Malliou Π., Gioftsidou Α., Delaporta Α., and Godolias Γ. “Osteoporosis and Physical Training”. Inquiries in Physical Education and Sport, vol. 2, no. 2, Dec. 2004, pp. 173-8, https://journals.lib.uth.gr/index.php/inquiries/article/view/1051.