When we do lower body exercises, other muscle groups always ... How to do a hamstring curl on a TRX: Lie on your back with your heels in the TRX foot cradles, keeping your legs extended about ...
When we do lower body exercises, other muscle groups always ... How to do a hamstring curl on a TRX: Lie on your back with your heels in the TRX foot cradles, keeping your legs extended about ...