Skating can be described as a bi-phasic activity involving both a support phase and a swing phase  (Garrett & Kirkendall, 2000; Marino, 1977; Upjohn, Turcotte, Pearsall, & Loh, 2008).  The support phase may be further subdivided into both single leg support, corresponding to glide, and double support corresponding to push off.   Propulsion occurs during the first half of single leg support and commences during double leg support as the hip is abducted and externally rotated and the knee is extended (Garrett & Kirkendall, 2000; Marino, 1977).  Skating is a skill, and the differences between elite and non-elite skaters have been investigated by a number of researchers  (Budarick et al., 2018; McPherson, Wrigley, & Montelpare, 2004; Shell et al., 2017; Upjohn et al., 2008)