The purpose of this study is to show the efficiency of stride and momentum through the analysis of cardiorespiratory function(VO₂, VCO₂, V_E, RR) and cardiopulmonary function(HR, SBP, DBP) on stride difference at the equal velocity of coincidental walking and jogging. The 20 male students in physical education are selected to perform WI, WII and JI, JII at 3.5mph and 4.0mph for 3 minutes. The conclusions are as follows. 1. The analysis of cardiorespiratory function (1) VO₂ is ranked order of JII, JI, WI and WII but considerable increase in jogging. Significant difference in groups and treats(P<0.001). (2) VCO₂ rarely shows difference in WI and WII but significant increase in JI and JII from 3.5mph and 4.0mph. Significant different in groups and treats (P<0.001). (3) Ventilation is ranked in order of JII, JI, WII and WI but little difference because 1.41% increase at 3.5mph, 1.8% increase at 4.0mph in WII than WI. Considerable increase to 49.29±7.53L/min at 3.5mph and to 55.50±8.97L/min at 4.0mph in Jogging. Significant difference in groups and treats(P<0.001). (4) Respiratory rate shows increased according to the velocity and stride frequency. No significant difference groups but significant difference treats(P<0.001). 2. The analysis of cardiopulmonary function (1) Heart rate is ranked in order of JII, JI, WII and WI at 3.5mph and 4.0mph. All ranked. higher in 4.0mph than in 3.5mph. Significant different in groups and treats(P<0.001). (2) Systolic blood pressure is ranked in order of JII, JI, WII and WI at 4.0mph but no significant difference in groups and treats. (3) Diastolic blood pressure is ranked in order of WI, WII and JI, JII at 3.5mph but no significant difference in groups and treats.