To examine the effect of Plyometric Training on quickness of jumpers, I carried out a program designed by this study for 8 weeks to the subject of 15 male and female jumpers in middle and high school. Afterwards, I measured muscular strength and muscular function by using vertical jump, running vert...
To examine the effect of Plyometric Training on quickness of jumpers, I carried out a program designed by this study for 8 weeks to the subject of 15 male and female jumpers in middle and high school. Afterwards, I measured muscular strength and muscular function by using vertical jump, running vertical jump and uniform velocity equipment and gained conclusion as follows. 1. As for the vertical and running vertical jump measurement result before and after Plyometric training, the height of vertical jump and running vertical jump before training was 53.60±8.28cm and 59.87±9.50cm respectively. The height of vertical jump and running vertical jump after 8 weeks of training was 55.27±8.27cm and 62.00±9.19cm respectively, which was higher than before the training and showed statistically meaningful difference(p<0.001, p<0.01). 2. As for the analysis result of relation between vertical and running vertical jump and uniform velocity muscular strength before and after Plyometric training, PT, PT/BW, AP, APT, TW of the knee joint had not shown statistically meaningful difference in every angular velocity of extensor except 300°/s(p<.05). Meanwhile, at flexior, every measurement variable showed statistically meaningful difference except AP of 240°/s. Especially, 60°/s showed meaningful difference (p<.001) at TW, 90°/s showed meaningful difference at every measurement variable(p<.001), 120°/s showed meaningful difference(p<.01) at TW, 180°/s showed meaningful difference (p<.01) PT, PT/BW, and 300°/s showed bigger meaningful difference(p<.001) at TW than other measurement variables. 3. After analyzing relation between vertical and running vertical jump and uniform velocity muscular strength after Plyometric training, I found the highest relation(r=.821, r=.728) was detected at extensor 120°/s and flexior 300°/s. 4. The result of measuring uniform velocity maximum muscular strength and muscular ratio At 60°/s, uniform velocity maximum muscular strength and muscular ratio before and after Plyometric training showed 45.15±8.37% and 51.13±7.29%, respectively, which can be considered statistically meaningful difference (p<.001). At 90°/s, it was 49.35±8.53% and 54.47±7.51% before and after the training, respectively, which showed statistically meaningful difference (p<.001). Also at 120°/s and 240°/s, it showed statistically meaningful difference(p<.05) by 52.17±10.67%, 53.93±13.72% before the training and 56.98±9.36%, 62.47±10.27% after the training.
To examine the effect of Plyometric Training on quickness of jumpers, I carried out a program designed by this study for 8 weeks to the subject of 15 male and female jumpers in middle and high school. Afterwards, I measured muscular strength and muscular function by using vertical jump, running vertical jump and uniform velocity equipment and gained conclusion as follows. 1. As for the vertical and running vertical jump measurement result before and after Plyometric training, the height of vertical jump and running vertical jump before training was 53.60±8.28cm and 59.87±9.50cm respectively. The height of vertical jump and running vertical jump after 8 weeks of training was 55.27±8.27cm and 62.00±9.19cm respectively, which was higher than before the training and showed statistically meaningful difference(p<0.001, p<0.01). 2. As for the analysis result of relation between vertical and running vertical jump and uniform velocity muscular strength before and after Plyometric training, PT, PT/BW, AP, APT, TW of the knee joint had not shown statistically meaningful difference in every angular velocity of extensor except 300°/s(p<.05). Meanwhile, at flexior, every measurement variable showed statistically meaningful difference except AP of 240°/s. Especially, 60°/s showed meaningful difference (p<.001) at TW, 90°/s showed meaningful difference at every measurement variable(p<.001), 120°/s showed meaningful difference(p<.01) at TW, 180°/s showed meaningful difference (p<.01) PT, PT/BW, and 300°/s showed bigger meaningful difference(p<.001) at TW than other measurement variables. 3. After analyzing relation between vertical and running vertical jump and uniform velocity muscular strength after Plyometric training, I found the highest relation(r=.821, r=.728) was detected at extensor 120°/s and flexior 300°/s. 4. The result of measuring uniform velocity maximum muscular strength and muscular ratio At 60°/s, uniform velocity maximum muscular strength and muscular ratio before and after Plyometric training showed 45.15±8.37% and 51.13±7.29%, respectively, which can be considered statistically meaningful difference (p<.001). At 90°/s, it was 49.35±8.53% and 54.47±7.51% before and after the training, respectively, which showed statistically meaningful difference (p<.001). Also at 120°/s and 240°/s, it showed statistically meaningful difference(p<.05) by 52.17±10.67%, 53.93±13.72% before the training and 56.98±9.36%, 62.47±10.27% after the training.
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