Date of Award
Master of Arts
Human Performance and Health Education
Health, Physical Education & Recreation
Dr. Roger Zabik
Dr. Mary Dawson
Dr. Patricia Frye
Masters Thesis-Open Access
The purpose of this investigation was to compare temporal data during the phases of jumping. Eight NCAA, Di vision I football players completed four jumps: three depth jumps from heights of 0.15 m, 0.30 m, and 0.46 m, and a standing vertical jump. Subjects were grouped according to height jumped. The dependent variables were phase time, amortization time, and time to peak EMG. Surface EMG synchronized with high speed video was used to analyze the response of six muscles used in the jumping movement. Findings indicated that subjects who consistently jumped higher spent more time in each phase of the jumping movement. Jumpers spent the most time in the eccentric phase and the least time in the amortization phase. The high jump group had a longer amortization time than subjects in the low jump group. Time to peak EMG indicated a distinct proximal to distal recruitment pattern.
Conatser, Robert M., "A Comparative Analysis of the Vertical and Plyometric Style Depth Jump Using Electromyography (EMG)" (1995). Master's Theses. 4490.