Title

Poor sleep quality and physical performance in older adults

Source of Publication

Sleep Health

Abstract

© 2020 National Sleep Foundation Objectives: This study aimed to examine the association between sleep quality and physical performance among a group of UK community-dwelling older adults, according to sex. Methods: Sleep quality was assessed using the Pittsburgh Sleep Quality Index. Physical performance was assessed using a short physical performance battery (SPPB), a timed up-and-go, and a hand-grip strength test. Results: Of 591 eligible study members, 401 completed the Pittsburgh Sleep Quality Index. In regression analyses, men who reported poor sleep quality were significantly more likely to have a poor SPPB score, even after adjustment for confounding factors (OR = 2.54, 95% CI 1.10-5.89, P=.03). The direction of the relationship was reversed among women, where those who reported poor sleep were less likely to have a low SPPB score (OR = 0.36, 95% CI 0.15-0.85, P =.02). Poor sleep quality was associated with poorer hand-grip strength among women (regression coefficient = −0.34 z score, 95% CI −0.64, −0.04, P =.03), but this relationship was not observed among men (regression coefficient = 0.28 z score, 95% CI −0.01, 0.57, P =.06). Conclusion: We found evidence of an association between poor sleep quality and poorer physical performance in older adults, though there appear to be important sex differences.

Document Type

Article

Publisher

Elsevier BV

Publication Date

1-1-2020

DOI

10.1016/j.sleh.2020.10.002

Scopus ID

85097076505

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