Medicine and Health Sciences Commons^™

Effects Of Physical Exercise In Older Adults With Reduced Physical Capacity: Meta-Analysis Of Resistance Exercise And Multimodal Exercise, Chiung-Ju Liu, Wen-Pin Chang, Islene Araujo De Carvalho, Katie E. L. Savage, Lori W. Radford, Jotheeswaran Amuthavalli Thiyagarajan

Occupational Therapy Faculty Publications and Presentations

Older adults with reduced physical capacity are at greater risk of progression to care dependency. Progressive resistance strength exercise and multimodal exercise have been studied to restore reduced physical capacity. To summarize the best evidence of the two exercise regimes, this meta-analysis study appraised randomized-controlled trials from published systematic reviews. Medline, Embase, and the Cochrane Database of Systematic Review and Cochrane Central Register of Controlled Clinical Trials were searched for relevant systematic reviews. Two reviewers independently screened the relevant systematic reviews to identify eligible trials, assessed trial methodological quality, and extracted data. RevMan 5.3 software was used to analyze data …

The Effects Of Moderate Intensity Strength Training Coupled With Blood Flow Restriction: A 12 Week Intervention, Kelly Barrett

Electronic Thesis and Dissertation Repository

Blood flow restriction training (BFRT) has been suggested to increase muscle size and strength in trained and untrained individuals when using light load intensities (30 percent 1-RM). However, there is little data to support its use when working with moderate load intensities, specifically, above 50 percent of an individual’s 1-RM. The purpose of this study was to evaluate the effects of moderate load intensity BFRT on muscle size and strength of the biceps brachii after a 12 week strength training intervention. Nine, previously strength trained, participants performed an elbow flexion exercise at 70 percent of their individualized 1-RM, twice per …

Effect Of Tendon Vibration During Wide-Pulse Neuromuscular Electrical Stimulation (Nmes) On The Decline And Recovery Of Muscle Force, Vanesa Bochkezanian, Robert Newton, Gabriel S. Trajano, Amilton Vieira, Timothy S. Pulverenti, Anthony J. Blazevich

Research outputs 2014 to 2021

Background:

Neuromuscular electrical stimulation (NMES) is commonly used to activate skeletal muscles and reverse muscle atrophy in clinical populations. Clinical recommendations for NMES suggest the use of short pulse widths (100–200 μs) and low-to-moderate pulse frequencies (30–50 Hz). However, this type of NMES causes rapid muscle fatigue due to the (non-physiological) high stimulation intensities and non-orderly recruitment of motor units. The use of both wide pulse widths (1000 μs) and tendon vibration might optimize motor unit activation through spinal reflex pathways and thus delay the onset of muscle fatigue, increasing muscle force and mass. Thus, the objective of this study …

Effectiveness Of A Home-Based Eccentric-Exercise Program On The Torque-Angle Relationship Of The Shoulder External Rotators: A Pilot Study, Timothy L. Uhl, Thomas Rice, Brianna M. Papotto, Timothy A. Butterfield

Physical Therapy Faculty Publications

Context: The role of the rotator cuff is to provide dynamic stability to the glenohumeral joint. Human and animal studies have identified sarcomerogenesis as an outcome of eccentric training indicated by more torque generation with the muscle in a lengthened position. Objective: The authors hypothesized that a home-based eccentric-exercise program could increase the shoulder external rotators’ eccentric strength at terminal internal rotation (IR). Design: Prospective case series. Setting: Clinical laboratory and home exercising. Participants: 10 healthy subjects (age 30 ± 10 y). Intervention: All participants performed 2 eccentric exercises targeting the posterior shoulder for 6 wk using a home-based intervention …

Effects Of Cluster Sets And Rest-Redistribution On Mechanical Responses To Back Squats In Trained Men, James J. Tufano, Jenny A. Colon, Sophia Nimphius, Lee E. Brown, Alex Petkovic, Justin Frick, Greg Haff

Research outputs 2014 to 2021

Eight resistance-trained men completed three protocols separated by 48-96 hours. Each protocol included 36 repetitions with the same rest duration, but the frequency and length of rest periods differed. The cluster sets of four (CS4) protocol included 30 s of rest after the 4th, 8th, 16th, 20th, 28th, and 32nd repetition in addition to 120 s of rest after the 12th and 24th repetition. For the other two protocols, the total 420 s rest time of CS4 was redistributed to include nine sets of four repetitions (RR4) with 52.5 s of rest after every four repetitions, or 36 sets of …

Effect Of A Neuromuscular Electrical Stimulation Muscle Strength Training Intervention On Muscle Force And Mass, Physical Health And Quality Of Life In People With Spinal Cord Injury, Vanesa Bochkezanian

Theses: Doctorates and Masters

Spinal cord injury (SCI) leads to significant deficits in muscle strength and mass, impacting negatively on physical health and quality of life (QoL). Physical rehabilitation techniques for people with SCI rely on constant updates and the accumulation of evidence regarding the efficacy of available and/or new physical interventions. Neuromuscular electrical stimulation (NMES) is already commonly used to activate skeletal muscles and subsequently reverse muscle atrophy, however NMES as a high-intensity “strength training” intervention appears to be a particularly promising technique for increasing muscle strength and mass and to subsequently improve physical health and quality of life (QoL) in people with …

Longitudinal Adaptations In Muscle Strength, Functional Performance, Gait Biomechanics, And Patient-Reported Function After Unilateral Total Knee Arthroplasty, Paul W. Kline

Theses and Dissertations--Rehabilitation Sciences

Objective: The aims of this research were to identify gaps in the literature related to impairments after total knee arthroplasty (TKA) (Aim 1) and define recovery between 3 and 6 months after TKA across four domains: 1) hip and knee muscle performance, 2) functional performance, 3) patient-reported function, and 4) biomechanics of walking and stair descent (Aim 2). Additionally, this project sought to explore the relationships between each domain (Aim 3) and establish predictive models to allow clinicians to use clinical measures to predict future gait biomechanics in patients after TKA (Aim 4). Ultimately, the results of this research would …