Straight leg raises

Lie on a bed or the floor. Bend the "good" knee and keep the foot on the floor. Keep the injured leg straight. On the injured side, tighten the quadriceps (as above), keep the leg straight, and lift the leg about 18 inches off the floor. Slowly lower the leg back to the bed or floor. Rest as needed. Repeat 10 to 15 times (one set). Perform a total of 3 sets.