Steckhan Greta M A, Fleig Lena, Schwarzer Ralf, Warner Lisa M
MSB, Medical School Berlin, Germany.
Freie Universität Berlin, Germany.
J Appl Gerontol. 2022 Feb;41(2):421-429. doi: 10.1177/0733464820979188. Epub 2020 Dec 11.
Preserving Quality of Life (QoL) in old age gains in importance, but Fear of Falling (FoF) considerably limits QoL. The aim of our study was to understand how physical mediators may translate FoF to QoL. At Time 1, FoF, subjective leg strength, balance, QoL, and objective gait speed were assessed. QoL was reassessed after 6 months, at Time 2 ( = 125). A sequential mediation analysis examined whether the relationship between FoF and QoL could be mediated by leg strength, balance, and gait speed. FoF was directly associated with QoL (β = -.27; 95% CI [-0.007, -0.001]) as well as indirectly via leg strength, balance, and gait speed (specific sequential indirect effect: β = -.03; 95% CI [-0.06, -0.001]; = .40 in QoL; controlled for age, QoL at Time 1). An intervention approach could be to address FoF and foster physical functioning and gait speed to maintain QoL.
在老年阶段保持生活质量（QoL）变得越发重要，但害怕跌倒（FoF）却极大地限制了生活质量。我们研究的目的是了解身体中介因素如何将害怕跌倒转化为对生活质量的影响。在时间1时，对害怕跌倒、主观腿部力量、平衡能力、生活质量和客观步态速度进行了评估。在6个月后的时间2（n = 125）重新评估了生活质量。进行了一项顺序中介分析，以检验害怕跌倒与生活质量之间的关系是否可由腿部力量、平衡能力和步态速度介导。害怕跌倒与生活质量直接相关（β = -0.27；95%置信区间[-0.007，-0.001]），也通过腿部力量、平衡能力和步态速度间接相关（特定顺序间接效应：β = -0.03；95%置信区间[-0.06，-0.001]；在生活质量中占比 = 0.40；控制了年龄、时间1时的生活质量）。一种干预方法可以是解决害怕跌倒的问题，并促进身体功能和步态速度以维持生活质量。
