Postural stability and fall risk in patients with obstructive sleep apnea: a cross-sectional study

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dc.authoridZeren, Melih / 0000-0002-9749-315X
dc.authorscopusid57207775641
dc.authorscopusid7006651111
dc.authorscopusid57192204790
dc.authorscopusid6507367280
dc.authorscopusid56506930800
dc.authorscopusid14618848400
dc.contributor.authorYılmaz Gökmen, Gülhan
dc.contributor.authorGürses, Hülya Nilgün
dc.contributor.authorZeren, Melih
dc.contributor.authorÖzyılmaz Semiramis
dc.contributor.authorKansu, Abdullah
dc.contributor.authorAkkoyunlu, Muhammed Emin
dc.date.accessioned2022-02-15T16:59:01Z
dc.date.available2022-02-15T16:59:01Z
dc.date.issued2021
dc.departmentBakırçay Üniversitesien_US
dc.description.abstractPurpose Nocturnal hypoxia and daytime sleepiness resulting from fragmented sleep may impair the ability of postural stability in subjects with OSA. This study investigates the effect of disease severity on postural stability and whether or not it poses a fall risk in individuals with obstructive sleep apnea (OSA). Methods Forty-nine patients with OSA diagnosed by all-night polysomnography (apnea-hypopnea index (AHI) >= 5) and aged 51.4 +/- 7.2 years were included in the study. The patients were divided into two groups as severe OSA (AHI >= 30, n = 24) and non-severe OSA (5 <= AHI <= 30, n = 25). All patients were subjected to testing for postural stability (PS), limits of stability (LOST), and the stability index for fall risk (fall risk SI) with the Biodex Balance System (R). Daytime sleepiness was assessed using the Epworth Sleepiness Scale (ESS). Biodex measurements and daytime sleepiness were compared between severe and non-severe OSA groups. Univariate analysis was conducted to explore if AHI, ESS score, lowest SaO(2) (%), sleep stages (%), or total arousal index predict postural stability scores. Results Overall and anterior-posterior PS indices were higher in the severe OSA group (p < 0.05). Dynamic PS and fall risk indices did not differ between groups. AHI and lowest SaO(2) (%) were found to be an independent predictor for both overall PS (r = 0.300 and r = 0.286, respectively) and fall risk SI (r = 0.296 and r = 0.374, respectively), whereas stage N1 (%) and stage N3 (%) were an independent predictor for overall LOST score (r = -0.328 and r = 0.298, respectively) (p < 0.05). Conclusion Static postural stability of individuals with severe OSA is worse than those with non-severe OSA. Static postural stability worsens, and fall risk increases as AHI increases and the lowest SaO(2) decreases in individuals with OSA. On the other hand, dynamic postural stability worsens as stage N1 (%) sleep increases and stage N3 (%) sleep decreases. While nocturnal hypoxia indicators such as AHI and lowest SaO(2) are associated with static postural stability, sleep structure-related variables are associated with dynamic stability. Including postural stability assessments in the clinical practice for OSA may help addressing workplace accidents or tendency to fall.en_US
dc.identifier.doi10.1007/s11325-021-02322-2
dc.identifier.endpage1967en_US
dc.identifier.issn1520-9512
dc.identifier.issn1522-1709
dc.identifier.issue4en_US
dc.identifier.pmid33608798en_US
dc.identifier.scopus2-s2.0-85101265309en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1961en_US
dc.identifier.urihttps://doi.org/10.1007/s11325-021-02322-2
dc.identifier.urihttps://hdl.handle.net/20.500.14034/503
dc.identifier.volume25en_US
dc.identifier.wosWOS:000619701400001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.journalSleep And Breathingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDaytime sleepinessen_US
dc.subjectFall risken_US
dc.subjectObstructive sleep apneaen_US
dc.subjectPostural stabilityen_US
dc.titlePostural stability and fall risk in patients with obstructive sleep apnea: a cross-sectional studyen_US
dc.typeArticleen_US

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