Ghandali Elham, Moghadam Saeed Talebian, Hadian Mohammad Reza, Olyaei Gholamreza, Jalaie Shohreh, Sajjadi Elaheh
Physical Therapy Department, School of Rehabilitation, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Physical Therapy Department, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
J Bodyw Mov Ther. 2017 Jul;21(3):594-598. doi: 10.1016/j.jbmt.2016.09.001. Epub 2016 Sep 10.
A few studies have examined the effect of Tai Chi on balance in elder patients with knee osteoarthritis (OA). The aim of this study was to determine the balance measures in elder patients with knee OA after Tai Chi exercises. For this purpose 14 females and 6 males with knee OA were chosen. Area and mean velocity of the center of pressure movements (CoP) were measured by force plate in standing positions (on foam and rigid surfaces). The measurements of area and mean velocity of CoP were performed before and after 60 min of Tai Chi sessions (twice a week for 8 weeks). The results showed that the area of CoP in standing position on rigid surface was significantly decreased (P < 0.01) after Tai Chi exercises. Furthermore, the mean velocity of CoP was significantly decreased after Tai Chi exercises on both rigid and foam surfaces (P < 0.001). Our study also indicated that changes in surfaces (rigid and foam) would cause significant differences regarding the area of CoP in standing positions. However, similar findings were not found regarding the mean velocity of CoP. Considering the effects of Tai Chi on mean velocity of CoP, it might be concluded that motor control and postural stability improvements have occurred. Therefore, based on these results, Tai Chi exercises could be recommended for elder patients with knee OA as part of their rehabilitation and physical therapy protocols.
一些研究探讨了太极拳对老年膝骨关节炎（OA）患者平衡能力的影响。本研究的目的是确定老年膝OA患者进行太极拳锻炼后的平衡指标。为此，选取了14名女性和6名男性膝OA患者。通过测力板在站立位（在泡沫和硬表面上）测量压力中心运动（CoP）的面积和平均速度。在进行60分钟太极拳课程前后（每周两次，共8周）测量CoP的面积和平均速度。结果显示，太极拳锻炼后，在硬表面站立位时CoP的面积显著减小（P<0.01）。此外，在硬表面和泡沫表面进行太极拳锻炼后，CoP的平均速度均显著降低（P<0.001）。我们的研究还表明，表面（硬表面和泡沫表面）的变化会导致站立位时CoP面积出现显著差异。然而，在CoP平均速度方面未发现类似结果。考虑到太极拳对CoP平均速度的影响，可以得出运动控制和姿势稳定性得到改善的结论。因此，基于这些结果，太极拳锻炼可作为老年膝OA患者康复和物理治疗方案的一部分予以推荐。
