Tsatalas Θ., Tsaopoulos Δ., Sideris Β., Spyropoulos Γ., Tsiokanos Α., Koutedakis Γ., and Giakas Γ. “The Effect of Speed on Biomechanics of Walking and Running”. Inquiries in Physical Education and Sport, vol. 14, no. 2, Mar. 2016, pp. 1-18, https://journals.lib.uth.gr/index.php/inquiries/article/view/1471.