前十字韧带重建后运动员下楼梯时的下肢时空不对称现象

IF 2 4区 医学 Q3 NEUROSCIENCES
Dario G. Liebermann , Jonas L. Markström , Jonas Selling , Charlotte K. Häger
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引用次数: 0

摘要

方法 我们采用横断面设计,将无症状运动员(对照组,n = 18)与前交叉韧带重建(ACLR)患者(n = 49)分为三组(早期:6 个月,n = 17;中期:6-18 个月,n = 16;晚期:≥18 个月,n = 16)进行比较:6-18个月,n = 16;晚期:≥18个月,n = 16)。我们评估了"结果我们发现,各组间在时间变量上存在显著差异(p ≤ 0.001)。与对照组相比,早期组和中期组(p ≤ 0.05)在第一次双支撑时间上表现出不对称性(受伤腿与未受伤腿相比时间更长),而早期组在所有其他阶段也表现出更长的持续时间,与踩踏腿无关。结论前交叉韧带置换术后早期通常会出现下楼梯的时间不对称,但不是空间不对称;这种不对称可能会持续长达 18 个月,并且可能是关节内和关节间微妙代偿的基础。空间不对称可能需要进一步研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spatiotemporal lower-limb asymmetries during stair descent in athletes following anterior cruciate ligament reconstruction

Purpose

This study evaluated motor control recovery at different times following anterior cruciate ligament reconstruction (ACLR) by investigating lower-limb spatiotemporal symmetry during stair descent performances.

Methods

We used a cross-sectional design to compare asymptomatic athletes (Controls, n = 18) with a group of people with ACLR (n = 49) divided into three time-from-ACLR subgroups (Early: <6 months, n = 17; Mid: 6–18 months, n = 16; Late: ≥18 months, n = 16). We evaluated: “temporal symmetry” during the stance subphases (single-support, first and second double-support) and “spatial symmetry” for hip-knee-ankle intra-joint angular displacements during the stance phase using a dissimilarity index applied on superimposed 3D phase plots.

Results

We found significant between-group differences in temporal variables (p ≤ 0.001). Compared to Controls, both Early and Mid (p ≤ 0.05) showed asymmetry in the first double-support time (longer for their injured vs. non-injured leg), while Early generally also showed longer durations in all other phases, regardless of stepping leg. No statistically significant differences were found for spatial intra-joint symmetry between groups.

Conclusion

Temporal but not spatial asymmetry in stair descent is often present early after ACLR; it may remain for up to 18 months and may underlie subtle intra- and inter-joint compensations. Spatial asymmetry may need further exploration.

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来源期刊
CiteScore
4.70
自引率
8.00%
发文量
70
审稿时长
74 days
期刊介绍: Journal of Electromyography & Kinesiology is the primary source for outstanding original articles on the study of human movement from muscle contraction via its motor units and sensory system to integrated motion through mechanical and electrical detection techniques. As the official publication of the International Society of Electrophysiology and Kinesiology, the journal is dedicated to publishing the best work in all areas of electromyography and kinesiology, including: control of movement, muscle fatigue, muscle and nerve properties, joint biomechanics and electrical stimulation. Applications in rehabilitation, sports & exercise, motion analysis, ergonomics, alternative & complimentary medicine, measures of human performance and technical articles on electromyographic signal processing are welcome.
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