Falls and Balance Research Group, Prince of Wales Medical Research Institute, University of New South Wales, Sydney, Australia.
Aging Clin Exp Res. 2011 Jun;23(3):196-201. doi: 10.1007/BF03324960.
The Timed up and Go Test (TUG) is recommended as a screening tool for fall risk in older people. It is assumed that this general mobility test is underpinned by physiological factors such as strength, coordination and balance. However, no studies have examined the range of physiological and psychological factors which influence performance on this test. The aim of this study was to examine the relative contributions of a range of sensorimotor, balance and psychological factors to TUG performance in a large sample of older people.
280 community-dwelling people aged 65 plus years (mean age 74.9, SD=6.4) underwent the TUG test, as well as quantitative tests of vision, peripheral sensation, strength, reaction time, balance, fear of falling, pain and vitality.
The time required to complete the TUG was significantly related to limitations in instrumental activities of daily living and fear of falling. Many physiological and psychological factors were significantly associated with TUG performance in univariate analyses. Stepwise multiple regression analyses identified knee strength, postural sway, reaction time, edge contrast sensitivity, MMSE score, SF12 body pain and general health scores, number of medical conditions and age as significant and independent predictors of TUG performance. Of these measures, the lower limb strength measure explained most variance in TUG times. However, other sensorimotor, balance, psychological and health measures provided important independent information. The combined set of variables explained 43.5% of the variance in TUG times (multiple r=0.65).
Findings indicate that, in community-dwelling older people, TUG performance is influenced by lower limb strength, balance, reaction time, vision and pain, in addition to cognitive function and health status.
计时起身行走测试（TUG）被推荐作为老年人跌倒风险的筛查工具。人们认为，这种一般性的移动测试是由力量、协调和平衡等生理因素支撑的。然而，没有研究检查影响该测试表现的一系列生理和心理因素。本研究的目的是在一个较大的老年人样本中，检查一系列感觉运动、平衡和心理因素对 TUG 表现的相对贡献。
280 名 65 岁以上的社区居住者（平均年龄 74.9，SD=6.4）接受了 TUG 测试，以及视力、周围感觉、力量、反应时间、平衡、跌倒恐惧、疼痛和活力的定量测试。
完成 TUG 所需的时间与工具性日常生活活动的限制和跌倒恐惧显著相关。许多生理和心理因素在单变量分析中与 TUG 表现显著相关。逐步多元回归分析确定了膝关节力量、姿势摆动、反应时间、边缘对比敏感度、MMSE 评分、SF12 身体疼痛和总体健康评分、医疗条件数量和年龄是 TUG 表现的显著和独立预测因子。在这些措施中，下肢力量测量解释了 TUG 时间变化的最大方差。然而，其他感觉运动、平衡、心理和健康措施提供了重要的独立信息。变量的组合解释了 TUG 时间变化的 43.5%（多元 r=0.65）。
研究结果表明，在社区居住的老年人中，TUG 表现受到下肢力量、平衡、反应时间、视力和疼痛的影响，除了认知功能和健康状况外。
