1. Push your elbows back for a simple stretch that might crack your sternum. Start by standing with your feet shoulder-width apart. Bend your arms at the ... 2. Twist your torso side to side if your sternum hasn’t cracked. Bring your arms up so they're almost even with your shoulders, then bend your elbows. Twist ... 3. Try a doorway stretch for an easy variation on a twist. Hold one of your elbows at a 90° angle from your body, with your forearm pressed against a doorframe ...
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