Running and Jumping After Muscle Fatigue in Subjects with a History of Knee Injury: What Are the Acute Effects of Wearing a Knee Brace on Biomechanics?

IF 3.8 3区 医学 Q2 ENGINEERING, BIOMEDICAL
Tobias Heß, Thomas L Milani, Jan Stoll, Christian Mitschke
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引用次数: 0

Abstract

The knee is one of the most frequently injured joints, involving various structures. To prevent reinjury after rehabilitation, braces are commonly used. However, most studies on knee supports focus on subjects with anterior cruciate ligament (ACL) injuries and do not account for muscle fatigue, which typically occurs during prolonged intense training and can significantly increase the risk of injury. Hence, this study investigates the acute effects of wearing a knee brace on biomechanics in subjects with a history of various unilateral knee injuries or pain under muscle fatigue. In total, 50 subjects completed an intense fatigue protocol and then performed counter-movement jumps and running tests on a force plate while tracking kinematics with a marker-based 3D motion analysis system. Additionally, subjects filled out a visual analog scale (VAS) to assess knee pain and stability. Tests were conducted on the injured leg with and without a knee brace (Sports Knee Support, Bauerfeind AG, Zeulenroda-Triebes, Germany) and on the healthy leg. Results indicated that wearing the knee brace stabilized knee movement in the frontal plane, with a significant reduction in maximal medio-lateral knee acceleration and knee abduction moment during running and jumping. The brace also normalized loading on the injured leg. We observed higher maximal knee flexion moments, which were associated with increased vertical ground reaction forces, segment velocities, and knee flexion angles. Subjects reported less pain and greater stability while wearing the knee brace. Therefore, we confirm that wearing a knee brace on the injured leg improves joint biomechanics by enhancing stability and kinematics and reducing pain during running and jumping, even with muscle fatigue. Consequently, wearing a knee brace after a knee joint injury may reduce the risk of reinjury.

有膝关节损伤史受试者肌肉疲劳后的跑跳:戴膝托对生物力学的急性影响是什么?
膝关节是最常受伤的关节之一,涉及多种结构。为了防止康复后的再损伤,通常使用牙套。然而,大多数关于膝关节支架的研究都集中在前交叉韧带(ACL)损伤的受试者身上,并没有考虑到肌肉疲劳,而肌肉疲劳通常发生在长时间的高强度训练中,并且会显著增加受伤的风险。因此,本研究调查了有各种单侧膝关节损伤或肌肉疲劳疼痛史的受试者佩戴膝托对生物力学的急性影响。总共有50名受试者完成了强烈疲劳方案,然后在力板上进行反运动跳跃和跑步测试,同时使用基于标记的3D运动分析系统跟踪运动学。此外,受试者填写视觉模拟量表(VAS)来评估膝关节疼痛和稳定性。在有和没有膝盖支架的受伤腿(运动膝盖支架,Bauerfeind AG, zeulenroda - tribes,德国)和健康腿上进行了测试。结果表明,佩戴护膝稳定了膝关节在额平面的运动,显著降低了跑步和跳跃时膝关节的最大中外侧加速度和膝关节外展力矩。支架还使受伤腿的负荷正常化。我们观察到更高的最大膝关节屈曲力矩,这与增加的垂直地面反作用力、分段速度和膝关节屈曲角度有关。受试者报告说,佩戴膝托时疼痛减轻,稳定性更好。因此,我们证实,在受伤的腿上佩戴膝托可以通过增强稳定性和运动学来改善关节生物力学,减少跑步和跳跃时的疼痛,即使是肌肉疲劳。因此,在膝关节受伤后佩戴护膝可以减少再次受伤的风险。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Bioengineering
Bioengineering Chemical Engineering-Bioengineering
CiteScore
4.00
自引率
8.70%
发文量
661
期刊介绍: Aims Bioengineering (ISSN 2306-5354) provides an advanced forum for the science and technology of bioengineering. It publishes original research papers, comprehensive reviews, communications and case reports. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. All aspects of bioengineering are welcomed from theoretical concepts to education and applications. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. There are, in addition, four key features of this Journal: ● We are introducing a new concept in scientific and technical publications “The Translational Case Report in Bioengineering”. It is a descriptive explanatory analysis of a transformative or translational event. Understanding that the goal of bioengineering scholarship is to advance towards a transformative or clinical solution to an identified transformative/clinical need, the translational case report is used to explore causation in order to find underlying principles that may guide other similar transformative/translational undertakings. ● Manuscripts regarding research proposals and research ideas will be particularly welcomed. ● Electronic files and software regarding the full details of the calculation and experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. ● We also accept manuscripts communicating to a broader audience with regard to research projects financed with public funds. Scope ● Bionics and biological cybernetics: implantology; bio–abio interfaces ● Bioelectronics: wearable electronics; implantable electronics; “more than Moore” electronics; bioelectronics devices ● Bioprocess and biosystems engineering and applications: bioprocess design; biocatalysis; bioseparation and bioreactors; bioinformatics; bioenergy; etc. ● Biomolecular, cellular and tissue engineering and applications: tissue engineering; chromosome engineering; embryo engineering; cellular, molecular and synthetic biology; metabolic engineering; bio-nanotechnology; micro/nano technologies; genetic engineering; transgenic technology ● Biomedical engineering and applications: biomechatronics; biomedical electronics; biomechanics; biomaterials; biomimetics; biomedical diagnostics; biomedical therapy; biomedical devices; sensors and circuits; biomedical imaging and medical information systems; implants and regenerative medicine; neurotechnology; clinical engineering; rehabilitation engineering ● Biochemical engineering and applications: metabolic pathway engineering; modeling and simulation ● Translational bioengineering
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