Effects of hip joint rotation on the trochanteric force and soft tissue thickness during sideways falls

IF 2.3 4区 医学 Q3 ENGINEERING, BIOMEDICAL
Jongwon Choi , Junwoo Park , Seyoung Lee , Kitaek Lim , Chunghwi Yi , Stephen Robinovitch , Woochol Joseph Choi
{"title":"Effects of hip joint rotation on the trochanteric force and soft tissue thickness during sideways falls","authors":"Jongwon Choi ,&nbsp;Junwoo Park ,&nbsp;Seyoung Lee ,&nbsp;Kitaek Lim ,&nbsp;Chunghwi Yi ,&nbsp;Stephen Robinovitch ,&nbsp;Woochol Joseph Choi","doi":"10.1016/j.medengphy.2025.104436","DOIUrl":null,"url":null,"abstract":"<div><div>We measured the trochanteric soft tissue thickness (TSTT) to determine the force magnitude delivered to the proximal femur (<em>F<sub>trochanteric</sub></em>), and examined how the TSTT and <em>F<sub>trochanteric</sub></em> were affected by hip rotation during sideways falls.</div><div>Twenty individuals participated in pelvis release experiments. Trials were acquired with three hip rotations: 15° external, 0° (neutral), and 15° internal. During trials, kinetics and kinematics of the pelvis and lower extremities were recorded. Outcome variables included the effective stiffness of the pelvis (<em>k</em>), <em>F<sub>trochanteric</sub></em>, TSTT, and force magnitude attenuated by the TSTT (<em>F<sub>attenuation</sub></em>).</div><div>The <em>k</em> and <em>F<sub>trochanteric</sub></em> were associated with hip rotation (<em>F</em>= 5.06, <em>p</em>= 0.011; <em>F</em>= 5.49, <em>p</em>= 0.008, respectively). Both outcome variables were 14 % and 15 % smaller in external compared to neutral and internal rotation, respectively (45.3 versus 52.8 kN/m; 5448 versus 6425 N). However, neither the TSTT nor the <em>F<sub>attenuation</sub></em> was associated with hip rotation (<em>F</em>= 2.92, <em>p</em>= 0.066; <em>F</em>= 2.30, <em>p</em>= 0.114, respectively).</div><div>The <em>F<sub>trochanteric</sub></em> decreased with hip external rotation at impact. This was attributed to decreased pelvis stiffness rather than enhanced protective benefits (i.e., force attenuation) provided by the trochanteric soft tissue. These findings offer valuable insights into the distribution of hip impact forces and may contribute to a better understanding of hip impact biomechanics during falls.</div></div>","PeriodicalId":49836,"journal":{"name":"Medical Engineering & Physics","volume":"146 ","pages":"Article 104436"},"PeriodicalIF":2.3000,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Medical Engineering & Physics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350453325001559","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, BIOMEDICAL","Score":null,"Total":0}
引用次数: 0

Abstract

We measured the trochanteric soft tissue thickness (TSTT) to determine the force magnitude delivered to the proximal femur (Ftrochanteric), and examined how the TSTT and Ftrochanteric were affected by hip rotation during sideways falls.
Twenty individuals participated in pelvis release experiments. Trials were acquired with three hip rotations: 15° external, 0° (neutral), and 15° internal. During trials, kinetics and kinematics of the pelvis and lower extremities were recorded. Outcome variables included the effective stiffness of the pelvis (k), Ftrochanteric, TSTT, and force magnitude attenuated by the TSTT (Fattenuation).
The k and Ftrochanteric were associated with hip rotation (F= 5.06, p= 0.011; F= 5.49, p= 0.008, respectively). Both outcome variables were 14 % and 15 % smaller in external compared to neutral and internal rotation, respectively (45.3 versus 52.8 kN/m; 5448 versus 6425 N). However, neither the TSTT nor the Fattenuation was associated with hip rotation (F= 2.92, p= 0.066; F= 2.30, p= 0.114, respectively).
The Ftrochanteric decreased with hip external rotation at impact. This was attributed to decreased pelvis stiffness rather than enhanced protective benefits (i.e., force attenuation) provided by the trochanteric soft tissue. These findings offer valuable insights into the distribution of hip impact forces and may contribute to a better understanding of hip impact biomechanics during falls.
髋关节旋转对侧落时股骨粗隆力和软组织厚度的影响
我们测量了股骨粗隆软组织厚度(TSTT),以确定传递到股骨近端(股骨粗隆)的力的大小,并检查了侧向跌倒时髋关节旋转对TSTT和股骨粗隆的影响。20人参与骨盆释放实验。试验采用三种髋关节旋转:15°外旋、0°(中性)和15°内旋。在试验期间,骨盆和下肢的动力学和运动学被记录下来。结果变量包括骨盆的有效刚度(k)、股骨粗隆、TSTT和TSTT减弱的力大小(f衰减)。k和股骨粗隆与髋关节旋转相关(F= 5.06, p= 0.011; F= 5.49, p= 0.008)。与中性旋转和内旋转相比,外旋转的两个结果变量分别小14%和15%(45.3对52.8 kN/m; 5448对6425 N)。然而,TSTT和F衰减均与髋关节旋转无关(F= 2.92, p= 0.066; F= 2.30, p= 0.114)。撞击时髋外旋使股骨粗隆减小。这是由于骨盆硬度降低,而不是由于转子软组织提供的保护作用增强(即力衰减)。这些发现为髋关节冲击力的分布提供了有价值的见解,并可能有助于更好地理解跌倒时髋关节撞击的生物力学。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Medical Engineering & Physics
Medical Engineering & Physics 工程技术-工程:生物医学
CiteScore
4.30
自引率
4.50%
发文量
172
审稿时长
3.0 months
期刊介绍: Medical Engineering & Physics provides a forum for the publication of the latest developments in biomedical engineering, and reflects the essential multidisciplinary nature of the subject. The journal publishes in-depth critical reviews, scientific papers and technical notes. Our focus encompasses the application of the basic principles of physics and engineering to the development of medical devices and technology, with the ultimate aim of producing improvements in the quality of health care.Topics covered include biomechanics, biomaterials, mechanobiology, rehabilitation engineering, biomedical signal processing and medical device development. Medical Engineering & Physics aims to keep both engineers and clinicians abreast of the latest applications of technology to health care.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信