Muskelaktivitätsmuster bei Patienten nach Poliomyelitis anterior acuta

Abstract

PURPOSE: Following poliomyelitis anterior acuta patients suffer from paralysis of the limbs and trunk. Continuous training of insufficient muscles is necessary, but disorders by overuse of the damaged muscles must be recognised. PATIENTS AND METHODS: Surface - EMG-activity of trunk and lower limb muscles of 26 patients after poliomyelitis anterior acuta were compared with that of 26 healthy persons during standing position and gait: m. multifideus, gluteus medius, obliquus externus et internus, biceps et rectus femoris, vastus medialis et lateralis. RESULTS: In standing position the activity of the m. obliquus internus of control healthy persons (m=18,27 μV) is significantly higher than that of the patients (m=9,97 μV), whereas the muscles of the lower limb in patients have significantly higher activity than in healthy persons. The same results could be occurred during the steps. DISCUSSION: In standing position the patients show lower muscle activity in the trunk, especially in the m. obliquus internus as the control persons, what means that they have no enough muscular capacity. During gait important higher activities could be documented in the patients muscles, because of the repaired increased motor units after poliomyelitis. It could be mentioned that muscles of the lower limb were overused according to their increased motor units. So it is not good to train this insufficient musculature. CONCLUSION: Exercises should be only allowed for muscles without overuse phenomenon, instable extremities need support by orthesis and controlled training of activities of daily living.