Jansen M O, van den Bogert A J, Riemersma D J, Schamhardt H C
Biomechanics Research Group, Faculty of Veterinary Medicine, University of Utrecht, The Netherlands.
Acta Anat (Basel). 1993;146(2-3):162-7. doi: 10.1159/000147439.
The load distribution over tendinous structures in the equine forelimb was studied by computing forces from in vivo signals of implanted liquid-metal strain gauges in 5 ponies. For validation, these tendon forces were converted to joint moments, which were summed and compared to the calculated joint moments caused by the ground reaction force. Mean peak forces per kilogram body weight (n = 5) amounted to 5.2 N/kg for the superficial digital flexor tendon, 3.8 N/kg for the deep digital flexor tendon, 7.3 N/kg for the distal accessory (check) ligament and 8.4 N/kg for the third interosseous muscle (suspensory ligament). The maximal moment exerted by the tendons about the fetlock joint differed 11 +/- 7% (average +/- SD, n = 5) from the maximal ground reaction force moment, which difference amounted to 17 +/- 15% for the coffin joint moments. These differences appeared to result to a substantial extent from errors in the moment arms. Therefore, the computed tendon forces were considered to be sufficiently reliable.
通过计算5匹小马体内植入的液态金属应变仪的信号所产生的力，研究了马前肢腱性结构上的负荷分布。为进行验证，将这些肌腱力转换为关节力矩，对其进行求和，并与由地面反作用力引起的计算关节力矩进行比较。每千克体重的平均峰值力（n = 5）：指浅屈肌腱为5.2 N/kg，指深屈肌腱为3.8 N/kg，远侧副韧带（籽骨韧带）为7.3 N/kg，第三骨间肌（悬韧带）为8.4 N/kg。肌腱围绕球节施加的最大力矩与最大地面反作用力矩相差11±7%（平均值±标准差，n = 5），对于蹄关节力矩，该差值为17±15%。这些差异似乎在很大程度上是由力臂误差导致的。因此，计算得到的肌腱力被认为具有足够的可靠性。
