Ingemann-Hansen T, Halkjaer-Kristensen J
Scand J Rehabil Med. 1980;12(1):27-31.
Thigh components were estimated by computerized tomography (CT) as well as by anthropometry in two healthy male soccer players (23--29 years), who for 5 weeks had one knee immobilized in a plaster of Paris. The investigations were performed on both thighs just after removal of the cast and after 5 weeks physical training of the inactivated quadriceps muscle. The different components were easily identified on a transverse scan through the middle of the thigh. The quadriceps muscle was 26% smaller after removal of the cast in the inactivated leg as compared with the contralateral leg; no differences were observed in the remaining thigh components. After rehabilitation a specific increase (22%) in the hypotrofic quadriceps muscle was observed, whereas no changes were disclosed in the remaining thigh components. The quadriceps muscle averaged 52% of the lean component in the uninjured thigh, and the subcutaneous part of the total cross-sectional area averaged 15%. The changes in the anthropometrically determined thigh components paralleled those observed by the CT scanning procedure. It is concluded that the loss in the lean thigh volume during immobilization in plaster cast is exclusively due to waste of the quadriceps muscle. CT scanning comprises a new valid tool to study changes in thigh components.
通过计算机断层扫描（CT）以及人体测量法对两名健康男性足球运动员（23 - 29岁）的大腿各部分进行了评估。这两名运动员有一侧膝盖用巴黎石膏固定了5周。在拆除石膏后以及对失活的股四头肌进行5周体育训练后，对双侧大腿进行了检查。在通过大腿中部的横向扫描中，不同的部分很容易识别。与对侧腿相比，失活腿拆除石膏后股四头肌小了26%；其余大腿部分未观察到差异。康复后，萎缩的股四头肌有了特定的增长（22%），而其余大腿部分未发现变化。在未受伤的大腿中，股四头肌平均占瘦组织成分的52%，总横截面积的皮下部分平均占15%。人体测量确定的大腿各部分变化与CT扫描观察到的变化相似。得出的结论是，石膏固定期间大腿瘦组织体积的减少完全是由于股四头肌的萎缩。CT扫描是研究大腿各部分变化的一种新的有效工具。
