硅谷王川 Chuan
硅谷王川 Chuan
A-skip 和 B-skip 动作示范：活动髋关节，短跑之前的热身必备动作。 B-skip 抬膝之后，要把腿伸展出去，再踩地。
Chari Hawkins
Chari Hawkins @_charihawkins · 
If you’re doing A-skips and B-skips, double-check your form 👏🏼 A-Skip: knee up, toe up — simple. B-Skip: knee up, then extend, snap down under you. Don’t rush it. Nail the positions, then worry about speed. 🤍 #TrackDrills #SprinterTips #FormFirst https://t.co/WmDIb4RWCQ
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