Floor-to-Stand Transfers in Older Adults: Insights into Strategies and Lower Extremity Demands.

Abstract

Background/objectives: Getting up from the floor is an important functional skill for independence in older adults but is not often assessed clinically. The purpose of this study was to investigate how floor-to-stand transfer (FTS) ability is related to self-report measures and five-time sit-to-stand (5XSTS) performance, as well as compare peak joint angles during common FTS strategies and lower extremity demands between the 5XSTS and a commonly instructed FTS strategy.

Methods: Thirty-four community-dwelling older adults completed self-report measures and performed the 5XSTS, a FTS in a self-selected manner, and an instructed FTS strategy. Biomechanical analysis of the lower extremities was used to determine peak joint angles, moments, and powers during study tasks. Correlation analyses were used to determine associations between FTS time and self-report scores, 5XSTS time, and lower extremity demands during the 5XSTS. One-way analysis of variance (ANOVA) and Kruskal-Wallis tests were used to determine the differences in self-report measures, 5XSTS performance, and FTS time between self-selected FTS strategies. Lower extremity demands between the 5XSTS and the instructed FTS strategy were compared with Wilcoxon Signed-Rank tests.

Results: Self-report measures were not associated with FTS time or different between FTS strategies. Knee flexion was greater in the roll-over compared to the quadruped strategy (p < 0.001). Ankle and hip demands were greater during the instructed FTS, and knee demands were greater during the 5XSTS (p < 0.001) when comparing the tasks.

Conclusions: The study findings may improve clinical decision-making related to FTS assessment and interventions in older adults. Prescribing exercises with greater hip and ankle demand than the 5XSTS may help maximize FTS ability.