Frenkel-Toledo Silvi, Giladi Nir, Peretz Chava, Herman Talia, Gruendlinger Leor, Hausdorff Jeffrey M
Department of Physical Therapy, Sackler School of Medicine, Tel-Aviv, Israel.
Mov Disord. 2005 Sep;20(9):1109-14. doi: 10.1002/mds.20507.
Recent reports suggest that external cueing improves stride length and gait speed in Parkinson's disease (PD). The purpose of the present study was to examine the influence of treadmill walking on gait variability. The 36 PD patients (Hoehn and Yahr stage 2--2.5) were compared to 30 controls. Subjects walked three times for 2 minutes each: (1) walking on level ground (unassisted), (2) walking on level ground while using a walker, and (3) walking on a treadmill. Stride time variability and swing time variability were significantly increased in the patients compared to the control subjects when walking on level ground with a walker. In both groups, the use of a walking aid did not significantly affect stride time variability or swing time variability, but the treadmill reduced stride time variability and swing time variability in the patients and in the controls. These results indicate that, during treadmill walking, PD subjects are able to walk with a less variable and more stable gait. Because the treadmill walking speed was set to the gait speed on level ground and because this effect was not seen with a walking aid, we suggest that the treadmill may be acting as an external cue to enhance gait rhythmicity and reduce gait variability.
最近的报告表明，外部提示可改善帕金森病（PD）患者的步幅和步态速度。本研究的目的是探讨跑步机行走对步态变异性的影响。将36例PD患者（Hoehn和Yahr分期为2 - 2.5期）与30名对照者进行比较。受试者各进行3次2分钟的行走：（1）在平地上行走（无辅助），（2）使用助行器在平地上行走，以及（3）在跑步机上行走。与对照者相比，患者在使用助行器在平地上行走时，步幅时间变异性和摆动时间变异性显著增加。在两组中，使用助行器对步幅时间变异性或摆动时间变异性均无显著影响，但跑步机可降低患者和对照者的步幅时间变异性和摆动时间变异性。这些结果表明，在跑步机行走过程中，PD患者能够以变异性较小且更稳定的步态行走。由于跑步机行走速度设定为平地上的步态速度，且这种效果在使用助行器时未观察到，我们认为跑步机可能作为一种外部提示，增强步态节律性并降低步态变异性。
