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Does obstructive sleep apnea affect aerobic fitness?
Louis Q Guillermo1, Thomas J Gal, Eric A Mair
1Department of Otolaryngology-Head and Neck Surgery, Wilford Hall United States Air Force Medical Center, San Antonio, Texas, USA.
The Annals of Otology, Rhinology, and Laryngology
|November 2, 2006
Summary
Obstructive sleep apnea (OSA) did not decrease aerobic fitness overall. However, severe OSA (apnea-hypopnea index > 20) significantly reduced cardiorespiratory fitness, indicating a need for further research into OSA
Area of Science:
- Cardiorespiratory fitness
- Sleep medicine
- Exercise physiology
Background:
- Obstructive sleep apnea (OSA) is a common condition.
- Aerobic fitness is crucial for overall health.
- The impact of OSA on objective aerobic fitness is not fully understood.
Purpose of the Study:
- To objectively assess aerobic fitness in patients with OSA using cycle ergometry.
- To compare maximum oxygen consumption (VO2max) in OSA patients versus a healthy control population.
Main Methods:
- Retrospective cohort analysis of 247 OSA patients.
- Comparison of VO2max data from annual cycle ergometry tests.
- Utilized normative data from 1.4 million US Air Force tests for control.
Main Results:
- Overall, OSA patients showed increased VO2max compared to controls (p < .001).
- Patients with an apnea-hypopnea index > 20 had significantly decreased VO2max (p < .001).
- No significant VO2max changes were observed after OSA treatment.
Conclusions:
- OSA does not universally predict decreased aerobic fitness in this population.
- Severe OSA (AHI > 20) is associated with reduced aerobic capacity.
- Further research correlating OSA severity and treatment with fitness outcomes is warranted.
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