Document Type

Thesis - Open Access

Award Date


Degree Name

Master of Science (MS)


Physical Education


Many athletes score well on strength tests but cannot throw or jump proportional distances. In other words, they are unable to produce the power necessary for explosive-type events. There appears to be a gap in training techniques concerning the relationship between strength and power. Zanon has attempted to bridge this gap through his description of exercises which utilize the concept that muscles contract with greater force if this contraction in preceded by forced-stretching of leg with hip extensor muscles. At present, research relative to use of forced-stretch training exercises are used for long jumpers ad triple jumpers, underlying principles are not well understood. Further progress in improvement of present world jumping and throwing records will require improvement in methods of training presently employed. In this study the present investigator attempted to determine whether the forced-stretch concept of training might be used to improve jumping capabilities of athletes in sports requiring explosive action. The purpose of this study was to conduct a comparative analysis of the effects of selected exercise programs involved forced-stretch training and weight training in the development of leg power among college men, as measured by performance in the thirty-yard sprint, vertical power jump, and relative force tests. Also analyzed were data obtained through relative force grouping within the experimental and control groups.

Library of Congress Subject Headings

Physical education and training

Weight lifting

Muscle strength



Number of Pages



South Dakota State University