This is a posterior core exercise that will keep you from rounding your spine too much.
- Get on all fours, with your knees under your hips and your hands under your shoulders. Remember to keep abs engaged and keep your back flat.
- Reach out with your right hand and extend your left leg out behind you.
- Round your back and head to connect your right elbow with your left leg under your body. This completes one rep.
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