Dunn, J. Hubert||Kahler, Robert
M.S. Ed. (Master of Education)
Department of Physical Education
Purpose. The purpose of this study was to determine the effect of a formal warm-up on performance in the shot put. Procedure. Forty subjects were selected and equated into two groups of twenty subjects each. One group was randomly selected to put the shot without engaging in a preliminary warm-up procedure. The other group put the shot after engaging in a formal warm-up. Group A trained for a period of four weeks during which the subjects put the shot five times daily in succession without warming up. Group B underwent a similar four week training period in which the subjects engaged in a ten-minute warm-up period prior to performance. Upon completion of the four week training session» both Group A and Group B were re-tested on shot-putting ability. Each subject was allowed five puts in succession on each of five consecutive days. Subjects in Group B were allowed the ten-minute warm-up before executing their puts. The t test for paired observations, the chi square test for significance, and the analysis of variance were used to treat the data gleaned from the week of testing. Findings. No significant differences were found between the means of Group A and Group B for the average of twenty-fire puts per subject. Warm-up prior to performance did not cause the mean of Group B to differ significantly from the mean of Group A. No significant difference appeared between the means of the average of the best puts on five successive days of Group A and B. Warm-up prior to performance did not cause the means of the average of the five best puts of Group B to differ significantly from the means of the average of the five best puts of Group A. Chi square was used to test the null hypothesis that the probability of the occurrence of the best puts in each of the five attempts was the same. The hypothesis was considered to be not tenable. For Group A, 70 per cent of the best puts occurred on attempts four and five. For Group B, 75.5 per cent of the best puts occurred on attempts one and two. The results of the chi square test were further substantiated by the analysis of variance which indicated the means of the puts for attempts one through five were not alike. When the test for significant gap was applied to the means of Group A, the means for attempts one and two were found to be alike, but both differed from the means for attempts three, four, and five. Significant differences between the means of the first attempt and all other means were observed when the test for significant gap was applied to the means of Group B. The means for attempts two and three were alike but different from the means of attempts four and five.
Bowers, Larry E., "The effect of warm-up on performance in shot-putting" (1966). Graduate Research Theses & Dissertations. 5584.
viii, 45 pages
Northern Illinois University
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