Myth #3 - Leg extensions are safer for your knees than squats

A recent study in Medicine & Science in Sports & Exercise found that "open-chain" exercises—those in which a single joint is activated, such as the leg extension—are potentially more dangerous than closed-chain moves—those that engage multiple joints, such as the squat and the leg press.

The knee joint is controlled by the quadriceps and the hamstrings. Both working together to balance the weight. When you do leg extensions, your quadriceps work more independently this causes uneven compression between the patella (kneecap) and thighbone.

To squat safely, hold your back as upright as possible and lower your body until your thighs are parallel to the floor Try front squats if you find yourself leaning forward.