The Differences in Lower Extremity Joints Energy Dissipation Strategy during Landing between Athletes with Symptomatic Patellar Tendinopathy(PT)and without Patellar Tendinopathy(UPT)  

作　　者：Datao Xu Zhenghui Lu Siqin Shen Gusztáv Fekete Ukadike CUgbolue Yaodong Gu 

机构地区：[1]Faculty of Sports Science,Ningbo University,Ningbo,315211,China [2]Savaria Institute of Technology,Faculty of Informatics,Eötvös Loránd University,Szombathely,9700,Hungary [3]School of Health and Life Sciences,University of the West of Scotland,Scotland,G720LH,UK

出　　处：《Molecular & Cellular Biomechanics》2021年第2期107-118,共12页分子与细胞生物力学（英文）

基　　金：the National Natural Science Foundation of China(81772423);NSFC-RSE Joint Project(81911530253);K.C.Wong Magna Fund in Ningbo University。

摘　　要：Patellar tendinopathy is a clinical symptom of patellar tendons characterized by local pain in the front of the knee joint.It is common among basketball and volleyball players.Patients with patellar tendinopathy may exhibit different landing strategies during landing compared to healthy individuals.The purpose of this study was to compare the differences in lower limb joint energy dissipation(eccentric work)values for the symptomatic patellar tendinopathy(PT)athletes and no patellar tendinopathy(UPT)athletes during single-leg landing.A total of 26(PT:13,UPT:13)semi-professional male basketball and volleyball player’s kinetic data were collected during the landing phases.Joint work was calculated by the integral of joint power over time.In this study,the result showed that the ankle joint means energy dissipation(p<0.001)and total energy dissipation(p<0.001)of PT were significantly greater than UPT.Compared to the UPT athletes,the PT athletes showed smaller knee joint mean energy dissipation(p=0.002)and contribution to total energy dissipation(p<0.001)during the landing stance.Meanwhile,there were no differences in hip joint contribution to total energy dissipation(p=0.523)and lower limb total energy dissipation(p=0.127).A deeper understanding of each joint’s energy dissipation contribution ratio between UPT and PT during landing can provide clues that reveal the biomechanical mechanism of PT athletes landing.Further study should choose a larger sample size to more comprehensively reveal the energy dissipation strategy of PT during landing.

关 键 词：Athletic injury patellar tendinopathy landing task joint eccentric work energy dissipation strategy 

分 类 号：R87[医药卫生—运动医学]