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Related Concept Videos

Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

146
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
146

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Multi-Modal Home Sleep Monitoring in Older Adults
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Accelerometer-assessed sleep and decline in physical function in older men.

Calliope Holingue1, Jocelynn T Owusu1, Marian Tzuang1

  • 1Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.

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|December 24, 2023
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Summary

Short sleep duration and long sleep onset latency in older men are linked to declines in physical function, including slower walking speed and increased mobility difficulties. Further research is needed to understand these sleep-physical function associations.

Keywords:
ActigraphyFunctionIADLsMenMobilitySleep

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Area of Science:

  • Gerontology
  • Sleep Science
  • Physical Function Research

Background:

  • Sleep disturbances are common in older adults.
  • Physical function decline is a major concern in aging populations.
  • Understanding the link between sleep and physical function is crucial for maintaining independence in older age.

Purpose of the Study:

  • To investigate the prospective association between actigraphy-measured sleep parameters and physical function in community-dwelling older men.
  • To examine self-reported and objective measures of physical function in relation to sleep duration, efficiency, wake after sleep onset, and sleep onset latency.

Main Methods:

  • A cohort of 1496 men aged 65+ years from the Osteoporotic Fractures in Men Study underwent sleep assessment using wrist actigraphy.
  • Sleep variables included total sleep time, sleep efficiency, wake after sleep onset, and sleep onset latency.
  • Physical function outcomes measured at 4-year follow-up included self-reported difficulties and objective performance tests (chair stands, gait speed, grip strength, walk pace).

Main Results:

  • Short total sleep time (<6 hours) was associated with significantly greater slowing of walking speed.
  • Long sleep onset latency (≥30 minutes) predicted increased mobility difficulties and longer time to complete chair stands.
  • Sleep efficiency and wake after sleep onset were not significantly linked to physical function changes; no sleep predictors affected instrumental activities of daily living.

Conclusions:

  • Poor sleep, specifically short sleep duration and long sleep onset latency, is prospectively associated with declines in physical function among older men.
  • These findings reinforce the importance of sleep quality for maintaining physical performance in aging.
  • Further research is warranted to elucidate the underlying mechanisms connecting sleep disturbances and physical function impairment.