Physical demands of top-class soccer friendly matches in relation to a playing position using Global Positioning System technology - Mallo, J.; Mena, E.; Nevado, F.; Paredes, V. (Journal of Human Kinetics, 2015)
Keywords: soccer; elite sport; competition; movement; playing position (sport games); athlete; investigation method; load intensity; acceleration; heart rate; heart; frequency; GPS; Germany; sport games