Differential Effect of 30 V.S 60-second Dynamic Muscle Stretching combined Warm-up on Explosiveness of Lower Limbs and Agility Performance in Adults.
| Autor: | Hsiao yun Kuo, 郭曉韻 |
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| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 Objective : It has been proposed that pre-exercise dynamic stretching could prevent sports injuries and improve athletic performance. However, as of now, there are still no official lasting durations or operation methods set for the dynamic stretching. The purpose of this study was to compare the effect of 30 seconds versus 60 seconds of pre-exercise dynamic stretching combined with warm-up exercises on the power and the agility of the lower limbs. Methods: The subjects consisted of 30 healthy adults between the ages of 20-40 years old, who were randomly divided into two groups: a 30-second group and a 60-second group. The evaluation test included the standing broad jump to assess the power of lower limbs and the agility T test to assess the agility of lower limbs. They practiced these two items at least one time or up to three times for familiarization before they began to participate the experiment. All participants completed three exercise test sessions within the same day, and they took a 3 minute rest between each session. Every exercise test session included the pre-test, warm-up, dynamic stretching exercise, and the post-test. At first, all participants received the evaluation ( pre-test ), and went jogging for 10 minutes as a warm-up exercise after completing the pre-test. Then subjects in both groups performed 30-second or 60-second dynamic stretching exercises in their Quadriceps, Hamstring, hip flexors, Gluteals and calf muscles. After completing the dynamic stretching exercise, they received the evaluation again ( post-test ) immediately. Results: Except for second agility T test, both groups showed statistically significant differences ( p < 0.05 ) for all the scores ( included average value and maximum value )of the agility T test and the standing broad jump between the pre-test and post-test of 3 test sessions. When comparing the 30-second group with the 60-second group, there were no statistically significant differences for the scores of the standing broad jump. The only significant difference ( p < 0.05 ) observed between the two groups was that the 30-second group increased in the score of the agility T test more than the 60-second group in third test session. Conclusions: The results of this study suggest that both 30 seconds and 60 seconds of pre-exercise dynamic stretching combined with warm-up exercises are positive in improving the power and the agility of the lower limbs. When comparing the 30 seconds with the 60 seconds of pre-exercise dynamic stretching combined with warm-up exercises, the effect of 30 seconds of pre-exercise dynamic stretching combined with warm-up exercises is more effective in improving the agility of lower limbs. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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