{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T08:54:04Z","timestamp":1768812844856,"version":"3.49.0"},"reference-count":29,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2020,7,31]],"date-time":"2020-07-31T00:00:00Z","timestamp":1596153600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["PDE\/BDE\/127785\/2016"],"award-info":[{"award-number":["PDE\/BDE\/127785\/2016"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Physical inactivity may be a consequence of chronic diseases but also a potential modifiable risk factor. Therefore, it should be clinically assessed as a vital sign of patients\u2019 general physical condition prior to any exercise-based intervention. This cross-sectional study describes physical activity in the daily life of 100 chronic respiratory patients before pulmonary rehabilitation, comparing subjective and objective measures. The assessment combined the International Physical Activity Questionnaire (IPAQ) and 4-day accelerometer and oximeter telemonitoring with SMARTREAB technology, assessing heart rate, transcutaneous oxygen saturation and activity-related energy expenditure by metabolic equivalent of task (MET). According to IPAQ, 49% of patients had a moderate level of physical activity in daily life (PADL), a weekly mean level of 2844 \u00b1 2925 MET.min\/week, and a mean sedentary time of 5.8 \u00b1 2.7 h\/day. Alongside this, SMARTREAB telemonitoring assessed maximum activity ranging from 1.51 to 4.64 METs, with 99.6% daytime spent on PADL below 3 METs and 93% of patients with daily desaturation episodes. Regardless of the self-reported IPAQ, patients spend at least 70% of daytime on PADL below 2 METs. SMARTREAB was demonstrated to be an innovative methodology to measure PADL as a vital sign, combining oximetry with accelerometry, crossmatched with qualitative patient data, providing important input for designing patient-tailored pulmonary rehabilitation.<\/jats:p>","DOI":"10.3390\/jcm9082450","type":"journal-article","created":{"date-parts":[[2020,8,3]],"date-time":"2020-08-03T07:45:57Z","timestamp":1596440757000},"page":"2450","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Novel Input for Designing Patient-Tailored Pulmonary Rehabilitation: Telemonitoring Physical Activity as a Vital Sign\u2014SMARTREAB Study"],"prefix":"10.3390","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1753-6843","authenticated-orcid":false,"given":"Catarina Duarte","family":"Santos","sequence":"first","affiliation":[{"name":"Instituto de Sa\u00fade Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, 1649 028 Lisbon, Portugal"},{"name":"Unidade de Reabilita\u00e7\u00e3o Respirat\u00f3ria, Hospital Pulido Valente, Centro Hospitalar Universit\u00e1rio Lisboa Norte, 1769 001 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2622-8084","authenticated-orcid":false,"given":"Rui C\u00e9sar","family":"das Neves","sequence":"additional","affiliation":[{"name":"CAST\u2014Consultoria e Aplica\u00e7\u00f5es em Sistemas e Tecnologia, Lda., 1800 075 Lisbon, Portugal"}]},{"given":"Ruy M.","family":"Ribeiro","sequence":"additional","affiliation":[{"name":"Laborat\u00f3rio de Biomatem\u00e1tica, Instituto de Sa\u00fade Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, 1649 028 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3735-8554","authenticated-orcid":false,"given":"C\u00e1tia","family":"Caneiras","sequence":"additional","affiliation":[{"name":"Laborat\u00f3rio de Microbiologia na Sa\u00fade Ambiental (EnviHealthMicroLab), Instituto de Sa\u00fade Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, 1649 028 Lisbon, Portugal"},{"name":"Healthcare Department, Nippon Gases Portugal, 4470 177 Maia, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4403-2878","authenticated-orcid":false,"given":"F\u00e1tima","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Instituto de Sa\u00fade Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, 1649 028 Lisbon, Portugal"},{"name":"Unidade de Reabilita\u00e7\u00e3o Respirat\u00f3ria, Hospital Pulido Valente, Centro Hospitalar Universit\u00e1rio Lisboa Norte, 1769 001 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3822-7430","authenticated-orcid":false,"given":"Martijn A.","family":"Spruit","sequence":"additional","affiliation":[{"name":"Department of Research &amp; Development, Centre of Expertise for Chronic Organ Failure (CIRO), 6085 NM Horn, The Netherlands"},{"name":"Department of Respiratory Medicine, Maastricht University Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, 6229 HX Maastricht, The Netherlands"},{"name":"REVAL-Rehabilitation Research Center, BIOMED-Biomedical Research Institute, Faculty of Rehabilitation Sciences, Hasselt University, 3590 BE Diepenbeek, Belgium"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0915-4105","authenticated-orcid":false,"given":"Cristina","family":"B\u00e1rbara","sequence":"additional","affiliation":[{"name":"Instituto de Sa\u00fade Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, 1649 028 Lisbon, Portugal"},{"name":"Servi\u00e7o de Pneumologia, Centro Hospitalar Universit\u00e1rio Lisboa Norte, 1649 028 Lisbon, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2020,7,31]]},"reference":[{"key":"ref_1","unstructured":"WHO (2015). 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