Department of Physical Therapy, University of Pittsburgh, Pennsylvania, USA.
Department of Epidemiology, University of Pittsburgh, Pennsylvania, USA.
J Gerontol A Biol Sci Med Sci. 2022 Nov 21;77(11):2320-2328. doi: 10.1093/gerona/glab268.
It is important to understand the factors associated with life-space mobility so that mobility disability can be prevented/treated. The purpose of this study was to identify the association between mobility determinants and life space among older adults.
This study was a cross-sectional analysis of 249 community-dwelling older adults (mean age = 77.4 years, 65.5% female, 88% White), who were recruited for a randomized, controlled, clinical intervention trial. Associations between cognitive, physical, psychosocial, financial, and environmental mobility determinants and the life-space assessment (LSA) at baseline were determined using Spearman's correlation coefficients and one-way analysis of variance. Multivariate analysis was performed using multivariable linear regression models.
The mean LSA score for the sample was 75.3 (SD = 17.8). Personal factors (age, gender, education, comorbidities), cognitive (Trail Making Test A and B), physical (gait speed, lower extremity power, 6-Minute Walk Test, Figure of 8 Walk Test, tandem stance, energy cost of walking, and Late-Life Function and Disability Function Scale), psychosocial (Modified Gait Efficacy Scale), and financial (neighborhood socioeconomic status) domains of mobility were significantly associated with LSA score. In the final regression model, age (β = -0.43), lower extremity power (β = 0.03), gait efficacy (β = 0.19), and energy cost of walking (β = -57.41) were associated with life space (R2 = 0.238).
Younger age, greater lower extremity power, more confidence in walking, and lower energy cost of walking were associated with greater life space. Clinicians treating individuals with mobility disability should consider personal, physical, and psychosocial factors when assessing barriers to life-space mobility.
了解与生活空间移动性相关的因素对于预防/治疗行动不便至关重要。本研究的目的是确定老年人移动性决定因素与生活空间之间的关系。
这是一项针对 249 名居住在社区的老年人（平均年龄=77.4 岁，65.5%为女性，88%为白人）的横断面分析，他们被招募参加一项随机、对照、临床干预试验。使用 Spearman 相关系数和单因素方差分析确定认知、身体、心理社会、财务和环境移动性决定因素与基线时生活空间评估（LSA）之间的关联。使用多变量线性回归模型进行多变量分析。
样本的平均 LSA 得分为 75.3（SD=17.8）。个人因素（年龄、性别、教育程度、合并症）、认知（走迷宫测试 A 和 B）、身体（步态速度、下肢力量、6 分钟步行测试、8 字形步行测试、并足站立、行走能量消耗、晚年功能和残疾功能量表）、心理社会（改良步态效能量表）和财务（邻里社会经济地位）领域的移动性与 LSA 评分显著相关。在最终回归模型中，年龄（β=-0.43）、下肢力量（β=0.03）、步态效能（β=0.19）和行走能量消耗（β=-57.41）与生活空间相关（R2=0.238）。
年龄较小、下肢力量较强、行走信心较高、行走能量消耗较低与生活空间较大有关。治疗行动不便患者的临床医生在评估生活空间移动性障碍时应考虑个人、身体和心理社会因素。
