Association of the center of pressure position, trunk and lower limb joint kinematics with knee extensor moment during single-leg squatting after anterior cruciate ligament reconstruction

IF 1.4 3区医学 Q4 ENGINEERING, BIOMEDICAL

Clinical Biomechanics Pub Date : 2025-09-08 DOI:10.1016/j.clinbiomech.2025.106669

Masato Chijimatsu , Rui Henmi , Hiroko Yokoyama , Takeshi Hoshi , Gai Maeda , Yuka Kimura , Yasuyuki Ishibashi , Eiichi Tsuda

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引用次数: 0

Abstract

Background

Reduced knee extensor moment after anterior cruciate ligament reconstruction is associated with quadriceps weakness, increased risk of second anterior cruciate ligament injuries, and early onset of knee osteoarthritis. This study investigated the association between the knee extensor moment, anterior-posterior center of pressure, and trunk and lower limb joint angles during single-leg squatting following anterior cruciate ligament reconstruction.

Methods

Twenty-one patients who underwent anterior cruciate ligament reconstruction performed a single-leg squatting with both legs. Regression analyses were performed to examine the association between the knee extensor moment, anterior-posterior center of pressure, and trunk and lower limb joint angles, all of which were measured using a 3-dimensional motion analysis system.

Findings

The knee extensor moment was predicted by the anterior-posterior center of pressure in the involved limb (P = 0.038, R² = 0.208). The knee extensor moment was significantly predicted by the knee flexion angle (involved: P = 0.003, R² = 0.373; uninvolved: P < 0.001, R² = 0.557) and ankle dorsiflexion angle (involved: P = 0.035, R² = 0.214; uninvolved: P < 0.001, R² = 0.554). The anterior-posterior center of pressure and ankle dorsiflexion angle significantly predicted the knee extensor moment in the involved limb in multivariate regression analysis (P = 0.006, model R² = 0.429).

Interpretation

The knee extensor moment was associated with the anterior-posterior center of pressure, knee flexion angle, and ankle dorsiflexion angle. Evaluating these parameters may enhance our understanding of the knee extensor moment during single-leg squatting after anterior cruciate ligament reconstruction in a clinical setting.

查看原文本刊更多论文

前交叉韧带重建后单腿深蹲时压力中心位置、躯干和下肢关节运动学与膝关节伸肌力矩的关系

背景：前交叉韧带重建后膝关节伸肌力矩减小与股四头肌无力、第二前交叉韧带损伤风险增加和膝骨关节炎早发有关。本研究探讨了前交叉韧带重建后单腿深蹲时膝关节伸肌力矩、前后压力中心、躯干和下肢关节角度之间的关系。方法：21例行前交叉韧带重建术的患者采用双下肢单腿下蹲。采用回归分析来检验膝关节伸肌力矩、前后压力中心和躯干和下肢关节角度之间的关系，所有这些都是使用三维运动分析系统测量的。结果：膝关节伸肌力矩可由受累肢体的前后压力中心预测（P = 0.038, R2 = 0.208）。膝关节屈曲角度（累及：P = 0.003, R2 = 0.373；未累及：P 2 = 0.557）和踝关节背屈角度（累及：P = 0.035, R2 = 0.214；未累及：P 2 = 0.554）显著预测膝关节伸肌力矩。多因素回归分析显示，前后压力中心和踝关节背屈角能显著预测受累肢体的膝关节伸肌力矩（P = 0.006，模型R2 = 0.429）。解释：膝关节伸力矩与前后压力中心、膝关节屈曲角度和踝关节背屈角度有关。评估这些参数可以增强我们对临床前交叉韧带重建后单腿深蹲时膝关节伸肌力矩的理解。

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

Clinical Biomechanics 医学-工程：生物医学

CiteScore

3.30

自引率

5.60%

发文量

189

审稿时长

12.3 weeks

期刊介绍： Clinical Biomechanics is an international multidisciplinary journal of biomechanics with a focus on medical and clinical applications of new knowledge in the field. The science of biomechanics helps explain the causes of cell, tissue, organ and body system disorders, and supports clinicians in the diagnosis, prognosis and evaluation of treatment methods and technologies. Clinical Biomechanics aims to strengthen the links between laboratory and clinic by publishing cutting-edge biomechanics research which helps to explain the causes of injury and disease, and which provides evidence contributing to improved clinical management. A rigorous peer review system is employed and every attempt is made to process and publish top-quality papers promptly. Clinical Biomechanics explores all facets of body system, organ, tissue and cell biomechanics, with an emphasis on medical and clinical applications of the basic science aspects. The role of basic science is therefore recognized in a medical or clinical context. The readership of the journal closely reflects its multi-disciplinary contents, being a balance of scientists, engineers and clinicians. The contents are in the form of research papers, brief reports, review papers and correspondence, whilst special interest issues and supplements are published from time to time. Disciplines covered include biomechanics and mechanobiology at all scales, bioengineering and use of tissue engineering and biomaterials for clinical applications, biophysics, as well as biomechanical aspects of medical robotics, ergonomics, physical and occupational therapeutics and rehabilitation.