López, José Luis, Helena J. Olsson, Jes Bonet, Josep Maria Padullés, Xavier Padullés, Carla Pérez-Chirinos, David Martínez, Judit Solà, and Sandra Edo. “Analysis of the Effectiveness of the Use of Instep Weights (Powerinstep) in Everyday Runners”. Journal of Human Sport and Exercise 13, no. 2 (June 20, 2018): 340–353. Accessed June 23, 2024. https://www.jhse.ua.es/article/view/2018-v13-n2-effectiveness-instep-weights-powerinstep-runners.