Joint forces in extension of the knee: Analysis of a mechanical model
| Autor: | Gunnar Németh, Hans Ohlsén, Ralph Nisell |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Adult
Male musculoskeletal diseases Anterior cruciate ligament Shear force Isometric exercise Knee Joint Models Biological Tendons Sex Factors Cadaver Humans Medicine Knee Orthopedics and Sports Medicine Joint (geology) Orthodontics Anthropometry business.industry Anatomy musculoskeletal system Patellar tendon Biomechanical Phenomena Radiography medicine.anatomical_structure Moment (physics) Female Surgery business human activities |
| Zdroj: | Acta Orthopaedica Scandinavica. 57:41-46 |
| ISSN: | 0001-6470 |
| DOI: | 10.3109/17453678608993213 |
| Popis: | A two-dimensional model of the tibio-femoral joint was constructed by using the results of cadaver knee dissections together with radiographic landmarks on healthy knees loaded at various angles of flexion. The tibio-femoral compressive force during isometric knee extension had the same magnitude as the patellar tendon force. The tibio-femoral shear force changed direction from posterior at full flexion to anterior when the knee was extended, indicating that high forces may arise in the anterior cruciate was extended, indicating that high forces may arise in the anterior cruciate ligament in the straight knee. Women developed some 20 per cent higher knee joint forces than men for the same extending muscular moment higher knee joint forces than men for the same extending muscular moment, since women's patellar tendon moment arms were found to be shorter. The model presented may be used for quantifying tibio-femoral forces during knee extending activities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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