Stay tight. Squeeze the bar, tighten your abs, and keep your chest up. A strong upper body position protects your lower back.

“Jim got a late start in this sport, but he’s still hungry to compete at 90,” says Steve Denison, founder of the International Powerlifting Association. “He’s living proof that it’s never too late to ...

Build strength, boost coordination, and support longevity with these trainer-recommended low-impact jump exercises.