Table 3 shows the selected temporal variables. No marked differences were observed in temporal variables between the two kicks. As the total time (from RTO to ball impact) observed for the side-foot kick (190 26.2 m·s1) was shorter than that of the instep kick (221.0 20.1 m·s1), the time from RTO to ball impact was normalized to 100%. The side-foot kick showed a smaller portion of the back-swing phase (33.7 6.3%) and a larger portion of the leg-cocking phase (46.3 5.2%) than those of the instep kick (48.5 8.2% and 28.2 8.8%, respectively).