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. 2016 Jun 23;4(2):e77. doi: 10.2196/mhealth.5518

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©Gianluca Rospo, Viola Valsecchi, Alberto G. Bonomi, Inge WJ Thomassen, Saskia van Dantzig, Antonio La Torre, Francesco Sartor. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 23.06.2016.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mhealth and uhealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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Study enrollment flow-chart. Step-App, 10,000 steps/day training plan provided by a mobile app; CF-App, ACSM guidelines-based cardio-fitness training plan provided by a mobile app; Super-CF, ACSM guidelines-based cardio-fitness training plan provided by a personal trainer.