Editing Human leg (section)

==== Prevention tools ====
Voluntary stretches to the legs, such as the wall stretch, condition the hamstrings and the [[gastrocnemius muscle|calf muscle]] to various movements before vigorously working them.<ref>{{cite web |last=Spiker |first=Ted |date=7 March 2007 |title=Build Stronger Lower Legs |work=Runner's World |url=http://www.runnersworld.com/health/build-stronger-lower-legs}}</ref> The environment and surroundings, such as uneven terrain, can cause the feet to position in an unnatural way, so wearing shoes that can absorb forces from the ground's impact and allow for stabilizing the feet can prevent some injuries while running as well. Shoes should be structured to allow friction-traction at the shoe surface, space for different foot-strike stresses, and for comfortable, regular arches for the feet.<ref name="autogenerated1999" />