多方向切割动作中二维额状面膝关节测量的同时效度和信度
Concurrent Validity and Reliability of Two-dimensional Frontal Plane Knee Measurements during Multi-directional Cutting Maneuvers.
作者信息
Irawan Dimas Sondang, Huoth Chantheng, Sinsurin Komsak, Kiratisin Pongthanayos, Vachalathiti Roongtiwa, Richards Jim
机构信息
Biomechanics and Sports Research unit, Faculty of Physical Therapy, Mahidol University.
Musculoskeletal Physical Therapy Research unit, Faculty of Physical Therapy, Mahidol University.
出版信息
Int J Sports Phys Ther. 2022 Feb 2;17(2):148-155. doi: 10.26603/001c.31651. eCollection 2022.
BACKGROUND
Excessive knee valgus has been strongly suggested as a contributing key factor for anterior cruciate ligament (ACL) injuries. Three-dimensional (3D) motion analysis is considered the "gold standard" to assess joint kinematics, however, this is difficult for on-field assessments and for clinical setting.
PURPOSE
To investigate the concurrent validity of 2D measurements of knee valgus angle during cutting in different directions and to explore intra-rater and inter-rater reliability of the 2D measurements.
STUDY DESIGN
Descriptive laboratory study.
METHOD
Seven recreational soccer players participated in this study. Participants performed three trials of cutting maneuvers in three different directions (30º, 60º, and 90º) with the dominant leg. Cutting maneuvers were recorded simultaneously with a video camera and a Vicon motion capture system. Knee valgus angle from 2D and 3D measurements at initial contact and at peak vertical ground reaction force (vGRF) were extracted. The Pearson's correlation was used to explore the relationship between the 2D and 3D measurements, and reliability of the 2D measurements were performed using intraclass correlation coefficients (ICC).
RESULT
Significant correlations between 2D and 3D knee valgus measurements were noted for 60º ( = 0.45) and 90º ( = 0.77) cutting maneuvers at initial contact. At peak vGRF, significant correlations between 2D and 3D knee valgus measurements were noted for 30º, 60º, and 90º cutting maneuvers (r=0.45, r=0.74, r=0.78), respectively. Good-to-excellent intra-rater and inter-rater reliability of the 2D knee valgus measurements was observed during cutting in all directions (ICCs: 0.821-0.997).
CONCLUSION
Moderate-to-strong correlation between 2D and 3D knee valgus measurements during 60°-90° cutting maneuvers, and good-to-excellent intra-rater and excellent inter-rater reliability for the 2D measurements in the present study supports the use of 2D knee valgus measurements in the evaluation of targeted interventions, although the limitations of examining cutting maneuvers using 2D measurement in complex movement still need to be considered.
LEVEL OF EVIDENCE
背景
强烈提示过度膝外翻是前交叉韧带（ACL）损伤的一个关键促成因素。三维（3D）运动分析被认为是评估关节运动学的“金标准”，然而，这对于现场评估和临床环境来说具有难度。
目的
研究不同方向切入时膝外翻角度二维测量的同时效度，并探讨二维测量的评分者内信度和评分者间信度。
研究设计
描述性实验室研究。
方法
七名业余足球运动员参与了本研究。参与者用优势腿在三个不同方向（30°、60°和90°）进行三次切入动作试验。切入动作同时用摄像机和Vicon运动捕捉系统进行记录。提取初始接触和垂直地面反作用力（vGRF）峰值时二维和三维测量的膝外翻角度。采用Pearson相关性分析来探讨二维和三维测量之间的关系，并使用组内相关系数（ICC）对二维测量的信度进行分析。
结果
在初始接触时，60°（r = 0.45）和90°（r = 0.77）切入动作的二维和三维膝外翻测量之间存在显著相关性。在vGRF峰值时，30°、60°和90°切入动作的二维和三维膝外翻测量之间分别存在显著相关性（r = 0.45、r = 0.74、r = 0.78）。在所有方向的切入动作中，二维膝外翻测量的评分者内信度和评分者间信度均为良好至优秀（ICC：0.821 - 0.997）。
结论
在60° - 90°切入动作中，二维和三维膝外翻测量之间存在中度至高度相关性，并且本研究中二维测量的评分者内信度良好至优秀、评分者间信度优秀，这支持在评估针对性干预措施时使用二维膝外翻测量，尽管在复杂运动中使用二维测量来检查切入动作的局限性仍需考虑。
证据水平
3级。
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