- 主要補助第三
- 難易度
- Intermediate
- フォース
- Pull
- グリップ
- Neutral
- メカニック
- Isolation
- Sit on the floor and flex your knees and hips to a 90 degree angle.
- Your feet should be hovering off the ground. (If that's too hard start with heels on the floor)
- Rotate your upper spine to engage your obliques.