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Relationship between Physical Function and Sleep Quality in African Americans.

Roland J Thorpe1, Alyssa A Gamaldo2, Rachel E Salas3

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Summary

Poor sleep quality is linked to more difficulties with daily activities in older African Americans. Addressing sleep may improve physical functioning in this population.

Keywords:
African Americansactivities of daily living (ADL)genderphysical functionsleep quality

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Area of Science:

  • Gerontology
  • Sleep Medicine
  • Public Health

Background:

  • Research increasingly links sleep to functional outcomes.
  • Limited data exists on sleep and physical functioning in older African Americans.

Purpose of the Study:

  • To investigate the association between sleep quality and physical functioning in older African Americans.
  • To identify potential targets for improving health in this demographic.

Main Methods:

  • Utilized data from 450 community-dwelling older African Americans (mean age 71.4 years).
  • Assessed sleep quality using the Pittsburgh Sleep Quality Index (PSQI).
  • Measured physical functioning via difficulties in activities of daily living (ADL).
  • Employed negative binomial regression to analyze the relationship between sleep quality and ADL difficulties.

Main Results:

  • 72% of participants reported poor sleep quality.
  • Poor sleep quality was associated with a higher likelihood of increased ADL difficulties.
  • This association remained significant after controlling for demographics and health conditions.
  • No significant gender difference was observed in the sleep-physical functioning relationship.

Conclusions:

  • Sleep quality is a potentially significant factor for physical functioning in older African Americans.
  • Interventions targeting sleep may enhance daily living activities and overall health in this group.