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Isokinetic Versus Isotonic Resistance Training: Defining The Mechanisms Of Hypertrophy And Exercise Execution Methods, George Daughtry

Doctorate in Kinesiology

Abstract

Purpose: To determine strength changes and hypertrophy differences at the biceps brachii between an isokinetic bicep curl machine created by C&M Machines and preacher curl exercise with a standard curl bar. The study also aimed to determine the effectiveness of the aforementioned machine and to give insight into this unique method of training.

Methods: A medical clearance form and a Physical Activity Readiness Questionnaire was implemented to evaluate ability to exercise. 10 subjects (n=10) were recruited, were 20.3 years old (20 +/- 2), and were cleared for rigorous exercise. Subjects were randomly assigned to a control group …

Developing A Practical Application Of The Isometric Squat And Surface Electromyography, David Phillips, Angelic Rose Del Vecchio, Kevin Carroll, Evan L. Matthews

Department of Exercise Science and Physical Education Scholarship and Creative Works

Electromyography (EMG) is a research tool used in gait analysis, muscle coordination evaluation, clinical evaluation and sports techniques. Electromyography can provide an insight into neural adaptations, cross education effects, bilateral contraction deficiencies, and antagonist activity in exercise-related movements. While there are clear benefits to using EMG in exercise-related professions, accessibility, cost, and difficulty interpreting the data limit its use in strength and clinical settings. We propose a practical EMG assessment using the isometric squat to identify compensatory activation patterns and report early observations. Ten healthy participants were recruited. Participants performed a 2-min isometric handgrip protocol and an isometric squat protocol. …