1
Sit on a bench or sturdy platform with your torso upright, back supported, and feet hanging freely off the edge. Keep your hands on the bench beside you for stability.
2
Position yourself so that your thighs are parallel to the ground and your knees are bent at approximately 90 degrees at the starting position.
3
Slowly lower your extended leg by allowing the knee to bend naturally, returning toward the starting position with control over 2-3 seconds.
4
Extend your knee fully, straightening your leg completely in front of you while maintaining control. Squeeze the quadriceps at full extension before lowering.