Influence of endurance running on calcaneal bone stiffness in male and female runners - Lara, B.; Salinero, J. J.; Gutiérrez, J.; Areces, F.; Abián-Vicén, J.; Ruiz-Vicente, D.; Gallo-Salazar, C.; Jiménez, F.; Del Coso, J. (European Journal of Applied Physiology, 2016)