In gymnastics, the action or posture of keeping the legs closed and together; the opposite of splitting the legs (open-leg/straddle).
着地のときは閉脚を保ってバランスを取ることが大切だ。
When landing, it's important to keep your legs together to maintain balance.
この演技では閉脚から開脚へと滑らかに移行する動きが要求される。
This routine requires a smooth transition from closed legs to an open-leg position.