1
Stand upright with feet hip-width apart, shoulders back, core engaged, and arms bent at 90 degrees with elbows close to torso in running position
2
Maintain neutral spine alignment and prepare for explosive vertical movement by slightly flexing knees and loading weight into legs
3
Lower body by bending knees and hips, descending into a quarter squat position while maintaining upright torso and arm drive preparation
4
Explosively extend knees and hips, driving upward through ground while pumping arms forward and upward, landing softly on balls of feet and absorbing impact through full foot