JoVE Visualize What is visualize?
Stop Reading. Start Watching.
Advanced Search
Stop Reading. Start Watching.
Regular Search
Find video protocols related to scientific articles indexed in Pubmed.
Behavioral Mediators of Weight Loss in the SHED-IT Community Randomized Controlled Trial for Overweight and Obese Men.
Ann Behav Med
PUBLISHED: 10-25-2014
Show Abstract
Hide Abstract
Little is known about which behavioral strategies are most important to target in weight loss interventions for men.
Related JoVE Video
Smart-phone obesity prevention trial for adolescent boys in low-income communities: the ATLAS RCT.
Pediatrics
PUBLISHED: 08-27-2014
Show Abstract
Hide Abstract
The goal of this study was to evaluate the impact of the Active Teen Leaders Avoiding Screen-time (ATLAS) intervention for adolescent boys, an obesity prevention intervention using smartphone technology.
Related JoVE Video
Intrapersonal and social environment correlates of leisure-time physical activity for cancer prevention: a cross-sectional study among Canadian adults.
J Phys Act Health
PUBLISHED: 08-01-2014
Show Abstract
Hide Abstract
Little is known about the intrapersonal and social factors associated with sufficient physical activity (PA) for cancer prevention, which is greater than for cardiovascular health.
Related JoVE Video
Physical activity and physical self-concept in youth: systematic review and meta-analysis.
Sports Med
PUBLISHED: 07-24-2014
Show Abstract
Hide Abstract
Evidence suggests that physical self-concept is associated with physical activity in children and adolescents, but no systematic review of this literature has been conducted.
Related JoVE Video
Physical Activity and Skills Intervention: SCORES Cluster Randomized Controlled Trial.
Med Sci Sports Exerc
PUBLISHED: 07-23-2014
Show Abstract
Hide Abstract
Physical activity declines dramatically during adolescence and activity levels are consistently lower among children living in low-income communities. Competency in a range of fundamental movement skills (FMS) may serve as a protective factor against the decline in physical activity typically observed during adolescence. The purpose of this study was to evaluate the impact of a 12-month multi-component physical activity and FMS intervention for children attending primary schools in low-income communities.
Related JoVE Video
Associations between program outcomes and adherence to Social Cognitive theory tasks: process evaluation of the SHED-IT community weight loss trial for men.
Int J Behav Nutr Phys Act
PUBLISHED: 06-27-2014
Show Abstract
Hide Abstract
Despite rising international rates of obesity, men remain reluctant to participate in weight loss research. There is a lack of evidence to guide the development of effective weight loss interventions that engage men. The objective of this study was to provide a comprehensive process evaluation of the SHED-IT (Self-Help, Exercise and Diet using Information Technology) weight loss program for men, as delivered in the SHED-IT community weight loss trial, and to identify key components associated with success.
Related JoVE Video
My Activity Coach - using video-coaching to assist a web-based computer-tailored physical activity intervention: a randomised controlled trial protocol.
BMC Public Health
PUBLISHED: 06-16-2014
Show Abstract
Hide Abstract
There is a need for effective population-based physical activity interventions. The internet provides a good platform to deliver physical activity interventions and reach large numbers of people at low cost. Personalised advice in web-based physical activity interventions has shown to improve engagement and behavioural outcomes, though it is unclear if the effectiveness of such interventions may further be improved when providing brief video-based coaching sessions with participants. The purpose of this study is to determine the effectiveness, in terms of engagement, retention, satisfaction and physical activity changes, of a web-based and computer-tailored physical activity intervention with and without the addition of a brief video-based coaching session in comparison to a control group.
Related JoVE Video
The PULSE (Prevention Using LifeStyle Education) trial protocol: a randomised controlled trial of a Type 2 Diabetes Prevention programme for men.
Contemp Clin Trials
PUBLISHED: 05-08-2014
Show Abstract
Hide Abstract
Intensive lifestyle interventions have been successful in reducing type 2 diabetes incidence. Whether intensive programmes requiring face-to-face contact, trained staff and access to facilities are feasible, on a larger scale, has been debated.
Related JoVE Video
The health benefits of muscular fitness for children and adolescents: a systematic review and meta-analysis.
Sports Med
PUBLISHED: 05-03-2014
Show Abstract
Hide Abstract
Physical fitness during childhood and adolescence has been identified as an important determinant of current and future health status. While research has traditionally focused on the association between cardio-respiratory fitness and health outcomes, the association between muscular fitness (MF) and health status has recently received increased attention.
Related JoVE Video
Self-Efficacy, Physical Activity and Sedentary Behavior in Adolescent Girls: Testing Mediating Effects of the Perceived School and Home Environment.
J Phys Act Health
PUBLISHED: 04-16-2014
Show Abstract
Hide Abstract
According to social-cognitive theory (SCT), self-efficacy affects health behavior both directly and indirectly by influencing how individuals perceive their environment. This study examines whether perceptions of home and school environment mediate the association between self-efficacy and physical activity (PA) and sedentary behavior in adolescent girls.
Related JoVE Video
Effectiveness of Interventions Targeting Health Behaviors in University and College Staff: A Systematic Review.
Am J Health Promot
PUBLISHED: 04-12-2014
Show Abstract
Hide Abstract
Abstract Objective . Evaluate the literature on interventions targeting tertiary education staff within colleges and universities for improvements in health behaviors such as physical activity, dietary intake, and weight loss. Data Source . One online database, Medline, was searched for literature published between January 1970 and February 2013. Study Inclusion and Exclusion Criteria . All quantitative study designs, including but not limited to randomized controlled trials, quasi-experimental studies, nonrandomized experimental trials, cohort studies, and case-control studies, were eligible. Data Extraction . Data extraction was performed by one reviewer using a standardized form developed by the researchers. Extraction was checked for accuracy and consistency by a second reviewer. Data Synthesis . Data in relation to the above objective were extracted and described in a narrative synthesis. Results . Seventeen studies were identified that focused on staff within the tertiary education setting. The review yielded overall positive results with 13 reporting significant health-related improvements. Weight loss, physical activity and fitness, and/or nutrition were the focus in more than half (n = 9) of the studies. Conclusion . This appears to be the first review to examine health interventions for tertiary education staff. There is scope to enhance cross-disciplinary collaboration in the development and implementation of a "Healthy University" settings-based approach to health promotion in tertiary education workplaces. Universities or colleges could serve as a research platform to evaluate such intervention strategies.
Related JoVE Video
Outdoor time is associated with physical activity, sedentary time, and cardiorespiratory fitness in youth.
J. Pediatr.
PUBLISHED: 04-02-2014
Show Abstract
Hide Abstract
To determine whether time spent outdoors was associated with increased moderate-to-vigorous physical activity (MVPA) and related health benefits in youth.
Related JoVE Video
Fundamental movement skills and physical activity among children living in low-income communities: a cross-sectional study.
Int J Behav Nutr Phys Act
PUBLISHED: 04-01-2014
Show Abstract
Hide Abstract
Although previous studies have demonstrated that children with high levels of fundamental movement skill competency are more active throughout the day, little is known regarding children's fundamental movement skill competency and their physical activity during key time periods of the school day (i.e., lunchtime, recess and after-school). The purpose of this study was to examine the associations between fundamental movement skill competency and objectively measured moderate-to-vigorous physical activity (MVPA) throughout the school day among children attending primary schools in low-income communities.
Related JoVE Video
Maternal and paternal parenting practices and their influence on children's adiposity, screen-time, diet and physical activity.
Appetite
PUBLISHED: 03-06-2014
Show Abstract
Hide Abstract
The primary aim of this study was to examine a range of potential behavioral and maternal/paternal correlates of adiposity in children. Secondary aims were to examine (a) correlates of screen-time, diet and physical activity and (b) if there were differences in maternal and paternal physical activity- and dietary-related parenting practices. Cross-sectional analysis was conducted using 70 families with children (59% boys (41/70), mean age 8.4 (±2.4) years). Parenting practices were measured using the Parenting Strategies for Eating and Activity Scale. Children's outcomes included: 7-day pedometry (physical activity), screen-time, percent energy from core foods (Food frequency questionnaire) and BMI z-score. Multiple regression models were generated to examine the associations between maternal and paternal parenting practices and children's variables. In the regression analyses, fathers' BMI (p < .01) and mothers' control (p < .001) were significantly associated with child weight status. Fathers' reinforcement (p < .01) was significantly associated with child physical activity. For screen-time, mothers' monitoring (p < .001) and child characteristics [age (p = .01), sex (p = .01), BMI z-score (p = .03)] were significant predictors. Mothers' parenting practices [limit setting (p = .01), reinforcement (p = .02)] and child screen-time (p = .02) were significantly associated with intake of core foods. Despite some similarities within families, three out of five parenting constructs were significantly different between mothers and fathers. Mothers and fathers have different parental influences on their children's weight status and lifestyle behaviors and both should be included in lifestyle interventions targeting children. A focus on maternal parenting specifically relating to screen-time and diet, and father's physical activity parenting and weight status may support their children in developing more healthy behaviors.
Related JoVE Video
Weight management including dietary and physical activity advice provided by Australian physiotherapists: a pilot cross-sectional survey.
Physiother Theory Pract
PUBLISHED: 02-21-2014
Show Abstract
Hide Abstract
Physiotherapists may have an impact on obesity prevention and treatment by providing nutrition and physical activity advice to overweight or obese clients; yet little is known about physiotherapists' beliefs and practices related to client weight management. The aim of this pilot study was to determine the practices, beliefs, attitudes and knowledge of physiotherapists regarding the provision of weight management advice to overweight or obese clients. Physiotherapists (n = 65) working in multiple practice settings completed a self-administered questionnaire. Logistic regression determined factors associated with the provision of dietary and physical activity advice for weight management. The majority of physiotherapists (n = 53 [81.5%]) believed providing weight management advice was within their scope of practice, yet only a minority had received training during their professional entry level education (n = 13 [20%]) or through professional development (n = 7 [11%]). Most physiotherapists (n = 55 [84.6%]) provided physical activity advice for weight management, but a minority (n = 27 [41.5%]) provided dietary advice. Having received training in weight management during their professional entry level education was associated with providing dietary advice (Odds ratio 8.8, 95% confidence interval 2.0-38.9, p = 0.004). Training in weight management may increase the likelihood of physiotherapists providing dietary advice, improving physiotherapists' management of obesity.
Related JoVE Video
Correlates of resistance training in post-treatment breast cancer survivors.
Support Care Cancer
PUBLISHED: 02-10-2014
Show Abstract
Hide Abstract
To explore demographic, health, social-cognitive and behavioural correlates of resistance training among post-treatment breast cancer survivors.
Related JoVE Video
Enhancing capacity for risk factor surveillance at the regional/local level: a follow-up review of the findings of the Canadian Think Tank Forum after 4 years.
Arch Public Health
PUBLISHED: 01-22-2014
Show Abstract
Hide Abstract
National health surveys are sometimes used to provide estimates on risk factors for policy and program development at the regional/local level. However, as regional/local needs may differ from national ones, an important question is how to also enhance capacity for risk factor surveillance regionally/locally.
Related JoVE Video
Efficacy of interventions that include diet, aerobic and resistance training components for type 2 diabetes prevention: a systematic review with meta-analysis.
Int J Behav Nutr Phys Act
PUBLISHED: 01-10-2014
Show Abstract
Hide Abstract
Current recommendations for the prevention of type 2 diabetes advise modification of diet and exercise behaviors including both aerobic and resistance training. However, the efficacy of multi-component interventions involving a combination of these three components has not been established. The aims of this review were to systematically review and meta-analyze the evidence on multi-component (diet?+?aerobic exercise?+?resistance training) lifestyle interventions for type 2 diabetes prevention. Eight electronic databases (Medline, Embase, SportDiscus, Web of Science, CINAHL, Informit health collection, Cochrane library and Scopus) were searched up to June 2013. Eligible studies 1) recruited prediabetic adults or individuals at risk of type 2 diabetes; 2) conducted diet and exercise [including both physical activity/aerobic and resistance training] programs; and 3) reported weight and plasma glucose outcomes. In total, 23 articles from eight studies were eligible including five randomized controlled trials, one quasi-experimental, one two-group comparison and one single-group pre-post study. Four studies had a low risk of bias (score???6/10). Median intervention length was 12 months (range 4-48 months) with a follow-up of 18 months (range 6.5-48 months). The diet and exercise interventions varied slightly in terms of their specific prescriptions. Meta-analysis favored interventions over controls for weight loss (-3.79 kg [-6.13, -1.46; 95% CI], Z?=?3.19, P?=?0.001) and fasting plasma glucose (-0.13 mmol.L?¹ [-0.24, -0.02; 95% CI], Z?=?2.42, P?=?0.02). Diabetes incidence was only reported in two studies, with reductions of 58% and 56% versus control groups. In summary, multi-component lifestyle type 2 diabetes prevention interventions that include diet and both aerobic and resistance exercise training are modestly effective in inducing weight loss and improving impaired fasting glucose, glucose tolerance, dietary and exercise outcomes in at risk and prediabetic adult populations. These results support the current exercise guidelines for the inclusion of resistance training in type 2 diabetes prevention, however there remains a need for more rigorous studies, with long-term follow-up evaluating program efficacy, muscular fitness outcomes, diabetes incidence and risk reduction.
Related JoVE Video
Main outcomes of the Move More for Life Trial: a randomised controlled trial examining the effects of tailored-print and targeted-print materials for promoting physical activity among post-treatment breast cancer survivors.
Psychooncology
PUBLISHED: 01-07-2014
Show Abstract
Hide Abstract
Participation in physical activity can improve the health outcomes of breast cancer survivors. To impact public health, broad-reaching sustainable interventions that promote physical activity are needed.
Related JoVE Video
Do personally tailored videos in a web-based physical activity intervention lead to higher attention and recall? - an eye-tracking study.
Front Public Health
PUBLISHED: 01-01-2014
Show Abstract
Hide Abstract
Over half of the Australian population does not meet physical activity guidelines and has an increased risk of chronic disease. Web-based physical activity interventions have the potential to reach large numbers of the population at low-cost, however issues have been identified with usage and participant retention. Personalized (computer-tailored) physical activity advice delivered through video has the potential to address low engagement, however it is unclear whether it is more effective in engaging participants when compared to text-delivered personalized advice. This study compared the attention and recall outcomes of tailored physical activity advice in video- vs. text-format. Participants (n?=?41) were randomly assigned to receive either video- or text-tailored feedback with identical content. Outcome measures included attention to the feedback, measured through advanced eye-tracking technology (TobiiX 120), and recall of the advice, measured through a post intervention interview. Between group ANOVA's, Mann-Whitney U tests and chi square analyses were applied. Participants in the video-group displayed greater attention to the physical activity feedback in terms of gaze-duration on the feedback (7.7 vs. 3.6?min, p?
Related JoVE Video
Related JoVE Video
The SHED-IT Weight Loss Maintenance trial protocol: A randomised controlled trial of a weight loss maintenance program for overweight and obese men.
Contemp Clin Trials
PUBLISHED: 09-16-2013
Show Abstract
Hide Abstract
Despite short-term efficacy, many weight loss studies demonstrate poor long-term results and have difficulty recruiting men. Cost-effective treatments that help men achieve long-term weight loss are required. Using a two-phase, assessor-blinded, parallel-group randomised controlled trial design this study will test the effectiveness and cost-effectiveness of a male-only weight loss maintenance intervention. In Phase I (3months) 209 men received the SHED-IT Weight Loss Program. In Phase II (12months) 92 men who lost 4kg or more were randomised to either (i) a maintenance group who received the 6-month, gender-tailored SHED-IT Weight Loss Maintenance Program, which included no face-to-face contact (n=47), or (ii) a self-help control group (n=45). Randomisation was stratified by weight loss (4kg-7.4kg, ?7.5kg) and BMI (<30kg/m(2), ?30kg/m(2)). Assessments occurred at study entry (start of Phase I), baseline (start of Phase II), 6 months (post-test) and will occur at 12 months (follow-up; primary endpoint). The primary outcome is weight change in Phase II (i.e. from baseline at 12months after randomization). Secondary outcomes include waist circumference (umbilicus and narrowest), blood pressure, body composition, objectively measured physical activity, sedentary time, portion size, dietary intake, quality of life, depressive symptoms, and behavioural cognitions. Costing data will be collected for cost-effectiveness analysis. Generalised linear mixed models (intention-to-treat) will assess outcomes for treatment (maintenance vs. control), time (baseline, 6-month and 12-month) and the treatment-by-time interaction. This will be the first study to evaluate a male-only, gender-targeted weight loss maintenance program. Results will provide evidence regarding feasible and theoretically-driven obesity treatments for men with potential for long-term impact and widespread dissemination. Trial Registration: Australian New Zealand Clinical Trials Registry (ACTRN12612000749808).
Related JoVE Video
Testing the utility of three social-cognitive models for predicting objective and self-report physical activity in adults with type 2 diabetes.
Br J Health Psychol
PUBLISHED: 09-12-2013
Show Abstract
Hide Abstract
Theory-based interventions to promote physical activity (PA) are more effective than atheoretical approaches; however, the comparative utility of theoretical models is rarely tested in longitudinal designs with multiple time points. Further, there is limited research that has simultaneously tested social-cognitive models with self-report and objective PA measures. The primary aim of this study was to test the predictive ability of three theoretical models (social cognitive theory, theory of planned behaviour, and protection motivation theory) in explaining PA behaviour.
Related JoVE Video
Adolescent pedometer protocols: examining reactivity, tampering and participants perceptions.
J Sports Sci
PUBLISHED: 09-09-2013
Show Abstract
Hide Abstract
Abstract The aim of this study was to investigate adolescents potential reactivity and tampering while wearing pedometers by comparing different monitoring protocols to accelerometer output. The sample included adolescents (N = 123, age range = 14-15 years) from three secondary schools in New South Wales, Australia. Schools were randomised to one of the three pedometer monitoring protocols: (i) daily sealed (DS) pedometer group, (ii) unsealed (US) pedometer group or (iii) weekly sealed (WS) pedometer group. Participants wore pedometers (Yamax Digi-Walker CW700, Yamax Corporation, Kumamoto City, Japan) and accelerometers (Actigraph GT3X+, Pensacola, USA) simultaneously for seven days. Repeated measures analysis of variance was used to examine potential reactivity. Bivariate correlations between step counts and accelerometer output were calculated to explore potential tampering. The correlation between accelerometer output and pedometer steps/day was strongest among participants in the WS group (r = 0.82, P ? 0.001), compared to the US (r = 0.63, P ? 0.001) and DS (r = 0.16, P = 0.324) groups. The DS (P ? 0.001) and US (P = 0.003), but not the WS (P = 0.891), groups showed evidence of reactivity. The results suggest that reactivity and tampering does occur in adolescents and contrary to existing research, pedometer monitoring protocols may influence participant behaviour.
Related JoVE Video
Adjusting divergences between self-reported and measured height and weight in an adult Canadian population.
Am J Health Behav
PUBLISHED: 09-05-2013
Show Abstract
Hide Abstract
To develop algorithm equations that could be used to adjust self-reported height and weight to elicit better estimates of actual BMI.
Related JoVE Video
Rationale and study protocol for the Active Teen Leaders Avoiding Screen-time (ATLAS) group randomized controlled trial: An obesity prevention intervention for adolescent boys from schools in low-income communities.
Contemp Clin Trials
PUBLISHED: 08-25-2013
Show Abstract
Hide Abstract
The negative consequences of unhealthy weight gain and the high likelihood of pediatric obesity tracking into adulthood highlight the importance of targeting youth who are at risk of obesity. The aim of this paper is to report the rationale and study protocol for the Active Teen Leaders Avoiding Screen-time (ATLAS) obesity prevention intervention for adolescent boys living in low-income communities.
Related JoVE Video
A qualitative synthesis of trials promoting physical activity behaviour change among post-treatment breast cancer survivors.
J Cancer Surviv
PUBLISHED: 04-12-2013
Show Abstract
Hide Abstract
Health outcome trials have provided strong evidence that participating in regular physical activity can improve the quality of life and health of post-treatment breast cancer survivors. Focus is now needed on how to promote changes in physical activity behaviour among this group.
Related JoVE Video
Theory-and evidence-based development and process evaluation of the Move More for Life program: a tailored-print intervention designed to promote physical activity among post-treatment breast cancer survivors.
Int J Behav Nutr Phys Act
PUBLISHED: 02-15-2013
Show Abstract
Hide Abstract
Several physical activity interventions have been effective in improving the health outcomes of breast cancer survivors. However, few interventions have provided detailed descriptions regarding how such interventions work. To develop evidence-based practice in this field, detailed descriptions of intervention development and delivery is needed. This paper aims to (1) describe the theory-and evidence-based development of the Move More for Life program, a physical activity program for breast cancer survivors; and (2) serve as an exemplar for theory-based applied research.
Related JoVE Video
Exploring changes in physical activity, sedentary behaviors and hypothesized mediators in the NEAT girls group randomized controlled trial.
J Sci Med Sport
PUBLISHED: 02-01-2013
Show Abstract
Hide Abstract
To evaluate the impact of a 12-month school-based multi-component program on adolescent girls physical activity and sedentary behaviors, and hypothesized mediators of physical activity behavior change.
Related JoVE Video
The nutrition and enjoyable activity for teen girls study: a cluster randomized controlled trial.
Am J Prev Med
PUBLISHED: 01-28-2013
Show Abstract
Hide Abstract
Obesity prevention among youth of low SES is a public health priority given the higher prevalence of youth obesity in this population subgroup.
Related JoVE Video
Patterns of weekday and weekend physical activity in youth in 2 Canadian provinces.
Appl Physiol Nutr Metab
PUBLISHED: 01-26-2013
Show Abstract
Hide Abstract
Few Canadian children are meeting physical activity (PA) guidelines for optimal growth and health. There is little information describing the patterns of PA among Canadian youth, so it is difficult to determine where the deficits occur. The purpose of this study was to identify subgroups of youth and windows of time characterized by low PA and high sedentary behaviour. We conducted a cross-sectional study of 626 youth (aged 10-15 years) in 2 Canadian provinces. The primary exposure variables included geographic setting (rural vs. urban), sex, and days of the week (weekend days vs. weekdays). The primary outcome measures were minutes of light PA, moderate to vigorous physical activity (MVPA), and sedentary behavior, assessed with accelerometry. Compared with weekdays, MVPA was ?30% lower on weekend days (55.8 ± 23.0 min vs. 38.7 ± 26.7 min; p < 0.001), whereas light PA was ?15% higher. Significantly more youth achieved an average of >60 min of MVPA on weekdays than on weekend days (46% vs. 22%; p < 0.001). Sex-specific differences in MVPA were more pronounced on weekdays than on weekend days (?13 vs ?8 min per day; p < 0.01). Youth in rural settings achieved ?9 fewer minutes of MVPA daily than youth in urban settings (p < 0.001). In youth 10 to 15 years of age, daily MVPA is lower and light PA is higher on weekend days than on weekdays. Girls and students living in rural areas were particularly vulnerable to low levels of MVPA.
Related JoVE Video
Development and reliability testing of a self-report instrument to measure the office layout as a correlate of occupational sitting.
Int J Behav Nutr Phys Act
PUBLISHED: 01-24-2013
Show Abstract
Hide Abstract
Spatial configurations of office environments assessed by Space Syntax methodologies are related to employee movement patterns. These methods require analysis of floors plans which are not readily available in large population-based studies or otherwise unavailable. Therefore a self-report instrument to assess spatial configurations of office environments using four scales was developed.
Related JoVE Video
Social cognitive theories used to explain physical activity behavior in adolescents: a systematic review and meta-analysis.
Prev Med
PUBLISHED: 01-13-2013
Show Abstract
Hide Abstract
To systematically review and examine the explanatory power of key social-cognitive theories used to explain physical activity (PA) intention and behavior, among adolescents.
Related JoVE Video
Healthy Alberta Communities: Impact of a three-year community-based obesity and chronic disease prevention intervention.
Prev Med
PUBLISHED: 01-08-2013
Show Abstract
Hide Abstract
To assess the impact of a 3year (2006-2009) community-based intervention for obesity and chronic disease prevention in four diverse "Healthy Alberta Communities" (HAC).
Related JoVE Video
Community-based physical activity interventions for treatment of type 2 diabetes: a systematic review with meta-analysis.
Front Endocrinol (Lausanne)
PUBLISHED: 01-07-2013
Show Abstract
Hide Abstract
Evidence suggests engaging in regular physical activity (PA) can have beneficial outcomes for adults with type 2 diabetes (TD2), including weight loss, reduction of medication usage and improvements in hemoglobin A1c (HbA1c)/fasting glucose. While a number of clinical-based PA interventions exist, community-based approaches are limited. The objective of this study is to conduct a systematic review with meta-analysis to assess the effectiveness of community-based PA interventions for the treatment of TD2 in adult populations. A search of peer-reviewed publications from 2002 to June 2012 was conducted across several electronic databases to identify interventions evaluated in community settings. Twenty-two studies were identified, and 11 studies reporting HbA1c as an outcome measure were pooled in the meta-analysis. Risk of bias assessment was also conducted. The findings demonstrate community-based PA interventions can be effective in producing increases in PA. Meta-analysis revealed a lowering of HbA1c levels by -0.32% [95% CI -0.65, 0.01], which approached statistical significance (p?
Related JoVE Video
Canadas Physical Activity Guide: examining print-based material for motivating physical activity in the workplace.
J Health Commun
PUBLISHED: 12-29-2011
Show Abstract
Hide Abstract
The authors conducted a secondary analysis on 202 adults from the Physical Activity Workplace Study. The aim of this analysis was to examine demographic characteristics associated with reading Canadas Physical Activity Guide (CPAG), being motivated by the guide, and whether participants in the Physical Activity Workplace Study who read the CPAG increased their physical activity levels over 1 year. Results revealed that less than 50% of participants read the full version of CPAG, and less than 10% were motivated by it. The CPAG also appears to be more appealing to and effective for women than for men. Although the CPAG had some influence in increasing mild physical activity levels in a workplace sample, there was also a decrease in physical activity levels among some members of the group. Overall, the effectiveness of CPAG was not substantial, and the findings of this analysis could help guide future targeted intervention materials and programs.
Related JoVE Video
The Healthy Dads, Healthy Kids community effectiveness trial: study protocol of a community-based healthy lifestyle program for fathers and their children.
BMC Public Health
PUBLISHED: 10-27-2011
Show Abstract
Hide Abstract
The Healthy Dads, Healthy Kids program was designed to help overweight fathers lose weight and positively influence the health behaviors of their children. The aim of the current study was to evaluate the previously established program in a community setting, in a large effectiveness trial.
Related JoVE Video
Testing mediator variables in a resistance training intervention for obese adults with type 2 diabetes.
Psychol Health
PUBLISHED: 09-06-2011
Show Abstract
Hide Abstract
A poor understanding of behaviour change mechanisms has hindered the development of effective physical activity interventions. The aim of this study was to identify potential mediators of change in a home-based resistance training (RT) program for obese individuals with type 2 diabetes. Obese individuals with type 2 diabetes (N?=?48) were randomly allocated to either an RT intervention (n?=?27) or a control group (n?=?21) for the 16-week study period. The study sample included 16 men and 32 women and the mean age of participants was 54.4 (±11.7) years. Participants in the RT group received a multi-gym and dumbbells and home supervision from a certified personal trainer. RT behaviour was measured using a modified Godin Leisure Time Questionnaire. Social-cognitive constructs were measured and tested in a mediating variable framework using a product-of-coefficients test. The intervention had a significant effect on RT behaviour (p?
Related JoVE Video
The effects of a supplemental, theory-based physical activity counseling intervention for adults with type 2 diabetes.
J Phys Act Health
PUBLISHED: 09-03-2011
Show Abstract
Hide Abstract
Physical activity (PA) is a cornerstone in the management of type 2 diabetes (T2DM). This pilot investigation explores the effects of a standard diabetes education program compared with a supplemental PA intervention on diabetes-related health outcomes.
Related JoVE Video
Explaining dietary intake in adolescent girls from disadvantaged secondary schools. A test of Social Cognitive Theory.
Appetite
PUBLISHED: 08-31-2011
Show Abstract
Hide Abstract
Much of the research on the determinants of dietary behavior has been guided by Banduras Social Cognitive Theory (SCT), yet few studies have tested the utility of its proposed structural paths. The aim of this paper was to test the capacity of SCT to explain dietary behaviors in a sample of 357 adolescent girls (13.2±0.5 years) from 12 secondary schools located in low-income communities in New South Wales, Australia. Participants completed validated SCT scales assessing nutrition-related self-efficacy, intention, behavioral strategies, family support, situation, outcome expectations, and outcome expectancies. Participants completed a validated food frequency questionnaire, from which, the percentage of total kilojoules from core-foods, non-core foods and saturated fat were calculated. The theoretical models were tested using structural equation modeling in AMOS. The models explained 48-51% and 13-19% of the variance in intention and dietary behavior, respectively. The models provided an adequate fit to the data, and self-efficacy was positively associated with healthy eating and inversely associated with unhealthy eating. However, the pathway from intention to behavior was not statistically significant in any of the models. While this study has demonstrated the utility of SCT constructs to explain behavior in adolescents girls, the proposed structural pathways were not supported. Further study of the role that implementation intentions play in explaining adolescent girls dietary behaviors is required.
Related JoVE Video
Action and coping planning with regard to dental brushing among Iranian adolescents.
Psychol Health Med
PUBLISHED: 07-21-2011
Show Abstract
Hide Abstract
The aims of this study were two-fold: (i) to examine the validity of the proposed three-factor structure (intention, action-, and coping planning) in an Iranian sample of adolescents, and (ii) to assess the predictive ability of the Theory of Planned Behavior (TPB) measures of action planning and coping planning for dental brushing. Eight hundred adolescents were randomly selected to participate in the study. 90% (721) of adolescents agreed to participate. Perceived behavioral control, action and coping planning scales and a self-report questionnaire related to dental brushing behavior were completed by the adolescents at baseline. One month later (time-point 2), the adolescents were asked to reassess their frequency of dental brushing over the four week period. Data were analyzed by a confirmatory factor analysis (CFA) on an original three-factor structure (intention, action plan, and coping plan). A hierarchical linear regression analysis was also performed. The CFA for the original three-factor structure showed a good fit index (?(2) = 637.60, degrees of freedom df = 116), goodness-of-fit index (GFI) = 91, and root mean square error of approximation (RMSEA) = 0.079. Adjusting for demographic variables, action- and coping planning together accounted for 7.9% of the variance associated with dental brushing behavior at one month. In conclusion, results suggest that action planning and coping planning are associated with higher frequency in dental brushing among Iranian adolescents.
Related JoVE Video
One-on-one lifestyle coaching for managing adolescent obesity: Findings from a pilot, randomized controlled trial in a real-world, clinical setting.
Paediatr Child Health
PUBLISHED: 07-05-2011
Show Abstract
Hide Abstract
Interventions for obese adolescents in real-world, clinical settings need to be evaluated because most weight management care occurs in this context.
Related JoVE Video
Predictors of physical activity in adults with type 2 diabetes.
Am J Health Behav
PUBLISHED: 06-21-2011
Show Abstract
Hide Abstract
To determine demographic, medical, social cognitive, and environmental predictors of aerobic physical activity and resistance training in a population sample of adults with type 2 diabetes.
Related JoVE Video
Self-reported physical activity preferences in individuals with prediabetes.
Phys Sportsmed
PUBLISHED: 06-16-2011
Show Abstract
Hide Abstract
The primary objective of this study was to determine the physical activity (PA) preferences in a sample of individuals with prediabetes.
Related JoVE Video
Adolescent weight status and related behavioural factors: web survey of physical activity and nutrition.
J Obes
PUBLISHED: 06-09-2011
Show Abstract
Hide Abstract
Purpose. To identify whether non-overweight students were different from their overweight or obese peers with respect to diet, suboptimal meal behaviours, and physical activity using a self-administered web-based survey. Methods. 4097 adolescents living in Alberta, Canada completed Web-SPAN (Web Survey of Physical Activity and Nutrition). Students were classified as overweight or obese, and differences were described in terms of nutrient intakes, physical activity, and meal behaviours. Results. Non-overweight students consumed significantly more carbohydrate and fibre, and significantly less fat and high calorie beverages, and had a higher frequency of consuming breakfast and snacks compared to overweight or obese students. Both non-overweight and overweight students were significantly more active than obese students. Conclusions. This research supports the need to target suboptimal behaviours such as high calorie beverage consumption, fat intake, breakfast skipping, and physical inactivity. School nutrition policies and mandatory physical education for all students may help to improve weight status in adolescents.
Related JoVE Video
Awareness of Canadas Physical Activity Guide to Healthy Active Living in a large community sample.
Am J Health Promot
PUBLISHED: 05-04-2011
Show Abstract
Hide Abstract
Determine the proportion of adults aware of Canadas Physical Activity Guide to Healthy Active Living (Guide) and its specific recommendations (objective 1); whether key demographic factors (objective 2a) and physical activity behavior (objective 2b) are associated with awareness and specific familiarity with the Guide; and if changes in awareness and specific recommendations with the Guide occurred over a 1-year period (objective 3a and 3b).
Related JoVE Video
Efficacy of tailored-print interventions to promote physical activity: a systematic review of randomised trials.
Int J Behav Nutr Phys Act
PUBLISHED: 04-14-2011
Show Abstract
Hide Abstract
Computer-tailored physical activity interventions are becoming increasingly popular. Recent reviews have comprehensively synthesised published research on computer-tailored interventions delivered via interactive technology (e.g. web-based programs) but there is a paucity of synthesis for interventions delivered via traditional print-based media in the physical activity domain (i.e. tailored-print interventions). The current study provides a systematic review of the tailored-print literature, to identify key factors relating to efficacy in tailored-print physical activity interventions.
Related JoVE Video
Determinants of quality of life in adults with type 1 and type 2 diabetes.
Health Qual Life Outcomes
PUBLISHED: 04-05-2011
Show Abstract
Hide Abstract
Limited evidence exists on the determinants of quality of life (QoL) specific to adults with type 1 diabetes (T1D). Further, it appears no study has compared the determinants of QoL between T1D and type 2 diabetes (T2D) groups. The objectives of this study were to examine: (1) determinants of QoL in adults with T1D; and, (2) differences in QoL determinants between T1D and T2D groups.
Related JoVE Video
Associations between physical activity and quality of life in a population-based sample of kidney cancer survivors.
Cancer Epidemiol. Biomarkers Prev.
PUBLISHED: 04-05-2011
Show Abstract
Hide Abstract
Physical activity (PA) improves quality of life (QoL) in several cancer survivor groups, but no study to date has focused on kidney cancer survivors (KCS). The purpose of this study was to estimate the prevalence of PA in KCS and determine any associations with QoL.
Related JoVE Video
Associations between the perceived presence of vending machines and food and beverage logos in schools and adolescents diet and weight status.
Public Health Nutr
PUBLISHED: 03-31-2011
Show Abstract
Hide Abstract
The increasing prevalence of obesity among youth has elicited calls for schools to become more active in promoting healthy weight. The present study examined associations between various aspects of school food environments (specifically the availability of snack- and beverage-vending machines and the presence of snack and beverage logos) and students weight status, as well as potential influences of indices of diet and food behaviours.
Related JoVE Video
Physical activity preferences in a population-based sample of kidney cancer survivors.
Support Care Cancer
PUBLISHED: 03-21-2011
Show Abstract
Hide Abstract
Physical activity (PA) improves quality of life in kidney cancer survivors (KCS), but PA participation rates are low. Behavior change interventions to increase PA in KCS should take into account PA preferences. The purpose of this study was to identify the PA preferences of KCS and determine any associations with selected demographic and medical variables.
Related JoVE Video
Test-retest reliability of a battery of field-based health-related fitness measures for adolescents.
J Sports Sci
PUBLISHED: 03-11-2011
Show Abstract
Hide Abstract
The main aim of this study was to determine the test-retest reliability of existing tests of health-related fitness. Participants (mean age 14.8 years, s = 0.4) were 42 boys and 26 girls who completed the study assessments on two occasions separated by one week. The following tests were conducted: bioelectrical impedance analysis (BIA) to calculate percent body fat, leg dynamometer, 90° push-up, 7-stage sit-up, and wall squat tests. Intra-class correlation (ICC), paired samples t-tests, and typical error expressed as a coefficient of variation were calculated. The mean percent body fat intra-class correlation coefficient was similar for boys (ICC = 0.95) and girls (ICC = 0.93), but the mean coefficient of variation was considerably higher for boys than girls (22.2% vs. 12.2%). The boys coefficients of variation for the tests of muscular fitness ranged from 9.0% for the leg dynamometer test to 26.5% for the timed wall squat test. The girls coefficients of variation ranged from 17.1% for the sit-up test to 21.4% for the push-up test. Although the BIA machine produced reliable estimates of percent body fat, the tests of muscular fitness resulted in high systematic error, suggesting that these measures may require an extensive familiarization phase before the results can be considered reliable.
Related JoVE Video
A test of the theory of planned behavior to explain physical activity in a large population sample of adolescents from Alberta, Canada.
J Adolesc Health
PUBLISHED: 03-09-2011
Show Abstract
Hide Abstract
To test the Theory of Planned Behavior (TPB) in a large population sample of adolescents from Alberta, Canada.
Related JoVE Video
Physical activity information seeking and advertising recall.
Health Commun
PUBLISHED: 02-25-2011
Show Abstract
Hide Abstract
The purposes of this research were to examine the characteristics of those who look for physical activity-related information, where they find it, and to examine what types of physical activity-related advertisements are recalled (i.e., publicly funded or commercial). These purposes were tested using secondary data analyses from two population health surveys. Results from the first survey (n=1211) showed gender, age, education, and activity-level differences in who is more likely to search for physical activity-related information. Adding the goal of being active into the model made age and activity level no longer significant but gender and education remained significant factors. The Internet was the most often cited source of physical activity information. The second survey (n=1600) showed that adults 55 years of age or older and participants with the least amount of education were more than twice as likely to name commercial advertisements than were participants aged 18-54 years or those with more education. These results help further our understanding of how publicly funded promotional campaigns fare against commercial advertising and also highlight the need to understand physical activity information-seeking behavior on the Internet and its implications for health promotion.
Related JoVE Video
Related JoVE Video
Steps towards permanently increasing physical activity in the population.
Curr Opin Psychiatry
PUBLISHED: 01-06-2011
Show Abstract
Hide Abstract
Maintaining recommended levels of physical activity throughout the lifespan is an important public health objective, considering this behaviour is positively associated with both physical and mental health across all age groups. This article provides an overview of selected publications with an exclusive focus on research relating to physical activity promotion published in the past 18 months.
Related JoVE Video
Physical activity related information sources predict physical activity behaviors in adults with type 2 diabetes.
J Health Commun
PUBLISHED: 12-21-2010
Show Abstract
Hide Abstract
Physical activity (PA) is a key management strategy for type 2 diabetes. Despite the known benefits, PA levels are low. Whether the low level of PA is related to lack of knowledge or support is not fully understood. This study was conducted to describe where and how often adults with type 2 diabetes receive and seek information related to PA and examine the relationships between the source and quality of PA information with PA behaviors. A series of questions related to the source and quality of PA information were added to a baseline survey distributed to the participants (N = 244) of the Canadian Aerobic and Resistance Training in Diabetes (CARED) study. Physicians and television were found to be the main sources of PA-related information. In our cross-sectional model, sources of PA-related information other than that from health care professionals explained 14% (p = .05) and 16% (p < .05) of the variance for aerobic-based and resistance training behaviors and 22% (p < .01) and 15% (p < .05) for these behaviors in our longitudinal model. Physical activity (PA)-related information is widely available to adults with type 2 diabetes. Neither the quantity nor the quality of the PA information provided by health care professionals predicted PA behavior. These data provide further insight into the modes with which PA can be promoted to adults with type 2 diabetes.
Related JoVE Video
The SHED-IT community trial study protocol: a randomised controlled trial of weight loss programs for overweight and obese men.
BMC Public Health
PUBLISHED: 11-03-2010
Show Abstract
Hide Abstract
Obesity is a major cause of preventable death in Australia with prevalence increasing at an alarming rate. Of particular concern is that approximately 68% of men are overweight/obese, yet are notoriously difficult to engage in weight loss programs, despite being more susceptible than women to adverse weight-related outcomes. There is a need to develop and evaluate obesity treatment programs that target and appeal to men. The primary aim of this study is to evaluate the efficacy of two relatively low intensity weight loss programs developed specifically for men.
Related JoVE Video
The Nutrition and Enjoyable Activity for Teen Girls (NEAT girls) randomized controlled trial for adolescent girls from disadvantaged secondary schools: rationale, study protocol, and baseline results.
BMC Public Health
PUBLISHED: 10-18-2010
Show Abstract
Hide Abstract
Child and adolescent obesity predisposes individuals to an increased risk of morbidity and mortality from a range of lifestyle diseases. Although there is some evidence to suggest that rates of pediatric obesity have leveled off in recent years, this has not been the case among youth from low socioeconomic backgrounds. The purpose of this paper is to report the rationale, study design and baseline findings of a school-based obesity prevention program for low-active adolescent girls from disadvantaged secondary schools.
Related JoVE Video
Determinants of quality of life in type 2 diabetes population: the inclusion of personality.
Qual Life Res
PUBLISHED: 10-11-2010
Show Abstract
Hide Abstract
The identification of factors that affect quality of life (QoL) is crucial to ameliorate the increasing burden of diabetes. This study tested a multi-dimensional model that consisted of factors across three domains (personal, medical, and lifestyle factors) to understand determinants of QoL in adults with type 2 diabetes.
Related JoVE Video
Physical activity preferences and type 2 diabetes: exploring demographic, cognitive, and behavioral differences.
Diabetes Educ
PUBLISHED: 08-24-2010
Show Abstract
Hide Abstract
The purpose of this study was to examine physical activity counseling and program preferences in a sample of adults with type 2 diabetes. Specifically, the objectives were to determine physical activity preferences (objective 1), and whether there were any significant differences between age and/or sex groups for these preferences (objective 1a). A subsidiary objective was to explore potential associations of key social-cognitive constructs (ie, self-efficacy and social support) with physical activity preferences (objective 2).
Related JoVE Video
Mechanisms for understanding the facilitators and barriers to capacity building for chronic disease prevention activities: an illustration.
Health Promot Pract
PUBLISHED: 08-20-2010
Show Abstract
Hide Abstract
This study explored facilitators and barriers to capacity building for chronic disease prevention (CDP) activities with participants in community-based workshops on environments related to CDP. Three phases of research were conducted. Worksheet analysis (Phase A) indicated that participants (n = 34) identified priority strategies related to the physical environment as a primary focus for CDP, followed by sociocultural, economic, and political environments. Questionnaire completion (Phase B; n = 17) indicated that individuals capacity was inhibited by a lack of organizational infrastructure (particularly, resources and public and research support). Interviews (Phase C; n = 11) revealed five factors that limited participants capacity: (a) organizations lack of competing priorities, (b) priorities secondary to the organizational mandate, (c) disconnect between organizational and government or funder priorities, (d) limited resources, and (e) larger community issues. Implications for research and practice are discussed.
Related JoVE Video
Peer telephone counseling for adults with type 2 diabetes mellitus: a case-study approach to inform the design, development, and evaluation of programs targeting physical activity.
Diabetes Educ
PUBLISHED: 07-28-2010
Show Abstract
Hide Abstract
The purpose of this case study was to determine the feasibility of peer-led telephone counseling for people with type 2 diabetes mellitus related to physical activity (PA) and to establish preliminary efficacy of peer-led telephone counseling for eliciting recommended changes in PA-related cognitions and behaviors for adults with type 2 diabetes mellitus.
Related JoVE Video
Reflections on community-based population health intervention and evaluation for obesity and chronic disease prevention: the Healthy Alberta Communities project.
Int J Public Health
PUBLISHED: 07-18-2010
Show Abstract
Hide Abstract
To reflect upon a population health intervention for obesity and chronic disease prevention, with specific attention to the processes of change and developing, implementing and evaluating an intervention in a community-university-government partnership context.
Related JoVE Video
Exploring facilitators and barriers to individual and organizational level capacity building: outcomes of participation in a community priority setting workshop.
Glob Health Promot
PUBLISHED: 07-01-2010
Show Abstract
Hide Abstract
This article explores facilitators and barriers to individual and organizational capacity to address priority strategies for community-level chronic disease prevention. Interviews were conducted with a group of participants who previously participated in a community priority-setting workshop held in two Alberta communities. The goal of the workshop was to bring together key community stakeholders to collaboratively identify action strategies for preventing chronic diseases in their communities. While capacity building was not the specific aim of the workshop, it could be considered an unintended byproduct of bringing together community representatives around a specific issue. One purpose of this study was to examine the participants capacity to take action on the priority strategies identified at the workshop. Eleven one-on-one semi-structured interviews were conducted with workshop participants to examine facilitators and barriers to individual and organizational level capacity building. Findings suggest that there were several barriers identified by participants that limited their capacity to take action on the workshop strategies, specifically: (i) organizations lack of priorities or competing priorities; (ii) priorities secondary to the organizational mandate; (iii) disconnect between organizational and community priorities; (iv) disconnect between community organization priorities; (v) disconnect between organizations and government/funder priorities; (vi) limited resources (i.e. time, money and personnel); and, (vii) bigger community issues. The primary facilitator of individual capacity to take action or priority strategies was supportive organizations. Recognition of these elements will allow practitioners, organizations, governments/funders, and communities to focus on seeking ways to improve capacity for chronic disease prevention.
Related JoVE Video
Physical activity and stages of change: a longitudinal test in types 1 and 2 diabetes samples.
Ann Behav Med
PUBLISHED: 06-10-2010
Show Abstract
Hide Abstract
The transtheoretical models (TTMs) ability to predict physical activity stage transitions that incorporates all social-cognitive constructs from the original model has not been conducted among adults with diabetes. The purpose of this study was to test the capacity of the TTM for predicting physical activity stage transitions among adults (?18 years of age) with type 1 (N?=?517) or type 2 (N?=?1,157) diabetes over 6 months. Participants were identified by a random-digit dialing telephone protocol through the Alberta Diabetes Registry. Assessments of TTMs stage of physical activity behavior change, self-efficacy, pros and cons, cognitive Processes of Change, and behavioral Processes of Change at baseline (time 1) and 6 months (time 2) were assessed by questionnaire. Over this time period, participants were categorized as having regressed (moved back at least one stage), remained (no stage change), or progressed (moved forward at least one stage). Baseline TTM constructs were analyzed for their ability to predict transition over 6 months. Moderate support for the TTM constructs in predicting physical activity stage transitions was found. Self-efficacy, pros, and behavioral Processes of Change hold relatively strong predictive power for stage progression over 6 months, with very few differences found between the types 1 and 2 diabetes groups. The capacity of the model in predicting stage transition is partially supported. When promoting physical activity among adults with diabetes, targeting self-efficacy, pros, and cognitive Processes of Change may favorably support stage transition in the pre-action stages, while strategies to enhance the behavioral Processes of Change may be appropriate for the Action and Maintenance stages.
Related JoVE Video
Population-based estimates of physical activity for adults with type 2 diabetes: a cautionary tale of potential confounding by weight status.
J Obes
PUBLISHED: 05-26-2010
Show Abstract
Hide Abstract
At a population level, the method used to determine those meeting physical activity guidelines has important implications, as estimating "sufficient" physical activity might be confounded by weight status. The objective of this study was to test the difference between three methods in estimating the prevalence of "sufficient activity" among Canadian adults with type 2 diabetes in a large population sample (N = 1614) while considering the role of weight status as a potential confounder. Our results revealed that estimates of physical activity levels vary by BMI categories, depending on the methods examined. Although physical activity levels were lower in the obese, their energy expenditure estimates were not different from those who were overweight or of a healthy weight. The implications of these findings are that biased estimates of physical activity at a population level may result in inappropriate classification of adults with type 2 diabetes as "sufficiently active" and that the inclusion of body weight in estimating physical activity prevalence should be approached with caution.
Related JoVE Video
The role of self-efficacy in explaining gender differences in physical activity among adolescents: a multilevel analysis.
J Phys Act Health
PUBLISHED: 05-21-2010
Show Abstract
Hide Abstract
The purposes of this study were to determine if a) gender moderated the relationship between self-efficacy and physical activity (PA) among youth in Alberta, Canada, and, alternatively b) if self-efficacy mediated the relationship between gender and PA.
Related JoVE Video
simple hit counter

What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.