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Author : Ian Newhouse
Publisher : National Library of Canada
ISBN 13 : 9780315159822
Total Pages : 0 pages
Book Rating : 4.1/5 (598 download)
Book Synopsis The Effect of Overload Warm-up on Vertical Jump and Shot-put Performance [microform] by : Ian Newhouse
Download or read book The Effect of Overload Warm-up on Vertical Jump and Shot-put Performance [microform] written by Ian Newhouse and published by National Library of Canada. This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of this study was to explore the possibility of immediate temporary power gain, as seen in the vertical jump and shot-put performance through a warm-up of jumps and puts with added resistance. Twenty-two skilled jumpers and 11 skilled shot-putters volunteered to participate in the study. The jumpers were top Edmonton area athletes active in track and field, volleyball or basketball, while the shot-putters' skill levels ranged from 9 to 14 meters for females and 12 to 16 meters for males. Half of the subjects were female, and all were between the ages of 18 and 31. Each subject was tested under 3 different warm-up conditions for both the vertical jump and shot-put experiments: 1. Control "A", 1 pre-test trial/6 warm-up trials with no overload/ 1 post-test trial; 2. Control "B", 1 pre-test trial/no warm-up but a 7 minute rest/ 1 post-test trial; 3. Experimental, 1 pre-test trial/6 warm-up trials with overload, which was a 40 to 60 kilogram weight bar on the shoulders for the jumps and a 2 to 4 pound heavier shot for the puts/1 posttest trial. The 6 possibilities of different test sequences were randomly assigned to the subjects. In a supplementary experiment, 6 of the shot-putters warmed up with the heavier shot in an actual competition. The jumping experiment made use of high speed photography, a force plate, and integrated electromyogram. In the shot-put experiment, the only parameter measured was the distance of the put. From 18 possible warm-up categories, statistical analysis found the post-test trial to be significantly better (at the 0.05 level) than the pre-test trial in the following 6 categories: Sex Group Event Male and female combined Experimental Vertica1 jump Female Experimental Vertical jump Male and female combined Experimental Shot-put Male Experimenta1 Shot-put Male and female combined Control "A" Shot-put Female Control "A" Shot-put A second post-test trial was added for 6 of the subjects in the experiment, for it was felt that the timing of the movements might be offset by the overload warm-up. This brought a further significant improvement to the experimental group as the timing was apparently regained. Although the experimental group did improve to a greater degree than either of the controls, a significant difference.could not be found in comparisons between the three groups. Despite the inconclusive findings, the results did show promise that the proper application of resistance in a warm-up could aid skilled performance in explosive power events.
