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Obstructive sleep apnea negatively impacts objectively measured physical activity.

Trent A Hargens1, Ryan A Martin2, Courtney L Strosnider2

  • 1Department of Kinesiology, James Madison University, Harrisonburg, VA, 22807, USA. hargenta@jmu.edu.

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Summary

Individuals with obstructive sleep apnea (OSA) were less physically active, showing fewer daily steps and moderate-to-vigorous activity minutes. This reduced physical activity (PA) was observed independently of obesity and daytime sleepiness.

Keywords:
AccelerometerOSAObesityPhysical activitySteps

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Area of Science:

  • Sleep Medicine
  • Exercise Physiology
  • Public Health

Background:

  • Obesity and obstructive sleep apnea (OSA) frequently coexist.
  • The independent effect of OSA on physical activity (PA) is not well understood.
  • Understanding this relationship is crucial for managing comorbid conditions.

Purpose of the Study:

  • To investigate the impact of OSA on objectively measured physical activity (PA).
  • To determine if OSA affects PA levels independent of obesity.
  • To utilize accelerometer data for precise PA measurement.

Main Methods:

  • Recruited overweight-to-obese participants screened for OSA.
  • Divided participants into OSA (n=35) and control (n=24) groups.
  • Assessed PA using accelerometers over 4-7 days, including weekends.

Main Results:

  • The OSA group had higher waist and neck circumferences and was older.
  • No significant differences in BMI or daytime sleepiness between groups.
  • The OSA group exhibited significantly fewer daily steps and less moderate-to-vigorous PA.

Conclusions:

  • Individuals with likely OSA demonstrate reduced objectively measured physical activity.
  • This difference in PA persists even when accounting for obesity and sleepiness.
  • Further research is needed to identify mechanisms driving reduced PA in OSA.