Cappozzo A
J Biomech. 1983;16(4):265-77. doi: 10.1016/0021-9290(83)90134-3.
The intersegmental force and couple exchanged between upper and lower body across a transverse section passing through the fourth lumbar vertebra were estimated during level walking on a straight line at speeds ranging from 0.99 to 2.23 ms-1. This was done using 3-D kinematic information relative to the head, upper limbs, and upper torso, obtained through a stereophotogrammetric technique, and the relevant inertial parameters obtained using anthropometric measurements and estimation techniques provided in the literature. Twenty walking cycles of five normal adult male subjects were analysed. The intersegmental force and couple components are presented as referenced to both a laboratory and pelvic set of axes. Using these results some considerations are made concerning the variations which the overall trunk muscles effort undergoes because of mean walking speed changes. The muscular action on the trunk is inferred from the intersegmental couple components. The various factors that contribute to the build-up of the intersegmental force and couple are analysed and their relative importance assessed.
在直线上以0.99至2.23米/秒的速度进行水平行走期间，估算了通过第四腰椎的横截面上上下半身之间交换的节段间力和力偶。这是通过立体摄影测量技术获得的相对于头部、上肢和上半身的三维运动学信息，以及使用文献中提供的人体测量和估算技术获得的相关惯性参数来完成的。分析了五名正常成年男性受试者的20个步行周期。节段间力和力偶分量以实验室坐标系和骨盆坐标系为参考进行呈现。利用这些结果，对由于平均步行速度变化而导致的整体躯干肌肉用力的变化进行了一些思考。从节段间力偶分量推断出对躯干的肌肉作用。分析了导致节段间力和力偶形成的各种因素，并评估了它们的相对重要性。
