“…Particularly, children with an adequate hamstring extensibility seem to have a lower risk of pelvic/spinal postural disorders (de Lemos, dos Santos & Gaya, 2012;López-Miñarro & Alacid, 2010; Muyor, Alacid, Rodríguez-García, & López-Miñarro, 2012), current low back pain (Jones, Stratton, Reilly, & Unnithan, 2005;Roy, Shaw, & Beattie, 2015) and neck tension (Mikkelsson, et al, 2006), as well as a lower risk of low back pain later during adulthood (Hestbaek, Leboeuf-Yde, Kyvik, & Manniche, 2006). Additionally, in children with low back pain an improvement in their hamstring extensibility levels has also been associated to a reduction of their pain levels (Ahlqwist, Hagman, Kjellby-Wendt, & Beckung, 2008;Jones, Stratton, Reilly, & Unnithan, 2007).…”