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篇名 |
女子排球選手前後排扣球技術之分析
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並列篇名 | Analysis of Female Volleyball Players SpikeSkills at Front-row and Back-row |
作者 | 陳膺成、黃長福 |
中文摘要 | 本硏究針對女子排球選手前排長攻與後排扣球,以三維攝影分析法進行運動學的分析,透過前後排扣球技術的差異性比較,改善女子選手後排攻擊的技術。方法:受試者爲臺灣女子高中甲組排球聯賽冠軍隊的6位選手(年齡17.2 ± 0.4歲;身高173.3 ± 3.4cm;體重65.2 ± 3.3kg;球齡8.3 ± 0.5年),以二咅EJVC9800數位攝影機(120Hz)拍攝受試者前排長攻與後排扣球的動作,以Kwon3D人體動作分析系統計算出各項三維運動學參數。以相依樣本t考驗探討前排長攻與後排扣球動作結構的差異(α=05)。結果:後排扣球有較佳的跳躍高度、起跳-擊球的重心水平位移、起跳-落地的重心水平位移。而前排長攻在擊球點高度、擊球瞬間肩關節與肘關節角度、肩關節角速度、肘關節角速度、腕關節角速度、擊球後球速及擊球角度上有較佳的表現。結論:後排扣球因有較長的助跑距離而有較佳的身體重心位移和跳躍高度,但是在揮臂速度、擊球高度與擊球速度上卻不如前排長攻,筆者認爲選手對於後排扣球的技術較不純熟,導致擊球時機掌握不佳,手臂角度較小,使得揮臂擊球的不流暢而影響球速。因此,未來在訓練時建議應加強後排扣球的揮臂技巧和擊球時機的掌握,使其在最佳的時機擊球,應能提昇其揮臂速度以增加球速。 |
英文摘要 | analysis of spiking at the front-row and back-row, helping to progress the spike skill at back-row.Method: Six high school players participated in this study ( Ages 17.2 ± 0.4 yr, height 173.3 ± 3.4cm, weight 65.2±3.3 kg, and training years 8.3 ± 0.5 yr). Two JVC9800 digital videocameras(120Hz, shutter speed 1/250 sec) was used to collect spiking motion. Kwon 3D motionsystem was used to analyze the three dimension kinematic variables, with the dependence samplet-test treats the difference of performance between front-row and back-row spike(α=.05). Results:The results were indicated that the back-row spike had greater jumping height, the horizontaldisplacement of body centre of mass(CM). The front-row spike had greater impact height, theimpact shoulder angle and elbow angle, the shoulder peak angular velocity, the elbow peak angularvelocity, the wrist peak angular velocity, the ball-release velocity and the impact angle. Conclusion:The back-row spike had longer approach so it had better CM displacement and jump height, but thespeed of swing, the height of impact and the initial ball-release velocity were inferior than thefront-row spike. In my opinion, the reason was that the players could not take the optimum timingof spiking. Therefore players should improve their back-row impact timing and swinging techniqueto increase the initial ball-release velocity. |
起訖頁 | 044-051 |
關鍵詞 | 排球、三維運動學、扣球、volleyball、three dimension kinematics analysis,、spike |
刊名 | 華人運動生物力學期刊 |
期數 | 200910 (1期) |
出版單位 | 台灣運動生物力學學會 |
該期刊 上一篇
| 不同模式動態坐姿平衡訓練對坐姿平衡之影響 |
該期刊 下一篇
| 運動生物力學之趨勢 |