Department of Health and Exercise Science, Wake Forest University, Winston-Salem, North Carolina.
Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina.
J Gerontol A Biol Sci Med Sci. 2015 Oct;70(10):1233-41. doi: 10.1093/gerona/glv029. Epub 2015 Mar 31.
Performance-based and self-report instruments of physical function are frequently used and provide complementary information. Identifying older adults with a mismatch between actual and perceived function has utility in clinical settings and in the design of interventions. Using novel, video-animated technology, the objective of this study was to develop a self-report measure that parallels the domains of objective physical function assessed by the Short Physical Performance Battery (SPPB)-the virtual SPPB (vSPPB).
The SPPB, vSPPB, the self-report Pepper Assessment Tool for Disability, the Mobility Assessment Tool-short form, and a 400-m walk test were administered to 110 older adults (mean age = 80.6±5.2 years). One-week test-retest reliability of the vSPPB was examined in 30 participants.
The total SPPB (mean [±SD] = 7.7±2.8) and vSPPB (7.7±3.2) scores were virtually identical, yet moderately correlated (r = .601, p < .05). The component scores of the SPPB and vSPPB were also moderately correlated (all p values <.01). The vSPPB (intraclass correlation = .963, p < .05) was reliable; however, individuals with the lowest function overestimated their overall lower extremity function while participants of all functional levels overestimated their ability on chair stands, but accurately perceived their usual gait speed.
In spite of the similarity between the SPPB and vSPPB, the moderate strength of the association between the two suggests that they offer unique perspectives on an older adult's physical function.
体能的基于表现和自我报告的评估工具经常被使用，且能提供互补的信息。在临床环境和干预措施的设计中，识别实际功能和感知功能不匹配的老年人具有实用价值。本研究使用新颖的视频动画技术，开发了一种自我报告评估工具，与通过短体适能测试（SPPB）评估的客观身体功能领域相平行，即虚拟 SPPB（vSPPB）。
110 名老年人（平均年龄=80.6±5.2 岁）接受了 SPPB、vSPPB、自我报告的佩珀残疾评估工具、移动性评估工具-短表和 400 米步行测试。30 名参与者的 vSPPB 一周内的重测信度进行了检验。
总 SPPB（平均[±SD] = 7.7±2.8）和 vSPPB（7.7±3.2）得分几乎相同，但中度相关（r =.601，p <.05）。SPPB 和 vSPPB 的分量得分也呈中度相关（所有 p 值均<.01）。vSPPB（组内相关系数=.963，p <.05）是可靠的；然而，功能最低的个体高估了他们的整体下肢功能，而所有功能水平的参与者高估了他们的椅子站立能力，但准确地感知了他们的日常步态速度。
尽管 SPPB 和 vSPPB 非常相似，但两者之间的关联具有中等强度，这表明它们为老年人的身体功能提供了独特的视角。
