FOR FELLAS OVER 40, few exercises pack a more versatile (and important) punch than the lunge. We lose muscle as we age—that's just a fact of life. Stability and balance become more difficult.

Lunges are a simple exercise to strengthen the lower body and core, with or without weights. Proper form and modifications can help you avoid joint pain by taking stress off the knees. Versions like ...

A commonly overlooked move that can level up your leg day is the reverse lunge. I certainly underestimated this move until I added it to my workout routine. It’s a smart move for your balance, ...