{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T12:58:43Z","timestamp":1790513923576,"version":"4.1.0"},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[1995,8,1]],"date-time":"1995-08-01T00:00:00Z","timestamp":807235200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1995,8,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Snoring and sleep apnea are more common in the supine than seated position. We therefore studied the effect of posture on upper-airway caliber in normal subjects, snorers, and subjects with the sleep-apnea\/hypopnea syndrome (SAHS). We measured upper-airway cross-sectional area by acoustic reflection in 110 SAHS patients (apnea\/hypopnea index [AHI] &amp;gt; 15), 70 snorers without SAHS (AHI &amp;lt; 15), and 40 male controls matched for body-mass index (BMI) to the 40 SAHS patients. SAHS patients in the seated position had smaller upper-airway areas at the orophyngeal junction (OPJ) than either the snorers (p &amp;lt; 0.01) or the normal subjects (p &amp;lt; 0.02), but there were no differences between groups in airway cross-sectional areas in the supine or lateral recumbent positions. SAHS patients had significantly smaller decreases in OPJ area from the seated to either the supine (p &amp;lt; 0.001) or lateral recumbent (p &amp;lt; 0.001) positions than did the snorers. SAHS patients also had smaller (p &amp;lt; 0.05) decreases in OPJ area upon lying down than did the BMI-matched normal subjects. These data are compatible with SAHS patients defending their upper airway more upon lying down than do snorers or normal subjects.<\/jats:p>","DOI":"10.1164\/ajrccm.152.2.7633733","type":"journal-article","created":{"date-parts":[[2013,4,4]],"date-time":"2013-04-04T17:53:10Z","timestamp":1365097990000},"page":"721-724","source":"Crossref","is-referenced-by-count":61,"title":["The Effect of Posture on Airway Caliber With the Sleep-Apnea\/Hypopnea Syndrome"],"prefix":"10.1093","volume":"152","author":[{"given":"S E","family":"Martin","sequence":"first","affiliation":[{"name":"Department of Medicine, University of Edinburgh, Scotland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I","family":"Marshall","sequence":"additional","affiliation":[{"name":"Department of Medicine, University of Edinburgh, Scotland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N J","family":"Douglas","sequence":"additional","affiliation":[{"name":"Department of Medicine, University of Edinburgh, Scotland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[1995,8,1]]},"container-title":["American journal of respiratory and critical care medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/ajrccm\/article-pdf\/152\/2\/721\/67626980\/ajrccm_152_2_721.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/ajrccm\/article-pdf\/152\/2\/721\/67626980\/ajrccm_152_2_721.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,28]],"date-time":"2026-03-28T08:43:40Z","timestamp":1774687420000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/ajrccm\/article\/152\/2\/721\/8553795"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1995,8,1]]},"references-count":0,"journal-issue":{"issue":"2","published-online":{"date-parts":[[1995,8,1]]},"published-print":{"date-parts":[[1995,8,1]]}},"URL":"https:\/\/doi.org\/10.1164\/ajrccm.152.2.7633733","relation":{},"ISSN":["1073-449X","1535-4970"],"issn-type":[{"value":"1073-449X","type":"print"},{"value":"1535-4970","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[1995,8]]},"published":{"date-parts":[[1995,8,1]]}}}