### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
i m 28yrs from punjab amritsar. i m suffer from polio when i m only 3 years old with reaction of injection in fever. i operater from visakhapatnam in 1998. after operation i walk with caliper. my back lower portion & upper portion of knee are too weak. can i walk properly with treatment.

### output:

Hi dear, I have gone through your question and I understand your concern. I feel very sad to inform that there are currently no effective pharmaceutical treatments that can stop deterioration or reverse the deficits caused by the post polio syn Chat Doctor. However, a number of controlled studies have demonstrated that non fatiguing exercises may improve muscle strength and reduce tiredness. Non fatiguing means, exercise that don't let you fatigue - mild to moderate exercise. My dear friend I want to share here that exercise is safe and effective when carefully prescribed and monitored by experienced health professionals, and you must also consult nearby physiotherapist. Exercise is more likely to benefit those muscle groups that were LEAST affected by polio.  Cardiopulmonary endurance training is usually more effective than strengthening exercises, especially when activities are paced to allow for frequent breaks and strategies are used to conserve energy - means do not fatigue yourself while exercising. Heavy or intense resistive exercise and weight-lifting using polio-affected muscles is not advised, as this can further WEAKEN rather than strengthen these muscles. Hope you find the answer helpful, please do get back for further queries I will be happy to assist you. Please rate 5 stars as you find some benefits with this information, it will ignite me to help more. Wishing your good health. Regards