{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T13:46:13Z","timestamp":1770817573694,"version":"3.50.1"},"reference-count":47,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2024,3,13]],"date-time":"2024-03-13T00:00:00Z","timestamp":1710288000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Sleep Research"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Obesity is the primary risk factor for the development of obstructive sleep apnea, and physical inactivity plays an important role. However, most studies have either only evaluated physical activity subjectively or objectively in obstructive sleep apnea. The objectives of this study were: (i) to assess the relationship between obstructive sleep apnea severity (both apnea\u2013hypopnea index and desaturation parameters) and both objectively and subjectively measured physical activity after adjustment for anthropometry and body composition parameters; and (ii) to assess the relationship between objective and subjective physical activity parameters and whether obstructive sleep apnea severity has a modulatory effect on this relationship.\u2009Fifty\u2010four subjects (age 47.7\u2009\u00b1\u200915.0\u2009years, 46% males) were categorized into groups according to obstructive sleep apnea severity: no obstructive sleep apnea; mild obstructive sleep apnea; and moderate\u2010to\u2010severe obstructive sleep apnea. All subjects were evaluated with subjective and objective physical activity, anthropometric and body composition measurements, and 3\u2010night self\u2010applied polysomnography. A one\u2010way ANOVA was used to evaluate the differences between the three obstructive sleep apnea severity groups and multiple linear regression to predict obstructive sleep apnea severity. Differences in subjectively reported sitting time (<jats:italic>p<\/jats:italic>\u2009\u2264\u20090.004) were found between participants with moderate\u2010to\u2010severe obstructive sleep apnea, and those with either mild or no obstructive sleep apnea (<jats:italic>p<\/jats:italic>\u2009=\u20090.004). Age, body mass index and neck circumference explained 63.3% of the variance in the apnea\u2013hypopnea index, and age, body mass index and visceral adiposity explained 67.8% of the variance in desaturation parameters. The results showed that the person's physical activity does not affect obstructive sleep apnea severity. A weak correlation was found between objective and subjective physical activity measures, which could be relevant for healthcare staff encouraging patients with obstructive sleep apnea to increase their physical activity.<\/jats:p>","DOI":"10.1111\/jsr.14195","type":"journal-article","created":{"date-parts":[[2024,3,14]],"date-time":"2024-03-14T05:00:51Z","timestamp":1710392451000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["The role of physical activity on obstructive sleep apnea severity and hypoxic load, and the mismatch between subjective and objective physical activity assessments"],"prefix":"10.1111","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-6231-5053","authenticated-orcid":false,"given":"Katrin Y.","family":"Fridgeirsdottir","sequence":"first","affiliation":[{"name":"Physical Activity, Physical Education, Sport and Health (PAPESH) Research Centre, Sports Science Department, School of Social Sciences Reykjavik University  Reykjavik Iceland"},{"name":"Reykjavik University Sleep Institute (RUSI)  Reykjavik Iceland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Krist\u00edn A.","family":"\u00d3lafsd\u00f3ttir","sequence":"additional","affiliation":[{"name":"Reykjavik University Sleep Institute (RUSI)  Reykjavik Iceland"},{"name":"Department of Engineering, School of Technology Reykjavik University  Reykjavik Iceland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anna Sigridur","family":"Islind","sequence":"additional","affiliation":[{"name":"Reykjavik University Sleep Institute (RUSI)  Reykjavik Iceland"},{"name":"Department of Computer Science, School of Technology Reykjavik University  Reykjav\u00edk Iceland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4017-821X","authenticated-orcid":false,"given":"Timo","family":"Lepp\u00e4nen","sequence":"additional","affiliation":[{"name":"Department of Technical Physics University of Eastern Finland  Kuopio Finland"},{"name":"Diagnostic Imaging Center Kuopio University Hospital  Kuopio Finland"},{"name":"School of Electrical Engineering and Computer Science The University of Queensland  Brisbane Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0877-3529","authenticated-orcid":false,"given":"Erna S.","family":"Arnardottir","sequence":"additional","affiliation":[{"name":"Reykjavik University Sleep Institute (RUSI)  Reykjavik Iceland"},{"name":"Department of Engineering, School of Technology Reykjavik University  Reykjavik Iceland"},{"name":"Department of Computer Science, School of Technology Reykjavik University  Reykjav\u00edk Iceland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jose M.","family":"Saavedra","sequence":"additional","affiliation":[{"name":"Physical Activity, Physical Education, Sport and Health (PAPESH) Research Centre, Sports Science Department, School of Social Sciences Reykjavik University  Reykjavik Iceland"},{"name":"Reykjavik University Sleep Institute (RUSI)  Reykjavik Iceland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,3,13]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/00005768-200009001-00004"},{"key":"e_1_2_9_3_1","volume-title":"AASM manual for the scoring of sleep and associated events","author":"American Academy of Sleep Medicine","year":"2020"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2213-2600(19)30198-5"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.pathophys.2008.04.009"},{"issue":"2","key":"e_1_2_9_6_1","first-page":"126","article-title":"Physical activity, exercise, and physical fitness: Definitions and distinctions for health\u2010related research","volume":"100","author":"Caspersen C. 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