A group of 43 patients rehabilitated after complete hip joint replacement (43 patients) and with central hemiparesis after a cerebrovascular attack (7 patients) was treated by the double blind test method by administration of placebo to 24 patients and carnitine tartarate, 1,5 g/day for a period of 1 month, in 19 patients. The authors evaluated the muscular strenght according to the muscle test, which significantly (p<0,05) improved in weakened muscles, the endurance of the weakened muscles also improved insignificantly. The bohy weight, electrical muscle stimulating parameters, the biochemical serum lipid finding did not change.

        Key words: carnitine, muscle strnght, muscle endurance, electricall muscle stimulation