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In JoVE (1)
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Articles by Scott Arnett in JoVE
JoVE Immunology and Infection
Ponta de dedo Metodologia de amostragem de sangue para a determinação da apoptose induzida pelo exercício de Linfócitos
1Department of Kinesiology, Recreation, and Sport, Western Kentucky University, 2Department of Health and Human Performance, University of Houston
O exercício é capaz de induzir a apoptose em células do sistema imunológico. Existem limitações de medição diversos, particularmente relacionadas com a quantidade de tempo necessário para isolar e tratar uma amostra de sangue antes da avaliação. Demonstrado é um procedimento rápido e minimamente invasivo para a análise do exercício apoptose induzida por linfócitos.
Other articles by Scott Arnett on PubMed
Aerobic Reserve and Physical Functional Performance in Older Adults
older adults can be limited in their performance of daily tasks due to an inadequate aerobic capacity. Aerobic capacity below minimum physiological thresholds required to maintain independence leaves older adults with little, or no, aerobic reserve.
Specificity of Training Modalities on Upper-body One Repetition Maximum Performance: Free Weights Vs. Hammer Strength Equipment
The purpose of this study was to determine whether a relationship exists between 1-repetition maximum (1RM) performed on hammer strength (HS) machines compared to free weights (FWs) and also to develop regression equations that can accurately predict 1RM when switching from exercise modality to another. Thirty-one trained male subjects performed 1-RM lifts (1RM's) on 3 HS externally loaded machines and 3 comparable FW exercises. Subjects performed 2 1RM tests during each laboratory session, with at least 48-72 hours of recovery between each. One repetition maximum data were used to (a) determine the relationship between 1RM performed on HS vs. FW and (b) to develop regression equations that can accurately predict 1RM's when switching from 1 exercise modality to another. Statistics revealed significant differences (p < 0.05) between 1RM's performed on the HS equipment as compared to its corresponding (FW) exercise. For all exercises, 1RM's were significantly greater on the HS equipment. Regression equations were developed for all exercises, except when predicting the HS shoulder press and the HS preacher curls from their free weight counterparts, where no variables existed that could significantly predict their respective 1RM's. As 1 RMs were significantly greater when using the HS equipment compared to when using FWs, those transitioning from HS exercise to FW exercise should exercise caution.
Cognitive Awareness of Carbohydrate Intake Does Not Alter Exercise-induced Lymphocyte Apoptosis
The purpose of this investigation was to determine whether cognitive awareness of carbohydrate beverage consumption affects exercise-induced lymphocyte apoptosis, independent of actual carbohydrate intake.
