足不同背屈纵跳高度的生物力学分析  

Biomechanical Analysis on Vertical Jump Height According to Different Foot Dorsiflexions

作　　者：杨多多[1] 苏美华[2] 

机构地区：[1]毕节学院体育系,贵州毕节551700 [2]漳州师范学院体育系,福建漳州363000

出　　处：《河北体育学院学报》2012年第2期74-76,共3页Journal of Hebei Sport University

基　　金：毕节学院科学研究基金项目(院科合字20092014)

摘　　要：研究设计了3个可以使足呈5°、10°和15°背屈角度的蹲跳练习,探讨足不同背屈对纵跳高度的影响,结果显示足不同背屈都能提高跳起高度,5°时最高,平均增加了15.8cm,10°和15°时有所减少,分别增加12.2cm和10cm,充分显示出肌肉预拉长对发挥肌肉力量的作用,同时也表明肌肉的不同工作状态对肌肉收缩力的影响不同。This paper has designed three squat jump exercises which make the foot dorsiflexions show the angle of 5°,10° and 15°,exploring the effect of different foot＇s dorsiflexions on vertical high jump.The results show that all three different foot dorsiflexions can increase vertical jump height,among which 5° is the most effective,increasing 15.8 cm of height on average,while 10° and 15° increase 12.2 cm and 10 cm respectively,fully demonstrating that the muscle is elongated in advance to give play to strength.At the same time,it indicates that the muscle＇s different working states have different influence on muscle＇s covergent force.

关 键 词：足不同背屈 角度 纵跳高度 

分 类 号：G804.66[文化科学—运动人体科学]