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題名 | 次最大力量於定點跳躍之控制=The Control of Submaximal Force for Jumping on Targets |
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作者姓名(中文) | 陳帝佑; 陳重佑; 吳文進; | 書刊名 | 興大體育學刊 |
卷期 | 12 2013.01[民102.01] |
頁次 | 頁99-110 |
分類號 | 528.9011 |
關鍵詞 | 次最大力量; 跳躍; 動量; 衝量; Submaximal force; Jump; Momentum; Impulse; |
語文 | 中文(Chinese) |
中文摘要 | 目的:藉由動量-衝量定理,探討次最大力量之跳躍對於不同目標位置的動力學特徵。方法:以10名主修體育之男性大學生為實驗參與者,並採隨機方式要求實驗參與者從測力板起跳至目標位置,而目標位置分別為原地垂直之膝高、原地垂直之1/2膝高、前躍1 m之膝高和前躍1 m之1/2膝高。所有採集之參數以2(距離)x 2(高度)重複量數二因子變異數分析進行統計考驗,顯著水準訂為α = .05。結果:人體面對膝高時會產生較大之總衝量、減速衝量、加速衝量和加速衝量時間,以達成工作需求;但下蹲力量峰值和加速/減速衝量之比值則是1/2 膝高之值較大。另一方面,人體進行原地垂直跳時會有較大之總衝量、推蹬力量峰值和加速/減速衝量之比值;而前躍1 m跳之減速衝量、減速衝量時間和加速衝量時間等,則比原地垂直跳之值大。結論:次最大力量因應目標高度較高時,會採取增加減速衝量和加速衝量之策略,而人體進行原地垂直跳時,則須瞬間加大總衝量和推蹬力量峰值,以即時到達目標高度;然前躍1 m跳則比原地垂直跳有較長之下蹲和上蹬動作時間,故完成相同目標高度所需之力量負荷較小。 |
英文摘要 | Purpose: This study was to investigate the kinetic effects of submaximal force for jumping on targets by using principle of impulse and momentum. Methods: 10 male volunteer participants for this research were from university-level Physical Education majored students. All participants were then randomly selected for the sequence of test performance. Participants were positioned on the Kistler force platform to perform four jump tests: a) vertical jump to individual knee height, b) vertical jump to individual half of knee height, c) 1 m long jump to individual knee height, d) 1 m long jump to individual half of knee height. 2 (distance) × 2 (height) repeated measures two-way ANOVA was used to test the statistical difference of the collected parameters with an α level .05. Results: The finding indicated that knee height resulted a significant effect on total impulse, deceleration impulse, acceleration impulse, and acceleration impulse duration to complete the task and half knee height significantly had a greater peak value of downward force and ratio of acceleration impulse to deceleration impulse. On the other hand, as performing a vertical jump that total impulse, peak value of upward force and ratio of acceleration impulse to deceleration impulse were greater. During a 1 m long jump, deceleration impulse, deceleration impulse duration and acceleration impulse duration were greater than a vertical jump. Conclusion: As the participant presented a higher jump, submaximal force would be yielded by increasing deceleration impulse and acceleration impulse as a strategy. About a vertical jump, total impulse and peak value of upward force should be increase instantaneously to achieve the target height. In addition, to compare with a vertical jump that in the same height, a 1 m long jump had more duration of downward and upward in which its force loading was smaller. |
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