The use of an implantable force transducer to measure patellar tendon forces in goats
The use of an implantable force transducer to measure patellar tendon forces in goats
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DOI：
10.1016/0021-9290(95)00036-4
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发表时间：
1996-04-01
影响因子：
2.4
通讯作者：
Butler, DL
中科院分区：
文献类型：
--
作者：
Korvick, DL;Cummings, JF;Butler, DL
用植入式力传感器（IFT）测量成年山羊活动期间的髌骨肌腱（PT）力。记录动物站立、行走和小跑时的PT力、垂直地面反力（VGRF）和速度。收集数据后，对动物实施安乐死，并在体外校准IFT。站立PT力平均为207牛，行走时最大PT力约为800牛，小跑时最大PT力约为1000牛，并且发生在站立中。力从开始时的200牛下降到摆动中期的0牛。每次运动时，PT力随VGRF的增加而增加。体内最大PT应力发生在小跑时，测量值为29 MPa。这项研究证明了IFT在直接测量肌腱力方面的有用性。
Patellar tendon (PT) force was measured during activity with an implantable force transducer (IFT) in adult goats. PT force, vertical ground reaction force (VGRF) and the animal's speed were recorded for standing, walking and trotting. Following data collection, animals were euthanized and the IFT calibrated in vitro. Standing PT force averaged 207 N. Maximum PT force was approximately 800 N for walking and 1000 N for trotting and occurred at mid-stance. PT force dropped from 200 N at toe-off to 0 N by mid-swing. For each activity, the PT force increased with increases in VGRF. Maximum in vivo PT stress occurred during trotting and measured 29 MPa. This study demonstrates the IFT's usefulness in measuring tendon force directly.