000070649 001__ 70649 000070649 005__ 20190220220033.0 000070649 0247_ $$2doi$$a10.2196/mhealth.5193 000070649 0248_ $$2sideral$$a106022 000070649 037__ $$aART-2016-106022 000070649 041__ $$aeng 000070649 100__ $$aSantos-Lozano, A. 000070649 245__ $$aThe Era of Smartphones: Back to Our Biological Makeup? 000070649 260__ $$c2016 000070649 5060_ $$aAccess copy available to the general public$$fUnrestricted 000070649 5203_ $$aPhysical inactivity is a major modifiable cardiovascular risk factor that has become a growing health problem in the 21st century: 83% of adolescents aged 13-15 years and approximately 1/3 of adults worldwide are inactive, that is, not meeting the minimum international physical activity (PA) recommendations (=150 minutes/week of moderate to vigorous PA) [1, 2]. Thus, the PA levels of the general population, especially of individuals at cardiovascular risk, should be routinely assessed by health care professionals, as it has been recently recommended by the American Heart Association [3]. To this end, accelerometers (usually attached to an elastic belt around the waist) allow objective quantification of PA by providing continuous recordings. At least 3 to 5 days of accelerometer monitoring (including weekend days) are required to determine habitual PA, and it is generally accepted that the device should be worn for =10 hours/day [4]. For this reason, the simple and inexpensive method of PA questionnaires is more widely used and generally better accepted. Unfortunately, the validity of self-reported PA is questionable... 000070649 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000070649 590__ $$a4.636$$b2016 000070649 591__ $$aHEALTH CARE SCIENCES & SERVICES$$b7 / 90 = 0.078$$c2016$$dQ1$$eT1 000070649 655_4 $$ainfo:eu-repo/semantics/other$$vinfo:eu-repo/semantics/publishedVersion 000070649 700__ $$0(orcid)0000-0001-8374-9081$$aGaratachea, N.$$uUniversidad de Zaragoza 000070649 700__ $$aPareja-Galeano, H. 000070649 700__ $$aFiuza-Luces, C. 000070649 700__ $$aSanchis-Gomar, F. 000070649 700__ $$aLucia, A. 000070649 7102_ $$11006$$2245$$aUniversidad de Zaragoza$$bDpto. Fisiatría y Enfermería$$cÁrea Educación Física y Depor. 000070649 773__ $$g4, 3 (2016), e63 [2 pp]$$pJMIR mHealth uHealth$$tJMIR mHealth and uHealth$$x2291-5222 000070649 8564_ $$s323356$$uhttps://zaguan.unizar.es/record/70649/files/texto_completo.pdf$$yVersión publicada 000070649 8564_ $$s92320$$uhttps://zaguan.unizar.es/record/70649/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000070649 909CO $$ooai:zaguan.unizar.es:70649$$particulos$$pdriver 000070649 951__ $$a2019-01-31-14:38:56 000070649 980__ $$aARTICLE