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Plank (w/ Spinal Rotation)
- Body weight
1) Get in the plank position - start on all fours and extend your legs back behind you. Put your arms directly under your shoulders.
1) Shift the weight to your left side and lift your right arm towards the ceiling. This will cause your trunk to twist - aim for a straight line between your right and left arm.
2) Pause for a second, now lower your hand back so you're in the plank position.
3) Repeat on the other side.