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Different knee joint affections are apt to initiate different specific atrophy forms in quadriceps muscle. By a biopsy-technique using the histochemical demonstration of ATPase and succinate dehydrogenase fast twitch fibre atrophy can be correlated with increasing age and a moderate impairment but still ambulatory condition. Fast twitch and slow twitch(More)
A computer-controlled electromyography (EMG) System has been developed for the kinesiologic examination of orthopedic patients. A major objective in the design of the system was its convenient operation in the daily clinical routine. The EMG signals are transduced by specially constructed electrode-preamplifier units and filtered and further amplified in a(More)
A measuring carriage system has been developed in our biomedical motion-analysis laboratory for the continuous optoelectronic measurement of angular coordinates or point coordinates in the sagittal plane of a walking patient. The carriage is automatically driven on a guide rail in parallel with the advancing test subject along a level walkway 14 m in(More)
In an attempt to clarify the question if the level walkway and the treadmill present comparable conditions for analytic examinations of the human gait we investigated in either situation with a computer-controlled motion analysis system some kinematic and electromyographic aspects of the gait pattern of 20 healthy subjects. The results show that on the(More)