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F Brussatis

Publications and source records attributed to F Brussatis.

23 records · Page 2Linked to original sources
PubMedDate not supplied

[Mechanics as a basic physical discipline in orthopedics and traumatology].

Among the various relationships between fields of the clinical medicine and fields of physics, the relationship between orthopaedics and traumatology and mechanics is of a particularly close and manifold nature. We try to present in this contribution a description of the physical principles of mechanics and to give a survey of its various fields of application in orthopaedic and traumatologic basic research.

Biomechanical Phenomena↗
PubMedDate not supplied

[Use of a computer-controlled kinematic-electromyographic motion analysis system to investigate gait patterns of healthy subjects on the level walkway and the treadmill (author's transl)].

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 treadmill certain kinematic events in the time pattern of the gait cycle are shifted towards the beginning of the full stride. Moreover, in the treadmill walk the amplitude of the angular motion of the thigh is diminished in the forward and enhanced in the backward direction, while the angular amplitude of the shank is diminished in either direction. As to the electromyographic results, we found in the treadmill walk a prolonged activity of the gluteus maximus, and adductor magnus, the semitendinosus, and the gastrocnemius muscle. These results show that there may exist significant kinematic and electromyographic differences between the treadmill and the normal level walk. This fact has to be considered whenever a treadmill is considered for gait analytical investigations.

Adult↗
PubMedDate not supplied

Selective changes in size and distribution of fibre types in vastus muscle from cases of different knee joint affections.

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 fibres together show atrophy in those cases which are severely impaired and nearly immobilized. An isolated atrophy of slow twitch fibres was found in three patients suffering from frequent sudden short-lasting pain in the knee joint, although this condition may not be alone the cause for slow twitch fibre atrophy. The mechanisms leading to a selective atrophy of muscle fibre types are not fully understood. Nevertheless, a more clear understanding of the nature of skeletal muscle atrophy brought about by joint affections should be of benefit for a better concept of physiotherapeutical approaches: In fast twitch fibre atrophy maximal short lasting contractions followed by rather long periods of recovery should be performed (30). Slow twitch fibre atrophy should be influenced beneficially by chronic submaximal activity (46), whereas both fibre type atrophy should be treated by a combination of isometric techniques and chronic submaximal activities.

Adolescent↗