{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T02:04:09Z","timestamp":1777601049628,"version":"3.51.4"},"reference-count":23,"publisher":"Public Library of Science (PLoS)","issue":"12","license":[{"start":{"date-parts":[[2020,12,1]],"date-time":"2020-12-01T00:00:00Z","timestamp":1606780800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"no specific funding except our annual state grant"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\">\n<jats:title>Objectives<\/jats:title>\n<jats:p>Little is known about the physical activity of patients after cardiac surgery. This study was designed to assess this activity using a connected bracelet.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Methods<\/jats:title>\n<jats:p>In this prospective, monocentric study, patients scheduled for cardiac surgery were offered to wear an electronic bracelet. The main objective was to measure the physical activity recovery. Secondary objectives were the predictors of the correct use of the monitoring system, of the physical recovery and, if any, the relationship between physical activity and out-of-hospital morbidity.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Results<\/jats:title>\n<jats:p>One hundred patients were included. Most patients (86%) were interested in participating in the study. The compliance to the device and to the study protocol was good (94%). At discharge, the mean number of daily steps was 1454 \u00b1 145 steps, increasing quite homogeneously, reaching 5801\u00b11151 steps at Day 60. The best fit regression curve gave a maximum number of steps at 5897\u00b1119 (r<jats:sup>2<\/jats:sup> = 0.97). The 85% level of activity was achieved at Day 30\u00b13. No predictor of noncompliance was found. At discharge, age was independently associated with a lower number of daily steps (p &lt;0.001). At Day 60, age, peripheral arterial disease and cardio-pulmonary bypass duration were independently associated with a lower number of daily steps (p = 0.039, p = 0.041 and p = 0.033, respectively).<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec004\">\n<jats:title>Conclusions<\/jats:title>\n<jats:p>After cardiac surgery, wearing a smart bracelet recording daily steps is simple, well tolerated and suitable for measuring physical activity. Standard patients achieved around 6000 daily steps 2 months after discharge. 85% of this activity is reached in the first month.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec005\">\n<jats:title>Clinical trial registry number<\/jats:title>\n<jats:p><jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/clinicaltrials.gov\/ct2\/show\/NCT03113565\" xlink:type=\"simple\">NCT03113565<\/jats:ext-link><\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pone.0241368","type":"journal-article","created":{"date-parts":[[2020,12,1]],"date-time":"2020-12-01T15:11:44Z","timestamp":1606835504000},"page":"e0241368","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":11,"title":["Smart bracelet to assess physical activity after cardiac surgery: A prospective study"],"prefix":"10.1371","volume":"15","author":[{"given":"Marie","family":"Hauguel-Moreau","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C\u00e9cile","family":"Naudin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lee","family":"N\u2019Guyen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1381-6773","authenticated-orcid":true,"given":"Pierre","family":"Squara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julien","family":"Rosencher","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Serge","family":"Makowski","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fabrice","family":"Beverelli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2020,12,1]]},"reference":[{"issue":"1","key":"pone.0241368.ref001","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.jacc.2015.10.044","article-title":"Exercise-Based Cardiac Rehabilitation for Coronary Heart Disease: Cochrane Systematic Review and Meta-Analysis","volume":"67","author":"L Anderson","year":"2016","journal-title":"J Am Coll Cardiol"},{"issue":"38","key":"pone.0241368.ref002","doi-asserted-by":"crossref","first-page":"2949","DOI":"10.1093\/eurheartj\/eht296","article-title":"2013 ESC guidelines on the management of stable coronary artery disease: the Task Force on the management of stable coronary artery disease of the European Society of Cardiology","volume":"34","author":"G Montalescot","year":"2013","journal-title":"Eur Heart J"},{"issue":"7","key":"pone.0241368.ref003","first-page":"547","article-title":"2016 European guidelines on cardiovascular disease prevention in clinical practice. 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