{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T19:05:40Z","timestamp":1774551940390,"version":"3.50.1"},"reference-count":28,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2013,11,28]],"date-time":"2013-11-28T00:00:00Z","timestamp":1385596800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Conselho Nacional de Desenvolvimento Cient\u00ef\u00bf\u00bdfico e Tecnol\u00ef\u00bf\u00bdgico","award":["304004\/2010-3"],"award-info":[{"award-number":["304004\/2010-3"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Physiotherapy Res Intl"],"published-print":{"date-parts":[[2014,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background and Purpose<\/jats:title><jats:p>Immersion in water, with the head above the water line, causes acute physiological changes in the pulmonary and cardiovascular systems. The aim of this study was to evaluate the acute physiological responses to immersion on lung volumes and respiratory muscle strength at different depths.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A cross\u2010sectional study was conducted in 28 healthy individuals (21.75\u2009\u00b1\u20091.99\u2009years; 13 men and 15 women). Anthropometric and spirometric data as well as respiratory muscle strength were evaluated. Evaluations were carried out on dry land (DL) and in a pool at three different levels of immersion: iliac crests (IC), xiphoid appendix of the sternum (XA) and clavicles (CL). The order of evaluation for spirometry and maximal inspiratory and expiratory pressures between DL and the different levels of immersion was randomized. The ANOVA test for repeated measures with <jats:italic>post hoc<\/jats:italic> Tukey was applied to compare the variables.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Vital capacity exhibited lower values at the CL level compared with DL, XA and IC (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01). The most significant change in forced expiratory volume in the first second (FEV<jats:sub>1<\/jats:sub>) occurred under immersion at CL and XA levels. No differences in maximal expiratory pressure were found in the comparisons between the different levels of immersion and DL (<jats:italic>p<\/jats:italic>\u2009=\u20090.19). There was nevertheless a decrease in maximum inspiratory pressure with immersion at the CL level (91\u2009\u00b1\u200923\u2009cmH<jats:sub>2<\/jats:sub>O) compared with DL (105\u2009\u00b1\u200929\u2009cmH<jats:sub>2<\/jats:sub>O), XA (99\u2009\u00b1\u200924\u2009cmH<jats:sub>2<\/jats:sub>O) and IC (101\u2009\u00b1\u200925\u2009cmH<jats:sub>2<\/jats:sub>O) values (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The results suggest that immersion at the level of the clavicles and xiphoid appendix alters lung function and respiratory muscle strength when compared with the values measured out of the water and immersed at the IC level in healthy individuals, demonstrating the influence of hydrostatic pressure on the respiratory system. Copyright \u00a9 2013 John Wiley &amp; Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/pri.1574","type":"journal-article","created":{"date-parts":[[2013,11,28]],"date-time":"2013-11-28T10:26:16Z","timestamp":1385634376000},"page":"140-146","source":"Crossref","is-referenced-by-count":15,"title":["Influence of Different Levels of Immersion in Water on the Pulmonary Function and Respiratory Muscle Pressure in Healthy Individuals: Observational Study"],"prefix":"10.1002","volume":"19","author":[{"given":"Arm\u00e8le Dornelas","family":"de Andrade","sequence":"first","affiliation":[{"name":"Department of Physical Therapy Universidade Federal de Pernambuco  Recife Pernambuco Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jader Carneiro","family":"J\u00fanior","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy Universidade Cat\u00f3lica de Pernambuco  Recife Pernambuco Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Talita Lourdes","family":"Lins de Barros Melo","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy Universidade Federal de Pernambuco  Recife Pernambuco Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Catarina Souza Ferreira","family":"Rattes Lima","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy Universidade Federal de Pernambuco  Recife Pernambuco Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniella Cunha","family":"Brand\u00e3o","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy Universidade Federal de Pernambuco  Recife Pernambuco Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jacqueline","family":"de Melo Barcelar","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy Universidade Federal de Pernambuco  Recife Pernambuco Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,11,28]]},"reference":[{"key":"e_1_2_5_2_1","first-page":"319","article-title":"\u201cATS\/ERS task force: standardisation of lung function testing\u201d. 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