A proper squat

A squat done correctly is a great exercise. But faulty squats can lead to serious injuries.

Here are the basics:

1. Keep legs a shoulder-width apart - you have to balance.
2. You bend your knees until they reach a right angle.
3. You have to bend your knees in a straight line above your feet.
4. During a knee bend, you draw back your bottom - the knees cannot extend past the line of your toes.