Mixed
In older women, objectively measured poor sleep (short/long duration, high fragmentation, or excessive napping) is associated with significantly worse neuromuscular performance and higher odds of functional limitations.
For older women, maintaining sleep between 6 and 7.5 hours and minimizing nighttime awakenings is crucial for preserving walking speed and the ability to perform daily tasks like standing from a chair. Excessive daytime napping (over 1 hour) is also linked to functional limitations. Prioritizing consolidated nighttime sleep over long naps may help preserve physical independence.
Objectively measured poorer sleep was associated with worse physical function.
Why this rating
Large sample size (n=2,889), objective actigraphy measures, and adjustment for multiple confounders, though the design is cross-sectional.
Source
Poor Sleep is Associated with Poorer Physical Performance and Greater Functional Limitations in Older Women
Suzanne E. Goldman et al. · SLEEP · 2007
DOI 10.1093/sleep/30.10.1317
More from this paper
- High wake after sleep onset (WASO ≥1.6 hours) is associated with significantly higher odds (1.8x) of functional limitations in older women, independent of sleep duration.Good
- Excessive daytime napping (≥1.0 hours) is associated with higher odds of functional limitations in older women, independent of nighttime sleep duration.Good
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