Change up your classic squatting routine with a box squat. Follow along as three top trainers walk you through the do's and don'ts. In contrast to your typical, “I learned this in PE class,” air squat ...

Whether you realize it or not, your quads are doing the most—every time you sit, stand, step, or sprint. These powerhouse muscles on the front of your thighs are crucial for strength, balance, and ...