Effects of training in Strength Shoes [symbol for trademark] on speed, jumping ability, and calf girth
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5203 72 collegiate males between 19-25 years of age were randomized into 1 of 3 groups (24 per group); a control group (CG) , a strength shoe group (SSG), or a regular shoe group (RSG). SSG and RSG trained 3x per week for 10 weeks and followed identical programs as prescribed by the manufacturer. SSG wore the Strength Shoe [symbol for trademark] while RSG wore their own athletic shoes. All Ss were tested before and after the 10 weeks for 40 yard dash time (40 TIME), vertical jump (VJUMP), broad jump (BJUMP), and right and left calf girth (RGIRTH & LGIRTH). RESULTS: 22 C, 14 SSG, and 16 RSG completed the study. 7 of the dropouts in SSG were due to injury; 1 of 8 dropouts in RSG was due to injury. Attendance for SSG and RSG averaged 89% of possible workouts. Changes as a result of the program are presented below: (Please view the pdf for table information) SSG had significant (p < .05) increases in RGIRTH and LGIRTH from pre to posttesting. However, this change was not significantly (p > .05) different than either C or RSG. There were no within or between group differences for 40 TIME, VJUMP, or BJUMP as a result of training. These results indicate that even though there was a tendency for training in Strength Shoe [symbol for trademark]s to improve performance, the increases were not significantly greater than training in regular athletic shoes. Additionally, the chances of injury appear to be greater when training in Strength Shoe [symbol for trademark]s.
Exercise -- Physiological aspects.