Objective Measurement of the Mode of Commuting to School Using GPS: A Pilot Study Villa González, Emilio Rosado López, Sergio Barranco Ruiz, Yaira María Herrador Colmenero, Manuel Cadenas Sánchez, Cristina Santos, María Paula Chillón Garzón, Palma Active transport Health behavior Sedentary behavior Physical activity Accelerometry Active commuting to school (ACS) is a promising strategy to increase the daily physical activity (PA) in youths. However, more studies are required to objectively quantify the mode of commuting to school, as well as the health impact of this behavior. Thus, the aims of this study were: (1) to objectively determine the mode of commuting to school using GPS; (2) to quantify the sedentary time, PA levels, energy expenditure, and the steps derived from each mode of commuting; and (3) to analyze the associations between ACS trips and sedentary time, PA, energy expenditure, and steps. A total of 115 trips were recorded. Most trips were performed by walk (49.5%), followed by vehicle (39.1%) and mixed transport (11.3%). In the active school trips, youths were less likely to spend minutes in sedentary behaviors (OR: 0.481, p = 0.038), a higher increase on Metabolic-Equivalent of Task (METs) (OR: 5.497, p = 0.013), and greater steps (OR: 1.004, p = 0.029) than in the passive school trips (both active and passive modes were objectively measured). ACS (mainly walking) contribute to higher METs and steps in adolescents. GPS could be an appropriate method to objectively evaluate the PA variables related to the ACS trips. 2019-11-22T12:59:34Z 2019-11-22T12:59:34Z 2019-09-29 info:eu-repo/semantics/article Villa-González, E., Rosado-López, S., Barranco-Ruiz, Y., Herrador-Colmenero, M., Cadenas-Sánchez, C., Santos, M. P., & Chillón, P. (2019). Objective Measurement of the Mode of Commuting to School Using GPS: A Pilot Study. Sustainability, 11(19), 5395. http://hdl.handle.net/10481/58033 10.3390/su11195395 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España MDPI