Current research shows that some of dancing movements, specially during the landing phase (during the eccentric phase of muscle work related to amortization) produce high values of the vertical component of ground reaction force, able to reach the level of 9.4 BW (Picon, 2002; Dworak, 2004; Gorwa et al. 2008). Serious injuries often happen during these phases of jumps. As reported by Luke et al...
