Department of Physical Medicine and Rehabilitation, Montefiore Medical Center, Albert Einstein College of Medicine, 110 East 210th Street, Bronx, NY 10467, United States.
The Division of Cognitive and Motor Aging, Department of Neurology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY, United States.
Gait Posture. 2014 Sep;40(4):676-81. doi: 10.1016/j.gaitpost.2014.07.023. Epub 2014 Aug 12.
The aim of this study was to establish quantitative norms for trunk sway during walking for older male and female ambulatory adults at different age groups (65-70, 71-75, 76-80, ≥81). We also assessed the relationship between dynamic trunk sway and gait velocity in older individuals with clinically normal or abnormal gaits. Trunk sway in medio-lateral (roll) and antero-posterior (pitch) planes was measured using a body-mounted gyroscope (SwayStar) during walking on a 4.5 m long instrumented walkway. Of the 284 older adults (mean age 76.8, 54.6% women) in this sample, the mean ± SD value of roll and pitch angles were 6.0 ± 2.0° and 6.7 ± 2.2° respectively. Older women showed significantly greater trunk sway in both roll and pitch angles than older men (p<0.01). In both men and women, there was no significant association of roll angle with age although gait velocity decreased with increasing age. The relationship between roll angle and gait velocity was U-shaped for the overall sample. Among the subgroup with clinically normal gait, increased roll angle was associated with increased gait velocity (p<0.001). However, there was no significant relationship between roll angle and gait velocity among the subgroup with abnormal gait. Therefore, the relationship between medio-lateral trunk sway and gait velocity differs depending on whether gait is clinically normal. We conclude that trunk sway during walking should be interpreted with consideration of both gait velocity and presence of gait abnormality in older adults.
本研究旨在为不同年龄组（65-70、71-75、76-80、≥81 岁）的老年男性和女性步行者建立躯干摆动的定量标准。我们还评估了动态躯干摆动与步态速度之间的关系，这些个体的步态在临床上是正常的还是异常的。使用贴在身体上的陀螺仪（SwayStar）在 4.5 米长的仪器化步道上行走时，测量了中侧（滚转）和前-后（俯仰）平面的躯干摆动。在这个样本中，284 名老年人（平均年龄 76.8 岁，54.6%为女性）中，滚动和俯仰角度的平均值±标准差分别为 6.0±2.0°和 6.7±2.2°。与男性相比，老年女性在滚动和俯仰角度的躯干摆动明显更大（p<0.01）。在男性和女性中，尽管随着年龄的增长步态速度降低，但滚动角度与年龄没有显著关联。对于整个样本，滚动角度与步态速度之间的关系呈 U 形。在具有临床正常步态的亚组中，滚动角度增加与步态速度增加相关（p<0.001）。然而，在具有异常步态的亚组中，滚动角度与步态速度之间没有显著关系。因此，中侧躯干摆动与步态速度之间的关系取决于步态是否在临床上是正常的。我们的结论是，在老年人中，行走时的躯干摆动应考虑步态速度和步态异常的存在来进行解释。
