负重时踝关节背屈被动活动范围与步态期间踝关节运动学之间的关系

Relationship Between Weightbearing Ankle Dorsiflexion Passive Range of Motion and Ankle Kinematics During Gait.

作者信息

Kang Min-Hyeok, Oh Jae-Seop

出版信息

J Am Podiatr Med Assoc. 2017 Jan;107(1):39-45. doi: 10.7547/14-112.

DOI:10.7547/14-112

PMID:28271931

Abstract

BACKGROUND

Measurement of weightbearing ankle dorsiflexion (DF) passive range of motion (PROM) has been suggested as a way to estimate ankle kinematics during gait; however, no previous study has demonstrated the relationship between ankle DF during gait and ankle DF PROM with knee extension. We examine the relationship between maximum ankle DF during gait and nonweightbearing and weightbearing ankle DF PROM with knee extension.

METHODS

Forty physically active individuals (mean ± SD age, 21.63 ± 1.73 years) participated in this study. Ankle DF PROM with knee extension was measured in the nonweightbearing and weightbearing conditions; maximum ankle DF during gait was assessed using a three-dimensional motion analysis system. The relationship between each variable was calculated using the Pearson product moment correlation coefficient, and the difference in ankle DF PROM between the nonweightbearing and weightbearing conditions was analyzed using a paired t test.

RESULTS

The weightbearing measurement (r = 0.521; P < .001) for ankle DF PROM showed a greater correlation with maximum ankle DF during gait than did the nonweightbearing measurement (r = 0.245; P = .029). Ankle DF PROM was significantly greater in the weightbearing than in the nonweightbearing condition (P < .001) despite a significant correlation between the two measurements (r = 0.402; P < .001).

CONCLUSIONS

These findings indicate that nonweightbearing and weightbearing measurements of ankle DF PROM with knee extension should not be used interchangeably and that weightbearing ankle DF PROM with the knee extended is more appropriate for estimating ankle DF during gait.

摘要

背景

负重时踝关节背屈（DF）被动活动范围（PROM）的测量已被提议作为一种估计步态期间踝关节运动学的方法；然而，此前尚无研究证明步态期间的踝关节DF与膝关节伸展时的踝关节DF PROM之间的关系。我们研究了步态期间最大踝关节DF与膝关节伸展时非负重和负重踝关节DF PROM之间的关系。

方法

40名身体活跃的个体（平均年龄±标准差，21.63±1.73岁）参与了本研究。在非负重和负重条件下测量膝关节伸展时的踝关节DF PROM；使用三维运动分析系统评估步态期间的最大踝关节DF。使用Pearson积差相关系数计算各变量之间的关系，并使用配对t检验分析非负重和负重条件下踝关节DF PROM的差异。

结果

与非负重测量（r = 0.245；P = 0.029）相比，负重时踝关节DF PROM的测量值（r = 0.521；P < 0.001）与步态期间最大踝关节DF的相关性更强。尽管两次测量之间存在显著相关性（r = 0.402；P < 0.001），但负重时踝关节DF PROM显著大于非负重条件下的测量值（P < 0.001）。