If it's more comfortable, and it makes it easier for you to balance, try bending your lower leg. To increase resistance, place your right hand on your thigh, and press down as you lift your leg.
OUTER THIGH LEG LIFTS
1. Lie on your left side with your right knee bent at a right angle to your body. Keep your other leg straight.
2. Bend your left elbow, and rest your head on your left hand.
3. Put your right hand in front of your body for support.
4. Keeping your left leg straight, slowly raise and lower it.
5. Do one set of 15 repetitions. Roll over and repeat with your right leg. Work up to three sets.
For extra resistance, add ankle weights. The weight rule: If you can't do more than 12 reps, the weights are too heavy. If you can do 20 reps easily, the weights are too light.
1. Stand with your feet together, or at hip-width if you need extra balance. Put hands on your hips.
2. Step forward with your left foot, bending your knee and bringing your torso forward. Make sure you keep upper body straight and your left knee straight above your ankle.
3. Move back to your original position, and repeat.
4. Repeat lunge sequence with your right leg.
5. Start with one set of 15 repetitions. Work up to three sets.
TIP: Instead of standing in place, you can walk and lunge with alternate legs. To increase total resistance, try adding hand weights to your lunge routine.