Abstract
Abstract Using a psychological control (placebo) and a balanced experimental design to secure unequivocal results, it was found that pre-exercise massage yielded 2.6 percent improvement in the vertical jumping performance of 36 college men. The amount of improvement was twice as large in the fifth and sixth trials as in the preceding jumps of the six-trial test series. The average jump (48.8 cm.) and the test-retest reliability (r = .94) agreed closely with previous studies using the Henry jumping apparatus. During the six jumps of the first day (without massage), the practice effect caused 3.6 percent improvement, but there was no significant practice effect during the second or third day of testing or between three successive days spaced one week apart.
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Schedule a callMore From: Research Quarterly. American Association for Health, Physical Education and Recreation
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