Publication:

青年柔道運動員的等速肌力診斷

本研究的主要目的乃通過等速肌力測量系統，對青年柔道運動員進行上肢與下肢肌力的診斷，並就柔道運動員的主要技法不同，比較測量得的肌力參數差異。實驗以自願參加的柔道運動員男生16人與女生20人為實驗參加者（年齡：16.7 ± 1.6歲；運動年齡：4.5 ± 0.8年），其中擅長手技者21人、擅長足技者15人，經Biodex S4 Pro等速肌力測試與訓練系統對運動員的上肢肘關節與下肢膝關節進行30度/秒、60度/秒和120度/秒測試後，獲得伸肌與屈肌群向心工作的最大力矩、標準化最大力矩、平均爆發力和最大力矩平均值等肌力參數。再以獨立樣本t檢定進行兩種技法的差異考驗，統計的顯著水準設定為.05。研究結果發現男子柔道運動員的左側膝關節伸肌，在30度/秒負荷情境的最大力矩足技者（243.5 ± 36.3 Nm）顯著高於手技者（210.7 ± 21.0 Nm）（p < .05）；而實驗參加者各項負荷的上肢肌力參數，則均沒有擅長技法的顯著差異（ps > .05）。顯示柔道運動員上肢肌力的全面性發展，將是專項技術發揮的基本要求。

The purpose of this study was to assess the muscular strength performance of upper and lower extremity in isokinetic system for the youth judo players, and also to compare the strength difference between major techniques. Sixteen male and 20 female judo players (age: 16.7 ± 1.6 years old, training age: 4.5 ± 0.8 years) were served as the volunteers for this study. There were 21 players major hand techniques and 15 players major foot techniques. The Biodex S4 Pro was used to assess the strength performance of extensor and flexor of concentric action under the load condition of 30 degree/sec, 60 degree/sec, and 120 dergee/sec for elbow joints and knee joints. The strength parameters were included the maximal torque, the normalized maximal torque, the average power, and the average maximal torque. A t test for independent groups was used to evaluate whether hand major and foot major differ significantly with an alpha level of .05. The result showed the maximal torque of left knee extensor in foot major players (243.5 ± 36.3 Nm) was higher significantly than hand major (210.7 ± 21.0 Nm) under the load of 30 degree/sec (p < .05). There were no differences in upper extremity strength between the hand and foot techniques major in three loads (ps < .05). It indicated that the judo player is required to develop the upper extremity strength overall to secure the execution of major techniques.