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首页> 外文期刊>Gait & posture >The effects of age on medio-lateral stability during normal and narrow base walking.
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The effects of age on medio-lateral stability during normal and narrow base walking.

机译：年龄对正常和狭窄基础步行过程中外侧稳定性的影响。

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We examined age-related differences in frontal plane stability during performance of narrow base (NB) walking relative to usual gait. A cross-sectional analysis of participants from the Baltimore Longitudinal Study of Aging (BLSA) was performed on data from the BLSA Motion Analysis Laboratory. Participants were 34 adults aged 54-92 without history of falls. We measured step error rates during NB gait and spatial-temporal parameters, frontal plane stability, and gait variability during usual and NB gait. There was a non-significant age-associated linear increase in step error rate (P=0.12) during NB gait. With increasing age, step width increased (P=0.002) and step length and stride velocity decreased (P<0.001), especially during NB gait. Age-associated increases in medio-lateral (M-L) center of mass (COM) peak velocity (P<0.001) and displacement (P=0.005) were also greater during NB compared to usual gait. With increasing age there was greater variability in stride velocity (P=0.001) and step length (P<0.001) under both conditions. Age-associated differences related to M-L COM stability suggest that the quantification of COM control during NB gait may improve identification of older persons at increased falls risk.
机译：我们检查了相对于通常步态的狭窄基础（NB）行走过程中额叶面稳定性与年龄相关的差异。巴尔的摩纵向衰老研究（BLSA）对参与者的横断面分析是根据来自BLSA运动分析实验室的数据进行的。参加者为34位年龄在54-92岁之间且无跌倒史的成年人。我们在常规步态和步态步态中测量了步态步态和时空参数，额叶面稳定性以及步态变异性的步错率。在NB步态期间，与步长错误率的年龄相关的线性增加不显着（P = 0.12）。随着年龄的增长，步幅增加（P = 0.002），步长和步幅速度降低（P <0.001），尤其是在NB步态中。与常规步态相比，NB期间中外侧（M-L）质心（COM）峰值速度（P <0.001）和位移（P = 0.005）的年龄相关增加也更大。随着年龄的增长，两种情况下步幅速度（P = 0.001）和步长（P <0.001）的变异性都更大。与M-L COM稳定性相关的与年龄相关的差异表明，NB步态期间COM控制的量化可能会提高对跌倒风险增加的老年人的识别。

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