Table 2 Student T-test results for relationship between temporal parameters of dolphin-kick and flutter-kick with fins in lifesaving (approach the victim and tow) and time of competitive swimming (100m individual medley).
Mean Difference SD Difference t p
Flutter k. approaching time
Dolphin-k. approaching time		 .14 4.47 .12 .908
Flutter k. tow time
Dolphin-k. tow time		 -5.74 6.87 -3.24 .006
Dolphin-k. approaching time
100m individual medley time		 -52.00 7.00 -28.78 .000
Flutter k. approaching time
100m individual medley time		 -51.86 7.94 -25.30 .000
Dolphin-k. tow time
100m individual medley time		 -32.05 7.74 -16.04 .000
Flutter k. tow time
100m individual medley time		 -37.79 7.43 -19.69 .000
Flutter k. approaching time
Flutter k. tow time		 -14.07 3.83 -14.23 .000
Flutter k. approaching time
Dolphin-k. tow time		 -19.81 8.37 -9.17 .000
Dolphin-k. approaching time
Flutter k. tow time		 -14.21 4.61 -11.94 .000
Dolphin-k. approaching time
Dolphin-k. tow time		 -19.95 9.38 -8.23 .000