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Physical activity, anxiety and depression symptoms, mood, and falls were also assessed in this population.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Moderate to severe COPD patients were assessed for laboratory and clinical postural balance (force platform and mini-balance evaluation systems test (Mini-BESTest)), physical activity (accelerometry), OSA (polysomnography), sleep quality (Pittsburgh Sleep Quality Index), sleepiness (Epworth Sleepiness Scale), anxiety and depression symptoms (Hospital Anxiety and Depression Scale), dyspnoea (modified Medical Research Council), clinical status (COPD Assessment Test) and mood (Brunel Mood Scale). Self-reported falls were recorded for 6\u2005months<jats:italic>via<\/jats:italic>phone calls.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>COPD patients (n=70) were divided according to the polysomnography findings into the no OSA (n=30), mild OSA (n=25), and moderate to severe OSA (n=15) groups. Compared to patients with no OSA, those with moderate to severe OSA (msOSA group) presented median (interquartile range) increased path length (30.5 (23.9\u201334.5) cm<jats:italic>versus<\/jats:italic>39.0\u2005(30.6\u201352.6) cm, anteroposterior displacement (1.89\u2005(1.39\u20132.31) cm<jats:italic>versus<\/jats:italic>2.54\u2005(2.06\u20132.83) cm and postural adjustment velocity (1.02 (0.80\u20131.15) cm\u00b7s<jats:sup>\u22121<\/jats:sup><jats:italic>versus<\/jats:italic>1.30 (1.02\u20131.76) cm\u00b7s<jats:sup>\u22121<\/jats:sup>) (p&lt;0.05). No differences were observed in the Mini-BESTest scores among the groups. The msOSA group presented a greater number of recurrent fallers in the first follow-up trimester. No association was observed between postural balance and age and pulmonary function<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Individuals with COPD and moderate to severe OSA present changes in postural balance, including broader oscillation, faster postural adjustments and a greater risk of falls than those with no OSA. Physical activity, anxiety and depression symptoms, and mood are similar between COPD patients with and without OSA.<\/jats:p><\/jats:sec>","DOI":"10.1183\/23120541.00948-2023","type":"journal-article","created":{"date-parts":[[2024,2,15]],"date-time":"2024-02-15T17:21:01Z","timestamp":1708017661000},"page":"00948-2023","update-policy":"https:\/\/doi.org\/10.1183\/ers-crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Postural balance in COPD with obstructive sleep apnoea: a cross-sectional study"],"prefix":"10.1183","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1658-4306","authenticated-orcid":false,"given":"Caroline Maschio","family":"de Censo","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0899-1112","authenticated-orcid":false,"given":"Viviane Vieira","family":"Passini","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B\u00e1rbara Aparecida Teodoro Alcantara","family":"Verri","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rafaella Fagundes","family":"Xavier","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Regina Maria","family":"Carvalho-Pinto","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Geraldo","family":"Lorenzi-Filho","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3046-3412","authenticated-orcid":false,"given":"Celso R.F.","family":"Carvalho","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"81","published-online":{"date-parts":[[2024,2,15]]},"reference":[{"key":"2024101712183967000_10.2.00948-2023.1","unstructured":"Global Initiative for Chronic Obstructive Lung Disease (GOLD) . 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