- 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
- Bring yourself on all 4's. Push the ground away from you, rounding back and shoulders as much as possible.
- To enhance the spine flexion suck the belly button in and tuck the tailbone (coccyx) under. Hold this position for a brief moment
- Now do the exact opposite, try to bend the spine backwards. Go back and forth on these positions