- 主要補助第三
- 難易度
- Novice
- フォース
- Pull
- グリップ
- None
- メカニック
- Isolation
- Lie on your back with your knees bent and your feet on the ground to allow for a flat lower back.
- Tuck your chin in and raise the back of the head slightly off the ground before lowering back down.
- As soon as you feel the ground with the back of your head, repeat the movement without resting on the ground.