Curtin School of Allied Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia.
Health and Social Sciences, Singapore Institute of Technology, Singapore, Singapore.
Phys Ther. 2021 Aug 1;101(8). doi: 10.1093/ptj/pzab134.
The Community Balance and Mobility Scale (CBMS) has been shown to be a valid and reliable outcome measure for evaluating balance and mobility among older adults; however, some items cannot be conducted in all home environments, limiting its use in home-based assessments. The purpose of this study was to evaluate the accuracy and selected measurement properties of a modified 12-item CBMS-Home (8 original items and 4 modified items of the CBMS) feasible for use within the constraints of home assessments for older adults.
Fifty-five people (mean [SD] age = 77.2 [6.0] years) were recruited for this validation study. Participants completed the full original CBMS, CBMS-Home (the modified items of the CBMS), the Functional Reach Test, and Step Test. Principal components analysis, internal consistency, test-retest and intermethod reliability, agreements within and between methods, and criterion validity were calculated.
Principal components analysis of CBMS and CBMS-Home both revealed 3 similar components and loadings. Bland-Altman and weighted κ analyses revealed that the CBMS-Home demonstrated moderate to almost perfect agreement (weighted κ = 0.45-0.84) with CBMS. The distribution of scores of CBMS-Home were satisfactory, and other results showed excellent test-retest (intraclass correlation coefficient [ICC] = 0.95) and intermethod reliability (ICC = 0.94) and internal consistency (Cronbach α = 0.94). There were no ceiling effects (0%) or floor (1.8%) effects. CBMS-Home demonstrated a low (Spearman ρ = 0.39) and moderate positive (Spearman ρ = 0.63) relationship with the Functional Reach Test and Step Test, respectively.
The CBMS-Home has good psychometric properties and provides a useful multidimensional assessment tool.
A modified version of the CBMS (CBMS-Home) can be confidently used to assess older adults-within their own home-who might have mild balance impairments.
社区平衡和移动量表（CBMS）已被证明是一种有效的、可靠的评价老年人平衡和移动能力的结果测量工具；然而，一些项目无法在所有家庭环境中进行，限制了其在家中评估中的使用。本研究的目的是评估可在老年人家庭评估中受限条件下使用的改良 12 项 CBMS 家庭版（CBMS 的 8 项原始项目和 4 项改良项目）的准确性和部分测量特性。
本验证研究共招募了 55 名参与者（平均[标准差]年龄=77.2[6.0]岁）。参与者完成了完整的原始 CBMS、CBMS 家庭版（CBMS 的改良项目）、功能性伸展测试和跨步测试。计算了主成分分析、内部一致性、重测和组内方法间信度、方法内和方法间的一致性以及标准效度。
CBMS 和 CBMS 家庭版的主成分分析均显示出 3 个相似的成分和负荷。Bland-Altman 和加权κ分析表明，CBMS 家庭版与 CBMS 具有中度至几乎完美的一致性（加权κ=0.45-0.84）。CBMS 家庭版的评分分布令人满意，其他结果显示出极好的重测（组内相关系数[ICC] =0.95）和组内方法间信度（ICC=0.94）和内部一致性（Cronbach α=0.94）。无天花板效应（0%）或地板效应（1.8%）。CBMS 家庭版与功能性伸展测试和跨步测试分别显示出较低（Spearman ρ=0.39）和中度正相关（Spearman ρ=0.63）。
CBMS 家庭版具有良好的心理测量学特性，为多维评估工具提供了有用的补充。
CBMS 的改良版本（CBMS 家庭版）可自信地用于评估可能有轻度平衡障碍的、在其自己家中的老年人。
