- Stand up, feet shoulder-width apart. Use one arm to hold a weight against your body and the other to hold yourself to a stationary object. Put yourself on your toes. This is the starting position.
- Bend and advance your knees and at the same time, lean your upper body backwards. The upper body (from the knees to the neck) should stay straight. You should feel a good contraction in your quadriceps, but no knee pain.
- Return to the starting position.
This exercise should be avoided if you have knee problems. Also make sure there is nothing behind you in case you lose your balance, so nothing will hit your head or so you won't hurt yourself.
