Simonsen E B, Dyhre-Poulsen P, Voigt M, Aagaard P, Sjøgaard G, Bojsen-Møller F
Institute of Medical Anatomy Section C, University of Copenhagen, Denmark.
Acta Anat (Basel). 1995;152(2):133-42. doi: 10.1159/000147692.
Joint moments and bone-on-bone forces in the ankle, knee and hip joint were studied in 7 healthy male subjects during unloaded and loaded walking. The subjects walked across a force platform while they were filmed at 200 Hz. Loaded walking was examined at 10 and 20 kg load carried symmetrically in the hands. Peak joint moments and peak bone-on-bone forces increased from unloaded to loaded walking for the ankle and hip joint (p < 0.05). The lowest bone-on-bone forces were found at the ankle joint (3,318 +/- 390 N) during unloaded walking and the highest at the hip joint (6,399 +/- 1,517 N) during 20 kg loading. Expressed relative to body weight (BW) these values corresponded to 4.2 +/- 0.50 and 8.0 +/- 1.78 BW). However, the individual values showed that 2 of the 7 subjects differed remarkably from the other 5, especially with respect to the hip joint loadings. During loaded walking (20 kg) these 2 subjects showed 14.4 and 15.1 BW peak compression force in the hip joint while the remaining subjects were all below 6.3 BW, which could be explained by the 2 subjects' low ankle joint moments and higher knee and hip joint moments. Apparently, a total 'leg moment' formed by the three major joints is required to support the body and maintain the locomotion, although the relative contribution from each joint can differ among individuals. The peak joint moments were the most dominant contributor to the peak bone-on-bone forces. Therefore, it is concluded that interindividual differences in walking style can lead to pronounced differences in peak bone-on-bone forces. It remains unclear how these interindividual differences are related to joint degradation.
在7名健康男性受试者进行无负重和负重行走时，对其踝关节、膝关节和髋关节的关节力矩及骨-骨作用力进行了研究。受试者走过一个测力平台，同时以200Hz的频率进行拍摄。负重行走时，受试者双手对称携带10kg和20kg的重物进行测试。踝关节和髋关节从无负重行走至负重行走时，峰值关节力矩和峰值骨-骨作用力均增加（p<0.05）。无负重行走时，踝关节的骨-骨作用力最低（3318±390N），20kg负重时髋关节的骨-骨作用力最高（6399±1517N）。相对于体重（BW），这些数值分别为4.2±0.50和8.0±1.78BW）。然而，个体数据显示，7名受试者中有2名与其他5名差异显著，尤其是在髋关节负荷方面。在负重行走（20kg）时，这2名受试者髋关节的峰值压缩力分别为14.4和15.1BW，而其余受试者均低于6.3BW，这可能是由于这2名受试者踝关节力矩较低，膝关节和髋关节力矩较高所致。显然，尽管每个关节的相对贡献在个体之间可能存在差异，但三个主要关节形成的总“腿部力矩”对于支撑身体和维持运动是必需的。峰值关节力矩是峰值骨-骨作用力的最主要贡献因素。因此，可以得出结论，行走方式的个体差异可导致峰值骨-骨作用力出现显著差异。目前尚不清楚这些个体差异与关节退变之间的关系。
