Sleep Quality Associated With Motor Function Among Older Adult Survivors of Critical Illness

We examined associations between sleep duration and grip strength using exploratory multivariate regression analyses, after adjustment for clinically relevant covariates. Results Grip strength among this cohort of older ICU survivors was almost 2 SDs below the norm for healthy older adults, indicating considerable ICU-acquired weakness. Grip strength was lower among subjects with history of OSA than those without OSA. Greater TST was associated with worse grip strength, after adjusting for history of OSA and Pittsburgh Sleep Quality Index global score. Moreover, among the subset of male subjects (n = 19), greater TST was significantly and negatively associated with grip strength, after adjusting for Acute Physiology, Age, and Chronic Health Evaluation III score, and Pittsburgh Sleep Quality Index global score. Discussion Sleep promotion may be a potentially modifiable risk factor to mitigate ICU-acquired weakness in older ICU survivors. We propose that improving sleep throughout recovery from critical illness may indirectly promote better outcomes, as poor grip strength is linked to longer length of hospital stay, higher acuity of discharge disposition, and worsened functional decline in older adults.
Source: Nursing Research - Category: Nursing Tags: BRIEF REPORTS Source Type: research