Accelerometer-Based Step Regularity Is Lower in Older Adults with Bilateral Knee Osteoarthritis.
Accelerometer-Based Step Regularity Is Lower in Older Adults with Bilateral Knee Osteoarthritis.
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DOI：
10.3389/fnhum.2016.00625
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发表时间：
2016
影响因子：
2.9
通讯作者：
Beauchet O
中科院分区：
文献类型：
--
作者：
Barden JM;Clermont CA;Kobsar D;Beauchet O
目的：比较双侧膝关节骨关节炎（OA）老年人队列与年龄和性别匹配的健康膝关节老年人对照组之间步态的规律性和对称性。研究方法：15名（8名女性）膝关节OA老年人（64.7 ± 6.7岁）和15名（8名女性）无疼痛对照（66.1 ± 10.0岁）以自选的舒适速度完成了9分钟步行，同时佩戴一个腰戴式三轴加速计。根据性别比较两组之间的以下步态参数：平均步时、平均步时、步幅和步频（定义为步幅到步幅或步到步模式的一致性）和步态的对称性（定义为步幅和步幅规律性之间的差异），如通过分析垂直方向上的加速度模式的无偏自相关过程所确定的，中外侧和前后方向。结果如下：与对照组相比，膝关节OA老年人在垂直方向（p < 0.05）和前后方向（p < 0.05）上的步伐规律性明显较差。与女性对照组相比，患有膝关节OA的女性的中外侧步伐规律性也显著降低（p < 0.05），而男性之间没有发现差异。结论：结果表明，与年龄相仿的健康膝关节老年人相比，双侧膝关节OA患者的步伐模式规律性不太一致。研究结果表明，未来的研究应调查之间的关系，步的规律性，性别和运动方向，以及这些方法的应用，膝关节骨性关节炎的临床评估。
Purpose: To compare the regularity and symmetry of gait between a cohort of older adults with bilateral knee osteoarthritis (OA) and an age and sex-matched control group of older adults with healthy knees. Methods: Fifteen (8 females) older adults with knee OA (64.7 ± 6.7 years) and fifteen (8 females) pain-free controls (66.1 ± 10.0 years) completed a 9-min. walk at a self-selected, comfortable speed while wearing a single waist-mounted tri-axial accelerometer. The following gait parameters were compared between the two groups according to sex: mean step time, mean stride time, stride and step regularity (defined as the consistency of the stride-to-stride or step-to-step pattern) and the symmetry of gait (defined as the difference between step and stride regularity) as determined by an unbiased autocorrelation procedure that analyzed the pattern of acceleration in the vertical, mediolateral and anteroposterior directions. Results: Older adults with knee OA displayed significantly less step regularity in the vertical (p < 0.05) and anteroposterior (p < 0.05) directions than controls. Females with knee OA were also found to have significantly less mediolateral step regularity than female controls (p < 0.05), whereas no difference was found between males. Conclusion: The results showed that the regularity of the step pattern in individuals with bilateral knee OA was less consistent compared to similarly-aged older adults with healthy knees. The findings suggest that future studies should investigate the relationship between step regularity, sex and movement direction as well as the application of these methods to the clinical assessment of knee OA.
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影响因子：
2.4
作者：
Lindemann, U.;Najafi, B.;Aminian, K.
通讯作者：
Aminian, K.
影响因子：
2.4
作者：
Hartmann, Antonia;Luzi, Susanna;de Bruin, Eling D.
通讯作者：
de Bruin, Eling D.
影响因子：
7
作者：
Baliunas, AJ;Hurwitz, DE;Andriacchi, TP
通讯作者：
Andriacchi, TP
DOI：
10.1016/j.apmr.2013.05.010
发表时间：
2013-11-01
影响因子：
4.3
作者：
Mills, Kathryn;Hettinga, Blayne A.;Ferber, Reed
通讯作者：
Ferber, Reed
影响因子：
2.5
作者：
Kiss, Rita M.
通讯作者：
Kiss, Rita M.