{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T23:45:45Z","timestamp":1790207145476,"version":"4.1.0"},"reference-count":50,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2022,2,19]],"date-time":"2022-02-19T00:00:00Z","timestamp":1645228800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"SPARC grant from the University of Sydney Brain and Mind Centre.","award":["097865"],"award-info":[{"award-number":["097865"]}]},{"name":"Hayatona (Civil Association for Health Awareness) for funding the publication fees for this study","award":["097865"],"award-info":[{"award-number":["097865"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Concordant assessments of physical activity (PA) and related measures in cardiac rehabilitation (CR) is essential for exercise prescription. This study compared exercise measurement from an in-person walk test; wearable activity tracker; and self-report at CR entry, completion (8-weeks) and follow-up (16-weeks). Forty patients beginning CR completed the Six-Minute Walk Test (6MWT), Physical Activity Scale for the Elderly (PASE), and wore Fitbit-Flex for four consecutive days including two weekend days. The sample mean age was 66 years; 67% were male. Increased exercise capacity at CR completion and follow-up was detected by a 6MWT change in mean distance (39 m and 42 m; p = 0.01, respectively). Increased PA participation at CR completion was detected by Fitbit-Flex mean change in step counts (1794; p = 0.01). Relative changes for Fitbit-Flex step counts and a 6MWT were consistent with previous research, demonstrating Fitbit-Flex\u2019s potential as an outcome measure. With four days of data, Fitbit-Flex had acceptable ICC values in measuring step counts and MVPA minutes. Fitbit-Flex steps and 6MWT meters are more responsive to changes in PA patterns following exposure to a cardiac rehabilitation program than Fitbit-Flex or PASE-estimated moderate\u2013vigorous PA (MVPA) minutes. Fitbit-Flex step counts provide a useful additional measure for assessing PA outside of the CR setting and accounts for day-to-day variations. Two weekend days and two weekdays are needed for Fitbit-Flex to estimate PA levels more precisely.<\/jats:p>","DOI":"10.3390\/s22041639","type":"journal-article","created":{"date-parts":[[2022,2,21]],"date-time":"2022-02-21T08:34:47Z","timestamp":1645432487000},"page":"1639","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Comparison of Different Physical Activity Measures in a Cardiac Rehabilitation Program: A Prospective Study"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0663-1906","authenticated-orcid":false,"given":"Muaddi","family":"Alharbi","sequence":"first","affiliation":[{"name":"The Studies and Consulting Office at the Assistant Minister of Health, Riyadh 11176, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adrian","family":"Bauman","sequence":"additional","affiliation":[{"name":"Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Sydney 2006, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammed","family":"Alabdulaali","sequence":"additional","affiliation":[{"name":"Department of the Assistant Minister, Ministry of Health, Riyadh 11176, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lis","family":"Neubeck","sequence":"additional","affiliation":[{"name":"School of Health and Social Care, Edinburgh Napier University, Edinburgh EH14 1DJ, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sidney","family":"Smith","sequence":"additional","affiliation":[{"name":"Division of Cardiology, University of North Carolina, Chapel Hill, NC 27514, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sharon","family":"Naismith","sequence":"additional","affiliation":[{"name":"Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Sydney 2006, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2031-9134","authenticated-orcid":false,"given":"Yun-Hee","family":"Jeon","sequence":"additional","affiliation":[{"name":"Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Sydney 2006, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Geoffrey","family":"Tofler","sequence":"additional","affiliation":[{"name":"Royal North Shore Hospital, Sydney 2065, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Atef","family":"Surour","sequence":"additional","affiliation":[{"name":"The National Association for Health Awareness (Hayatona), Riyadh 12466, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5588-9351","authenticated-orcid":false,"given":"Robyn","family":"Gallagher","sequence":"additional","affiliation":[{"name":"Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Sydney 2006, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"276","DOI":"10.1038\/nrcardio.2014.26","article-title":"Epidemiological studies of CHD and the evolution of preventive cardiology","volume":"11","author":"Wong","year":"2014","journal-title":"Nat. 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