Exercise, Occupational Activity, and Risk of Sleep Apnea: A Cross-Sectional Study

Exercise, Occupational Activity, and Risk of Sleep Apnea: A Cross-Sectional Study

To investigate whether structured exercise and occupational activity are associated with obstructive sleep apnea (OSA) severity. The International Physical Activity Questionnaire was answered by 5,453 individuals who underwent full-night polysomnography. Participants were classified as exercisers or...

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Bibliographic Details
Published in:Journal of clinical sleep medicine Vol. 13; no. 2; pp. 197 - 204
Main Authors: da Silva, Roberto P, Martinez, Denis, Pedroso, Martina M, Righi, Camila G, Martins, Emerson F, Silva, Leticia M T, Lenz, Maria do Carmo S, Fiori, Cintia Z
Format: Journal Article
Language:English
Published: United States American Academy of Sleep Medicine 15-02-2017
Subjects:
Adult
Cross-Sectional Studies
Exercise - physiology
Female
Humans
Male
Middle Aged
Occupations
Polysomnography
Prospective Studies
Risk Factors
Scientific Investigations
Severity of Illness Index
Sleep Apnea Syndromes - epidemiology
Sleep Apnea Syndromes - physiopathology
Surveys and Questionnaires
exercise
polysomnography
life style
obesity
physical activity
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Summary:To investigate whether structured exercise and occupational activity are associated with obstructive sleep apnea (OSA) severity. The International Physical Activity Questionnaire was answered by 5,453 individuals who underwent full-night polysomnography. Participants were classified as exercisers or non-exercisers and also as occupationally active or non-active. The apnea-hypopnea index (AHI), minimum oxygen saturation (SaO min), and time with saturation below 90% (TB90%) during polysomnography were used as indicators of OSA severity. The sample included mostly men (59%), non-exercisers (56%), and occupationally non-active individuals (75%). Mean age (± standard deviation) was 44 ± 14 years, and mean body mass index was 29.9 ± 7.3 kg/m . Non-exercisers had higher AHI (median 14, 25-75% interquartile range 4-34) than exercisers (8 [2-24]), lower SaO min (83 ± 9 vs. 86 ± 8%), and longer TB90% (2 [0-18] vs. 0 [0-7] minutes), with p < 0.001 for all comparisons. AHI was higher in active (16 [6-34]) vs. non-active occupations (10 [3-27]; p < 0.001). Multinomial logistic regression with control for age, sex, overweight, obesity, and occupational activity showed that structured exercise was significantly associated with a 23% lower odds ratio for moderate OSA and 34% lower odds ratio for severe OSA. Active occupation was not associated with OSA. Structured physical exercise is associated with lower odds for OSA, independently of confounders. Occupational activity does not seem to replace the effects of regular exercise. Compensatory behaviors may be involved in these diverging outcomes. Our results warrant further research about the effect of occupational activity on OSA severity.
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ISSN:1550-9389
1550-9397
DOI:10.5664/jcsm.6446