摘要
通过分析呼啦圈健身运动过程中旋转特性,给出了呼啦圈旋转运动方程及其特定位置的轨迹,定性分析了保持呼啦圈不下落的临界转速与人体旋转角速度之间的关系,以及呼啦圈转速与人体腰间摩擦力之间的关系,进一步分析了呼啦圈各点速度的变化规律。
The motion equation and movement path were obtained by investigating the rotation characteristics of hula hoop in body-building exercises.The relationship between the critical rotary speed under which hula hoop remains motion and angular velocity of body rotation,the relation between the rotary speed of hula hoop and waist friction,and every pot speed＇s varying regularities of hula hoop were qualitatively analyzed.
出处
《太原理工大学学报》
CAS
北大核心
2014年第5期692-694,共3页
Journal of Taiyuan University of Technology
基金
山西省教学改革重点项目(J2012012)
山西省教学改革一般项目(J2013132)
关键词
呼啦圈
旋转特性
轨迹
摩擦
hula hoop
rotation properties
movement path
friction
