Q1.自由泳打腿的时候是髋部发力(扭屁股)然后大腿带动小腿,还是大腿发力然后大腿带动小腿呢?2.水中呼气的时候是不是用鼻子比用嘴好?个人觉得鼻子朝后呼气反作用力可能可以提供一点推力,虽然很小,嘴是朝下呼气的就起不到这个作用了。看视频好像运动员一般都是用鼻子呼气的?A姜义环:1.是大腿带动小腿。主要发力点和用 Q1. Freestyle when the leg is hip force (twisted buttocks) and then thighs to drive the calf, or the thigh force and thighs to drive the calf it? 2 when the water is exhaled nose is better than mouth? Personally feel the nose Exhale reaction toward the back may provide some thrust, although small, the mouth is exhaled downward to play this role. Watch the video as if athletes usually use the nose to exhale? A ginger ring: 1. Is the thigh to drive the calf. The main force point and use