摘要
利用足底压力系统与加速度计,采集跑步爱好者在室外水泥地、草地、标准塑胶跑道和室内具有不同缓冲性能的跑步机上跑步时下肢胫骨加速度及足底压力数据。结果显示:在水泥地、塑胶跑道、不带缓冲跑步机上,胫骨加速度峰值、足底压力峰值(及出现时间)、压力—积分特征、最大压力分布差异均不明显;相比水泥地,草地和带缓冲跑步机均能减小触地时部分压力峰值,但其余冲击特征,如胫骨处加速度峰值及最大压力分布差异不大。提示:跑步触地时运动表面与下肢冲击之间可能并不存在必然联系,人体通过自身的调节可以影响不同运动表面对足部的负荷效果。
The study employed the foot pressure system and accelerometer to record and analyze the plantar pressure and impact data during running on five different surfaces： concrete, grass, synthetic track, and two treadmill surfaces （with or without a cushioning underlay ）. The results indicates that there was no significant difference in the maximum tibia acceleration, maximum plantar pressure （time of occurrence ）, the characteristics of pressure-time and peak pressure distribution for the concrete, synthetic, and treadmill （without a cushioning underlay） surfaces. Compared with jogging on the concrete surface, however, jogging on natural grass and the treadmill with a cushioning underlay can significantly reduce the peak pressure, but did not influence the rest of impact characteristics （ i. e. tibia impact and distributions of peak pressure ）. These findings indicate that there may be no inevitable relationships between the surface and the lower-limbimpact during running. The human body may change the impact induced by different surfaces, through kinematic adaptation or adjustments.
出处
《上海体育学院学报》
CSSCI
北大核心
2013年第5期89-94,共6页
Journal of Shanghai University of Sport
基金
国家自然科学基金资助项目(11302131)
教育部博士点基金资助项目(20123156120003)
上海高校青年教师培养资助计划项目(ZZsty12002)
关键词
跑步
运动表面
胫骨加速度
足底压力
压力分布
running
sports surface
tibia acceleration
plantarpressure
pressure distribution
