FLEXION: 90°

 

- Hamstrings

- Erector spinae

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EXTENSION: 30-45°

 

- Rectus abdominis

- Internal obliques

- External obliques

- psoas major

- Rectus femoris

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ROTATION: 30-45°

 

- Internal obliques

- External obliques

- Erector spinae

- Quadratus lumborum

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LATERAL FLEXION: 30-45°

 

- Internal obliques

- External obliques

- Erector spinae

- Quadratus lumborum

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