Many people with a history of polio can improve muscle strength and cardiovascular conditioning with an exercise program  . One of the problems that people with Post-Polio Syndrome face is how much exercise they should be doing. We have all been told to conserve our energy. We know that too much exercise will further damage already weak muscles. We also know that if a muscle is not exercised it will loose strength. So what should we be doing.
Determining how much we should do isn't easy. We must learn to recognize fatigue. We must learn which pains mean overworked muscle and which are part of normal aging. We need to pay attention to our bodies and use pain and fatigue as signals. We have to let go of the 'no pain, no gain' philosophy we learned while we were recovering from polio. We must also learn to use how we feel today to assess yesterday's activity and plan for tomorrow. Dr. Agre and Dr. Rogdriquez have shown that polio survivors can assess their own muscle fatigue 
The key to exercise for people with Post-Polio Syndrome is to suit the activity to the amount of damage to the muscle. This damage may be a result of the original polio and from post-polio overuse. Different researchers use different methods of determining just how much a muscle or group of muscles is damaged and what exercises are appropriate  
After consulting with our doctors to assure ourselves that we don't have some disease process other than PPS causing our problems, we must decide how much to do. What can we do when we don't have a Post-Polio Clinic and physicians willing and able to do four limb EMG's? Without using EMG, we can still look at our histories and we can feel how we are doing now. Using this information we can try to set up or get the physiotherapists (many of whom have little or no knowledge of post-polio syndrome) to set up appropriate exercise programs for us. I suggest you try to figure out what each of your limbs should do based on your experience with that limb.
For each limb, ask yourself "What is the most severely involved muscle in this limb?" "is that muscle weak?" and "Am I noticing signs of increasing weakness in that muscle?" Increased pain in the muscle, twitching, decrease in quality of movement, being able to walk shorter distances, having more trouble with stairs, more difficulty standing, muscle wasting, difficulty holding your arm up, driving, dressing and tiring with fewer and fewer repetitions during your regular exercise routine are common signs of increased weakness in a muscle or limb. Do you know of any reasons other than PPS why that muscle may be weak? For example has the muscle been immobilised recently?
A limb that does not have any weakness is classed as no clinical polio  and you can use it like any normal limb. These are the limbs you can use to get a good workout for your heart and lungs (cardiovascular workout). Be active 3 - 4 times a week for at least 20 minutes getting your heart rate up to 60 - 80% of maximum. You can exercise these limbs like normal limbs. It is also sensible to do gradual exercises to maintain strength and flexibility. If you notice any signs of increasing weakness, you must reevaluate your limb and your exercise program for that limb.
If your muscle is mild to moderately weak but shows no sign of increasing weakness, the limb would be classed as clinically stable polio . You can exercise these muscles with care. They should probably not be significantly fatigued. Try exercising 3 times per week for periods of 10 - 20 minutes with frequent rests. Progressive resistance exercises (also called non fatiguing strengthening exercises) with gradually increasing weights may be used to maintain and possibly gain strength. Monitor yourself carefully while you exercise and if you notice any signs of increasing weakness, you must reevaluate your limb and your exercise program for that limb.
If your muscle is severely weak, the limb is probably appropriately classed as severely atrophic polio . Active exercise of the limb is likely impossible. Passive range of motion exercises may be used to maintain flexibility.
If your muscle is weak and showing increasing weakness, ask yourself, "Am I doing too much or too little?" Unless the limb has been immobilized recently (for example, in a cast or on bed rest) you are probably doing too much. The limb should be classed as having clinically unstable polio . You should try decreasing the amount of activity that limb is doing, use energy conservation, and get your rests. Those are the muscles that are being damaged by overuse. You must not fatigue them. It is probably a good idea to stretch to maintain flexibility and range of motion. If the limb has been getting too little activity, you can try a carefully graduated program of non-fatiguing exercises. Monitor yourself carefully while you exercise and if you notice any signs of increasing weakness, reevaluate your exercise program for that limb.
Whatever your exercise program, continue to make changes to help you conserve energy. Pay attention to fatigue and rest when you are tired (before you are exhausted). If you are overweight you need to lose weight. Dr. Peach and Dr. Olejnik found that patients who successfully control the factors responsible for neuromuscular overuse did not lost muscle strength .
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Document Reference: <URL:http://www.zynet.co.uk/ott/polio/lincolnshire/library/usa/exercise.html>
Created: 28th January 1997
Last modification: 29th August 1999