Muntaner-Mas A, Martinez-Nicolas A, Quesada A, Cadenas-Sanchez C, Ortega FB
Smartphone App (2kmFIT-App) for Measuring Cardiorespiratory Fitness: Validity and Reliability Study
JMIR Mhealth Uhealth 2021;9(1):e14864
URL: mhealth.jmir.org/2021/1/e14864
DOI: 10.2196/14864