Begin seated. Hold a 3-pound weight in each hand. Raise your arms out to the sides at shoulder height to form a T shape or “iron cross.” With your knuckles facing the sky and palms of your hands ...

You’re only as strong as your weakest link”—that’s a strength training adage that has stuck with me ever since I first laid hands on a pair of dumbbells.Invariably, most people’s weakest link is their ...