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Poor Sleep, Less Physical Activity Linked in KOA

Arthritis Care Res; ePub 2018 May 22; Gilbert, et al

Poor sleep quality is associated with less physical activity in persons with or at risk for knee osteoarthritis (KOA), according to a recent studyResearchers analyzed accelerometer‐measured physical activity and clinical data from Osteoarthritis Initiative (OAI) participants. They found:

  • Of the 1,892 OAI participants with complete data, 300 (16%) reported restless sleep ≥3 days in the past week.
  • Participants reporting much (3‐4 days/week) and most (5‐7 days/week) restless sleep had 11.9% and 23.7% less weekly minutes of moderate‐vigorous activity, respectively, compared to participants reporting rare restless sleep (<1 day/week).
  • These differences persisted after accounting for age, gender, race, body mass index, medical comorbidity, KOA severity, and pain.
  • Differences related to restless sleep were largely attenuated by the presence of high depressive symptoms and low energy levels.

Citation:

Gilbert AL, Lee J, Song J, et al. The relationship between self‐reported restless sleep and objectively measured physical activity in adults with knee osteoarthritis. [Published online ahead of print May 22, 2018]. Arthritis Care Res. doi:10.1002/acr.23581.

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