Exploring the Influence of Quadriceps Peak Torque and Rate of Torque Development on Running Mechanics After Anterior Cruciate Ligament Reconstruction.

IF 2.7 2区医学 Q1 SPORT SCIENCES

Sports Health-A Multidisciplinary Approach Pub Date : 2025-05-19 DOI:10.1177/19417381251338283

Amit M Gohil, Gregory S Hawk, Darren L Johnson, Christopher S Fry, Brian Noehren

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Abstract

Background: After anterior cruciate ligament reconstruction (ACLR), chronic changes in knee joint biomechanics during higher level tasks, such as running, may negatively impact long-term knee joint health. Among the factors that contribute to these chronic changes, the influence of quadriceps strength on knee joint biomechanics during running is not well understood.

Hypothesis: Higher involved limb quadriceps strength (peak torque and rate of torque development [RTD]) and limb symmetry index (LSI) will be positively associated with greater peak knee flexion angle and peak knee extensor moment during running.

Study design: Cross-sectional study.

Level of evidence: Level 3.

Methods: Peak knee extensor moment and peak knee flexion angle were analyzed during the stance phase of running, 6 months following ACLR (n = 26; 18 female participants; age, 19 ± 5.0 years). Involved limb quadriceps strength and LSI were calculated for peak torque and RTD. Linear regression models were used to analyze the relationship between involved limb and LSI values of quadriceps peak torque and RTD to peak knee flexion angle and peak knee extensor moment.

Results: Quadriceps peak torque (R² = 0.37; P < .01) and RTD (R² = 0.31, P < .01) each had a positive relationship to peak knee extensor moment, but not peak knee flexion angle. Quadriceps peak torque and RTD LSI were not associated with peak knee flexion angle or peak knee extensor moment (P > .20).

Conclusions: Quadriceps peak torque and RTD are positively associated with running kinetics 6 months after ACLR. Peak torque and RTD LSI were not associated with running mechanics after ACLR.

Clinical relevance: Quadriceps peak torque and rate of torque development are positively associated with running mechanics after ACLR. Clinicians should consider objective assessments of quadriceps strength before initiating running after ACLR.

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探讨前交叉韧带重建后股四头肌峰值扭矩和扭矩发展速率对跑步力学的影响。

背景：前交叉韧带重建术（ACLR）后，在高水平任务（如跑步）中膝关节生物力学的慢性变化可能对膝关节的长期健康产生负面影响。在导致这些慢性变化的因素中，跑步时股四头肌力量对膝关节生物力学的影响尚不清楚。假设：更高的四肢四头肌强度（峰值扭矩和扭矩发展速率[RTD]）和肢体对称指数（LSI）与跑步时更大的峰值膝关节屈曲角和峰值膝关节伸肌力矩呈正相关。研究设计：横断面研究。证据等级：三级。方法：分析ACLR术后6个月站立阶段的膝关节伸肌力矩峰值和膝关节屈曲角峰值(n = 26；女性18名；年龄19±5.0岁)。计算受累肢体股四头肌强度和LSI的峰值扭矩和RTD。采用线性回归模型分析受累肢体、股四头肌峰值扭矩LSI值和RTD值与膝关节屈曲角峰值和膝关节伸肌力矩峰值的关系。结果：股四头肌峰值扭矩(R2 = 0.37；P < 0.01)和RTD （R2 = 0.31, P < 0.01）与膝关节伸力矩峰值呈正相关，而与膝关节屈曲角峰值无关。股四头肌峰值扭矩和RTD LSI与膝关节屈曲角峰值或膝关节伸肌力矩峰值无关（P < 0.05）。结论：ACLR术后6个月，股四头肌峰值扭矩和RTD与跑步动力学呈正相关。峰值扭矩和RTD LSI与ACLR后的跑步力学无关。临床相关性：股四头肌峰值扭矩和扭矩发展率与ACLR后的跑步力学呈正相关。临床医生在ACLR后开始跑步前应考虑对股四头肌力量进行客观评估。

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

Sports Health-A Multidisciplinary Approach Medicine-Orthopedics and Sports Medicine

CiteScore

6.90

自引率

9.10%

发文量

101

期刊介绍： Sports Health: A Multidisciplinary Approach is an indispensable resource for all medical professionals involved in the training and care of the competitive or recreational athlete, including primary care physicians, orthopaedic surgeons, physical therapists, athletic trainers and other medical and health care professionals. Published bimonthly, Sports Health is a collaborative publication from the American Orthopaedic Society for Sports Medicine (AOSSM), the American Medical Society for Sports Medicine (AMSSM), the National Athletic Trainers’ Association (NATA), and the Sports Physical Therapy Section (SPTS). The journal publishes review articles, original research articles, case studies, images, short updates, legal briefs, editorials, and letters to the editor. Topics include: -Sports Injury and Treatment -Care of the Athlete -Athlete Rehabilitation -Medical Issues in the Athlete -Surgical Techniques in Sports Medicine -Case Studies in Sports Medicine -Images in Sports Medicine -Legal Issues -Pediatric Athletes -General Sports Trauma -Sports Psychology