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Muscle Weakness: A vague complaint of debility, fatigue, or exhaustion attributable to weakness of various muscles. The weakness can be characterized as subacute or chronic, often progressive, and is a manifestation of many muscle and neuromuscular diseases. (From Wyngaarden et al., Cecil Textbook of Medicine, 19th ed, p2251)

Adapted Resistance Training Improves Strength in Eight Weeks in Individuals with Multiple Sclerosis

1Motion Analysis Laboratory, Kennedy Krieger Institute, 2Physical Medicine & Rehabilitation, Johns Hopkins University School of Medicine, 3Johns Hopkins University School of Medicine, 4Department of Neurology, Johns Hopkins University School of Medicine

JoVE 53449


 Medicine

The Neuromuscular Junction: Measuring Synapse Size, Fragmentation and Changes in Synaptic Protein Density Using Confocal Fluorescence Microscopy

1Physiology and Bosch Institute, University of Sydney, 2Motor Neuron Disease Research Group, Australian School of Advanced Medicine, Macquarie University, 3Advanced Microscopy Facility, Bosch Institute, University of Sydney

JoVE 52220


 Neuroscience

Measurement of Maximum Isometric Force Generated by Permeabilized Skeletal Muscle Fibers

1Department of Orthopaedic Surgery, University of Michigan Medical School, 2Department of Molecular & Integrative Physiology, University of Michigan Medical School, 3Department of Biomedical Engineering, University of Michigan Medical School, 4Department of Surgery, Section of Plastic Surgery, University of Michigan Medical School

JoVE 52695


 Bioengineering

An Objective and Child-friendly Assessment of Arm Function by Using a 3-D Sensor

1Data Science, Roche Pharmaceutical Research and Early Development Informatics, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., 2Translational Technologies and Bioinformatics, Pharmaceutical Sciences, Roche Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., 3Biomarker Experimental Medicine, Neuroscience, Roche Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., 4Division of Neuropediatrics, University of Basel Children's Hospital, 5Department of Neurology, University of Basel Hospital, 6Translational Medicine, Neuroscience and Rare Diseases, Roche Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd.

JoVE 57014


 Behavior

Systemic Delivery of MicroRNA Using Recombinant Adeno-associated Virus Serotype 9 to Treat Neuromuscular Diseases in Rodents

1Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 2Section on Nervous System Development and Plasticity, The Eunice Kennedy Shriver National Institute of Child and Human Development, National Institutes of Health, 3Department of Molecular Biosciences, Rice Institute for Biomedical Research, Northwestern University, 4Department of Physiology, Anatomy and Genetics, University of Oxford

JoVE 55724


 Genetics

Intra-iliac Artery Injection for Efficient and Selective Modeling of Microscopic Bone Metastasis

1Lester and Sue Smith Breast Center, Baylor College of Medicine, 2Department of Molecular and Cellular Biology, Baylor College of Medicine, 3Graduate Program in Developmental Biology, Baylor College of Medicine, 4Department of Molecular and Human Genetics, Baylor College of Medicine, 5McNair Medical Institute, Baylor College of Medicine, 6Dan L. Duncan Cancer Center, Baylor College of Medicine

JoVE 53982


 Cancer Research

Analysis of Zebrafish Larvae Skeletal Muscle Integrity with Evans Blue Dye

1Program in Genetics & Genome Biology, The Hospital for Sick Children, 2Department of Molecular Genetics, The University of Toronto, 3Program in Genomics of Differentiation, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 4Departments of Pediatrics and Neurology, University of Michigan

JoVE 53183


 Developmental Biology

Tissue Triage and Freezing for Models of Skeletal Muscle Disease

1Division of Pediatric Pathology, Department of Pathology and Laboratory Medicine, Medical College of Wisconsin, 2Department of Physiology and Cell Biology, The Ohio State University, 3Department of Human Nutrition, Foods and Exercise, Virginia Tech, 4Division of Biomedical Informatics, Department of Biostatistics, Department of Computer Science, University of Kentucky, 5Division of Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, 6Cure Congenital Muscular Dystrophy, 7Joshua Frase Foundation, 8Department of Rehabilitation Medicine, University of Washington, 9Department of Physiology, University of Arizona

JoVE 51586


 Biology

Foot Exam

JoVE 10192

Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA


The foot is a complex structure composed of numerous bones and articulations. It provides flexibility, is the essential contact point needed for ambulation, and is uniquely suited to absorb shock. Because the foot must support the weight of the entire body, it is…


 Physical Examinations III

Ankle Exam

JoVE 10191

Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA


The ankle and foot provide the foundation for the body and the stability needed for upright posture and ambulation. Because of its weight-bearing function, the ankle joint is a common site of injury among athletes and in the general population. Ankle injuries occur…


 Physical Examinations III

Shoulder Exam II

JoVE 10185

Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA


The shoulder exam continues by checking the strength of the rotator cuff muscles and biceps tendons. The rotator cuff muscles (supraspinatus, infraspinatus, teres minor, and subscapularis) act as compressors, holding the humeral head in place against the glenoid.…


 Physical Examinations III

Cranial Nerves Exam I (I-VI)

JoVE 10091

Source:Tracey A. Milligan, MD; Tamara B. Kaplan, MD; Neurology, Brigham and Women's/Massachusetts General Hospital, Boston, Massachusetts, USA


During each section of the neurological testing, the examiner uses the powers of observation to assess the patient. In some cases, cranial nerve dysfunction is readily apparent: a patient might…


 Physical Examinations III

Motor Exam I

JoVE 10052

Source:Tracey A. Milligan, MD; Tamara B. Kaplan, MD; Neurology, Brigham and Women's/Massachusetts General Hospital, Boston, Massachusetts, USA


Abnormalities in the motor function are associated with a wide range of diseases, from movement disorders and myopathies to strokes. The motor assessment starts with observation of the patient.…


 Physical Examinations III

Cranial Nerves Exam II (VII-XII)

JoVE 10005

Source:Tracey A. Milligan, MD; Tamara B. Kaplan, MD; Neurology, Brigham and Women's/Massachusetts General Hospital, Boston, Massachusetts, USA


The cranial nerve examination follows the mental status evaluation in a neurological exam. However, the examination begins with observations made upon greeting…


 Physical Examinations III

Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients

1Outcomes After Critical Illness and Surgery (OACIS) Group, Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, 2Critical Care Physical Medicine and Rehabilitation Program, Johns Hopkins Hospital, 3Department of Physical Medicine and Rehabilitation, Johns Hopkins University, 4Department of Rehabilitation Services, University of Maryland Medical System

JoVE 2632


 Medicine

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions

1School of Biomedical Engineering, Science and Health Systems, Drexel University, 2Department of Physical Therapy and Rehabilitation Sciences, Drexel University, 33College of Nursing and Health Professions, Drexel University, 4Department of Nutrition Sciences, Drexel University

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JoVE 59230


 JoVE In-Press

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