基于骑行动作骨骼肌仿真的女性下肢皮肤形变表征

Characterization of skin deformation of female lower limb based on skeletal muscle simulation for cycling motion

为探究骑行运动时大腿部骨骼肌活动与皮肤形变规律,通过人体建模仿真系统对周期骑行运动中女性下肢关节、骨骼、肌肉运动进行分析,选择周期骑行运动中关节、骨骼、肌肉变化临界点作为关键帧,并对关键帧动作的大腿皮肤采用凝胶拓印法和Photoshop图形软件计算皮肤形变率,从定性和定量二方面研究女性大腿各部位皮肤在骑行运动中的形变规律。发现臀部区域的皮肤整体呈拉伸变形,臀褶区域拉伸率达到58%;靠近腹股沟与腹股沟方向一致的斜向区域皮肤收缩逐渐增大,收缩率达到50%;大腿前部皮肤形变比大腿后部小。研究结果可为骑行裤各分割区域具体松量设计及面料选择提供理论参考。

By modeling system,movement of joints,skeletons and muscles of the female limb were analyzed for cycling sports. Key frames were chosen,which were change critical points of joints,skeletons and muscles. The skin deformation of the thigh skin in the operation of the key frames are calculated by gel rubbing and using Photoshop graphics software. The deformation rule of the thigh skin in the cycling motion was researched quantitatively and qualitatively. The experiment results show the skin of the hip is stretched and deformed generally,with the stretch rate of the hip fold area up to 58%.The skin shrinkage of the oblique area close to the groin and consistent with the groin direction increases gradually,and the shrinkage rate reaches 50%. Skin deformation of anterior thigh is greater than that of posterior thigh. It provides theoretical basis for specific loose measurement design of each partitioning area of the cycling trousers and the fabric selection.