7 Exercises That You Don't Ever Want To Do

Seated Leg Extensions

This machines function is to target the quad muscles of your front thighs. The machine puts strain on your knees which can be damaging. The resistance focuses on your ankles puts pressure on your knees when you lift heavy weights on the machine. If you already have experienced knee injuries in the past, stay away from this machine.

Reveal why dumb-bell loaded side bends are an exercise to avoid.