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Step 1
Stand about 1 foot behind a straight-back chair. A dining room chair is perfect for this. Make sure the chair back is high enough that you don't have to slump over to comfortably place your hands on it. With your hands on the back of the chair, place your feet a little bit less than shoulder-width apart.
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Step 2
Lift your left foot off the floor behind you to the count of 3. Lifting from the knee, keep your knees parallel with each other. Hold for a second, then lower your foot to the count of 3. Do about 8 to 15 repetitions.
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Step 3
Repeat the exercise with your right leg, after you complete the set with your left leg. Do 8 to 15 repetitions of this knee flexion exercise.
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Step 4
Rest for 2 to 3 minutes and repeat the knee flexion exercise, doing 2 to 3 sets with each leg.
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Step 5
Stop if you begin to feel discomfort of unbalance. It may be helpful to reduce the number of repetitions in each set and increase them as you get stronger.








