“…or hyperextension as the main cause of spondylolysis (Peng, 2016). It has been observed in athletes (Hanke et al, 2018;Koerner & Radcliff, 2013), football players (Semon & Spengler, 1981) and physical education students (Park et al, 2009), military (Celtikci et al, 2018;Dunn et al, 2009), mine workers (Meyer & Steyn, 2015) but also among the individuals without such life history.…”