使用植入式力传感器测量山羊髌腱力。

The use of an implantable force transducer to measure patellar tendon forces in goats.

作者信息

Korvick D L, Cummings J F, Grood E S, Holden J P, Feder S M, Butler D L

机构信息

Noyes-Giannestras Biomechanics Laboratories, Department of Aerospace Engineering and Engineering Mechanics, University of Cincinnati, OH 45221, USA.

出版信息

J Biomech. 1996 Apr;29(4):557-61. doi: 10.1016/0021-9290(95)00036-4.

DOI:10.1016/0021-9290(95)00036-4

PMID:8964786

Abstract

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.

摘要

在成年山羊活动期间，使用植入式力传感器（IFT）测量髌腱（PT）力。记录站立、行走和小跑时的PT力、垂直地面反作用力（VGRF）以及动物的速度。数据收集完成后，对动物实施安乐死，并在体外对IFT进行校准。站立时PT力平均为207牛。行走时PT力最大值约为800牛，小跑时为1000牛，且均出现在 stance 中期。PT力在离地时从200牛降至摆动中期的0牛。对于每种活动，PT力随VGRF的增加而增加。体内PT应力最大值出现在小跑期间，为29兆帕。本研究证明了IFT在直接测量肌腱力方面的实用性。