A lot like the TRX fallout, this movement will help you control and resist extension through your lower back.Lie on your back and reach your hands toward the ceiling. Bring your feet, knees, and hips up to 90 degrees. Exhale hard to bring your ribcage down and flatten your back to the floor. Hold this position through the set.From your starting position, extend and push through one heel and then bring it back up to 90 degrees. Your back is going to want to arch. Resist that tendency. Stay tight and reach long through the heel.
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