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| 沙滩排球扣球起跳阶段人体环节运动的生物力学特征 | |
| 引用本文： | 李世明,刘学贞,许全盛.沙滩排球扣球起跳阶段人体环节运动的生物力学特征[J].体育与科学,2001,22(3):37-39. |
| 作者姓名： | 李世明 刘学贞 许全盛 |
| 作者单位： | 1. 北京体育大学博士研究生 2. 北京体育大学 3. 江苏省体育科学研究所 |
| 摘 要： | 采用运动学手段对沙滩排球上步扣球起跳阶段人体环节的运动特征进行了研究，结果表明：“重心最低”时刻右踝角较小并没有影响人体的整体姿位；右踝角在缓冲阶段屈曲幅度较大，而在蹬伸阶段屈曲幅度较小；髋、膝二关节伸展过早，影响了下肢三关节蹬伸运动的连贯性；起跳时肩关节发力过早影响了上、下肢动作配合的协调性。 |
| 关 键 词： | 沙滩排球 扣球 人体环节 特征 运动生物力学 |
| 文章编号： | 1004-4590(2001)03-00037-03 |
| 修稿时间： | 2001年3月24日 |
Movement Characteristics of Human Body Segments in the Take- off Phase of Spike in Beach Volleyball |
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| Abstract: | With the means of kinematics we studied the movement characteristics of human body segments in takeoff phase of spike in beach volleyball. The results : 1)the small degree of right ankle joint did not influence the overall posture of human body; 2) the smaller dorsiflexion amplitude in cushion phase whereas the bigger dorsiflexion amplitude in thrust phase; 3)both hip joint and knee joint initiated their movements so early that it spoiled the continuity of thrust movement of three joints of lower limb; 4)right shoulder joint initiated its movement so early that it spoiled the coordination between upper limb and lower limb. |
| Keywords: | beach volleyball spike segment of human body characteristic sports biomechanics |
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