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Exercise training effect on obstructive sleep apnea syndrome.

J F Norman1, S G Von Essen, R H Fuchs

  • 1Division of Physical Therapy Education, Department of Pulmonary Medicine, University Hospital, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA. jfnorman@unmc.edu

Sleep Research Online : SRO
|May 31, 2001
PubMed
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Exercise training and weight loss improved obstructive sleep apnea syndrome (OSAS) measures, including apnea-hypopnea index (AHI) and sleep quality. While not a standalone cure, exercise is a beneficial adjunct therapy for mild to moderate OSAS.

Area of Science:

  • Sleep Medicine
  • Exercise Physiology
  • Cardiorespiratory Health

Background:

  • Obstructive sleep apnea syndrome (OSAS) management is complex, with unclear benefits of exercise training.
  • Patients anecdotally report symptom improvement with regular exercise.
  • Weight loss is a known factor in improving OSAS.

Purpose of the Study:

  • To evaluate the effects of a supervised exercise program and weight loss on physical and subjective measures in individuals with OSAS.
  • To assess changes in polysomnographic data, physical capacity, anthropometrics, quality of life, daytime somnolence, and mood states.

Main Methods:

  • A six-month supervised exercise program was conducted with nine subjects diagnosed with mild to moderate OSAS.
  • Pre- and post-training assessments included polysomnography, physical fitness tests, anthropometric measurements, and validated questionnaires (Health Status Questionnaire, Profile of Mood States, Epworth Sleepiness Scale).

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Main Results:

  • Significant reductions in apnea-hypopnea index (AHI) (p=0.002), weight (-6.2 kg), and body mass index (-1.6) were observed.
  • Improvements were noted in total sleep time, sleep efficiency, and reductions in awakenings and arousals per hour.
  • Significant positive changes in health status, mood, and decreased daytime somnolence were reported.

Conclusions:

  • Regular exercise training positively impacts AHI, aerobic capacity, BMI, and quality of life in OSAS patients.
  • Exercise alone is insufficient as a primary intervention for most OSAS individuals.
  • Exercise training shows promise as an adjunctive strategy in the conservative management of mild to moderate OSAS.