Engsberg J R, Allinger T L
Human Performance Laboratory, University of Calgary, Alberta, Canada.
Foot Ankle. 1990 Oct;11(2):93-6. doi: 10.1177/107110079001100206.
This study explored the possible function of the talocalcaneal joint during running support to minimize frontal plane rotation of the leg and thereby protect the knee from excessive frontal plane motions. The lower limb was modeled as two rigid segments representing the foot and the leg. The results indicated that for extreme ground-foot angles the talocalaneal joint was able to maintain the knee in a stable position in the frontal plane. It was concluded that the joint may function to minimize frontal plane rotation of the leg and thereby protect the knee from excessive frontal plane motions. The relevance of this function for a below-the-knee-amputee patient lies in the potential for improved prosthetic design.
本研究探讨了距跟关节在跑步支撑过程中的可能功能，以尽量减少腿部在额状面的旋转，从而保护膝关节免受过度的额状面运动影响。下肢被建模为代表足部和腿部的两个刚性节段。结果表明，对于极端的地面-足部角度，距跟关节能够使膝关节在额状面保持稳定位置。得出的结论是，该关节可能起到尽量减少腿部在额状面旋转的作用，从而保护膝关节免受过度的额状面运动影响。该功能对于膝下截肢患者的意义在于改进假肢设计的潜力。
