Longitudinal Associations of Social Support and Gait Speed Decline in Aging.
Longitudinal Associations of Social Support and Gait Speed Decline in Aging.
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社会支持和步态速度随着衰老而下降的纵向关联。
DOI：
10.1093/gerona/glad250
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发表时间：
2024
期刊：
影响因子：
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通讯作者：
Blumen,HelenaM
中科院分区：
文献类型：
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作者：
Pollak,Chava;Verghese,Joe;Blumen,HelenaM
社会支持可以预测老年人的功能和认知能力下降。然而，社会支持和步态速度下降之间的联系-一个功能性的生命体征-还没有得到很好的理解。本研究探讨了社会支持和步态速度下降之间的关联aging.MethodsSocial支持和步态数据从542老年人无痴呆症进行了检查（平均年龄76.1 ± 6.5岁）。 基线情感支持，有形的支持，深情的支持，积极的社会互动，以及来自医疗结果研究社会支持调查的整体支持是感兴趣的预测因素。简单（正常步速行走）和复杂（行走时背诵字母表的交替字母）步态速度（cm/s）的年度变化是关注的结果。线性混合效应模型研究社会支持和步态速度下降之间的关联，调整后的性别，种族，抑郁症状，整体认知，和comorbidities. ResultsThe平均每年变化的步态速度为1.8厘米/秒，在简单的步行和1.13厘米/秒，在复杂的步行。在中位随访3年的时间内，Twestern支持是唯一一种预测简单和复杂步态速度下降的社会支持类别。步态速度的年下降率为0.51 cm/s（p = 0.008，95%置信区间[CI] 0.13，0.89）和0.58 cm/s（p = 0.007，CI 0.16，1.0），在简单和复杂的步行过程中，低有形的支持比高有形的支持，分别为0.58 cm/s（p = 0.007，CI 0.16，1.0）。 需要进一步研究来检查观察到的关联背后的机制以及干预的潜力。
BackgroundSocial support predicts functional and cognitive decline in aging. Yet, the associations between social support and gait speed decline—a functional vital sign—are not well understood. This study examined associations between social support and gait speed decline in aging.MethodsSocial support and gait data from 542 older adults without dementia were examined (mean age 76.1 ± 6.5 years). Baseline emotional support, tangible support, affectionate support, positive social interactions, and overall support from the Medical Outcomes Study Social Support Survey were the predictors of interest. Annual change in simple (normal pace walking) and complex (walking while reciting alternate letters of the alphabet) gait speed (cm/s) were the outcomes of interest. Linear mixed effects models examined associations between social support and gait speed decline, after adjusting for gender, race, depressive symptoms, overall cognition, and comorbidities.ResultsThe mean annual change in gait speed was 1.8 cm/s during simple walking and 1.13 cm/s during complex walking. Tangible support was the only category of social support that predicted decline in simple and complex gait speed over a median follow-up of 3 years. The annual decline in gait speed was 0.51 cm/s (p= .008, 95% confidence intervals [CI] 0.13, 0.89) and 0.58 cm/s (p= .007, CI 0.16, 1.0) greater among those with low tangible support than in those with high tangible support during simple and complex walking, respectively.ConclusionsTangible support is a potentially modifiable risk factor for gait speed decline. Further study is needed to examine mechanisms behind the observed associations and the potential for intervention.