跳跃距离的对称性适度反映了着地时膝关节生物力学的对称性,但对于受控推进却并非如此。

IF 1.6 Q3 SPORT SCIENCES International Journal of Sports Physical Therapy Pub Date : 2024-08-02 eCollection Date: 2024-01-01 DOI:10.26603/001c.121599
Stefano Di Paolo, Naoaki Ito, Kayla D Seymore, Haraldur B Sigurðsson, Laura Bragonzoni, Stefano Zaffagnini, Lynn Snyder-Mackler, Karin Gravare Silbernagel
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However, it is unclear if the horizontal hop test battery reflects knee function and biomechanics.</p><p><strong>Hypothesis/purpose: </strong>To investigate the correlation between clinical limb symmetry index (LSI) and landing and propulsion knee biomechanics during the hop test battery using markerless motion capture.</p><p><strong>Study design: </strong>Cross-sectional biomechanics laboratory study.</p><p><strong>Methods: </strong>Forty-two participants with and without knee surgery (age 28.0 ± 8.0 years) performed the hop test battery which consisted of a single hop for distance, crossover hop, triple hop, and 6-m timed hop in the order listed. Eight high speed cameras were used to collect simultaneous 3D motion data and Theia 3D (Theia Markerless Inc.) was used to generate 3D body model files. Lower limb joint kinematics were calculated in Visual3D. Correlation (Spearman's ρ) was computed between clinical LSI and symmetry in peak and initial contact (IC) knee flexion angle during propulsion and landing phases of each movement.</p><p><strong>Results: </strong>In the single hop, clinical LSI showed positive correlation with kinematic LSI at peak landing (ρ= 0.39, p=0.011), but no correlation at peak propulsion (ρ= -0.03, p=0.851). In the crossover hop, non-significant correlations were found in both propulsion and landing. In the triple hop, positive correlation was found at peak propulsion (ρ= 0.38, p=0.027), peak landing (ρ= 0.48 - 0.66, p<0.001), and last landing IC (ρ= 0.45, p=0.009). In the timed hop, peak propulsion showed positive correlation (ρ= 0.51, p=0.003).</p><p><strong>Conclusions: </strong>Single hop and triple hop distance symmetry reflected landing biomechanical symmetry better than propulsion symmetry. 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引用次数: 0

摘要

背景:着地时膝关节矢状面生物力学不良已被确定为前十字韧带(ACL)损伤的风险因素。假设/目的:利用无标记运动捕捉技术,研究临床肢体对称指数(LSI)与跳跃测试中着地和推进膝关节生物力学之间的相关性:研究设计:横断面生物力学实验室研究:42名接受和未接受膝关节手术的参与者(年龄为28.0 ± 8.0岁)按照所列顺序进行了跳跃测试,包括单跳距离、交叉跳、三跳和6米计时跳。八台高速摄像机用于收集同步三维运动数据,Theia 3D(Theia Markerless Inc.)下肢关节运动学在 Visual3D 中进行计算。在每个动作的推进和着地阶段,计算临床 LSI 与膝关节屈伸角度峰值和初始接触(IC)角度对称性之间的相关性(Spearman's ρ):在单跳中,临床 LSI 与着地峰值的运动学 LSI 呈正相关(ρ= 0.39,p=0.011),但与推进峰值无相关性(ρ= -0.03,p=0.851)。在交叉跳跃中,推进和着陆均无显著相关性。在三重跳跃中,推进峰值(ρ= 0.38,p=0.027)、着陆峰值(ρ= 0.48 - 0.66,p结论)均呈正相关:单跳和三跳距离对称性比推进对称性更好地反映了着陆生物力学对称性。跳跃测试的差分反映了不对称的膝关节着地生物力学,强调了继续使用跳跃测试作为临床决策的一部分的重要性:3b.
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Hop Distance Symmetry Moderately Reflects Knee Biomechanics Symmetry During Landing But Not For Controlled Propulsions.

Background: Landing with poor knee sagittal plane biomechanics has been identified as a risk factor for Anterior Cruciate Ligament (ACL) injury. However, it is unclear if the horizontal hop test battery reflects knee function and biomechanics.

Hypothesis/purpose: To investigate the correlation between clinical limb symmetry index (LSI) and landing and propulsion knee biomechanics during the hop test battery using markerless motion capture.

Study design: Cross-sectional biomechanics laboratory study.

Methods: Forty-two participants with and without knee surgery (age 28.0 ± 8.0 years) performed the hop test battery which consisted of a single hop for distance, crossover hop, triple hop, and 6-m timed hop in the order listed. Eight high speed cameras were used to collect simultaneous 3D motion data and Theia 3D (Theia Markerless Inc.) was used to generate 3D body model files. Lower limb joint kinematics were calculated in Visual3D. Correlation (Spearman's ρ) was computed between clinical LSI and symmetry in peak and initial contact (IC) knee flexion angle during propulsion and landing phases of each movement.

Results: In the single hop, clinical LSI showed positive correlation with kinematic LSI at peak landing (ρ= 0.39, p=0.011), but no correlation at peak propulsion (ρ= -0.03, p=0.851). In the crossover hop, non-significant correlations were found in both propulsion and landing. In the triple hop, positive correlation was found at peak propulsion (ρ= 0.38, p=0.027), peak landing (ρ= 0.48 - 0.66, p<0.001), and last landing IC (ρ= 0.45, p=0.009). In the timed hop, peak propulsion showed positive correlation (ρ= 0.51, p=0.003).

Conclusions: Single hop and triple hop distance symmetry reflected landing biomechanical symmetry better than propulsion symmetry. Poor scores on the hop test battery reflect asymmetrical knee landing biomechanics, emphasizing the importance of continuing to use the hop test battery as part of clinical decision making.

Level of evidence: 3b.

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来源期刊
CiteScore
2.50
自引率
5.90%
发文量
124
审稿时长
16 weeks
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