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Trunk sway during walking among older adults: Norms and correlation with gait velocity

机译：老年人行走过程中的躯干摇摆：规范和步态速度的相关性

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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.
机译：这项研究的目的是为不同年龄段（65-70、71-75、76-80，> 81）的成年男性和女性成年男子步行时躯干摇摆建立量化标准。我们还评估了具有正常或异常步态的老年人的动态躯干摇摆与步态速度之间的关系。在4.5 m长的仪器人行道上行走时，使用车载陀螺仪（SwayStar）测量了中外侧（侧倾）和前后（俯仰）平面中的躯干摇摆。在该样本的284位老年人中（平均年龄76.8，女性为54.6％），侧倾角和俯仰角的平均值±标准差分别为6.0±2.0°和6.7±2.2°。老年妇女在侧倾角和俯仰角上的躯干摇摆明显大于老年男性（p <0.01）。在男性和女性中，尽管步态速度随着年龄的增长而降低，但侧倾角与年龄没有显着相关性。整个样本的侧倾角与步态速度之间的关系呈U形。在临床上步态正常的亚组中，侧倾角增加与步态速度增加相关（p <0.001）。但是，在步态异常的亚组中，侧倾角与步态速度之间没有显着关系。因此，根据步态在临床上是否正常，中外侧躯干摇摆与步态速度之间的关系会有所不同。我们得出结论，在步行过程中躯干摇摆应同时考虑步态速度和老年人步态异常的存在。

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