Table 1. A comparison of kinematic variables for early acceleration in slow and fast sprinters. Data aremeans (SD).

Variable	Fast Group (n = 10)	Slow Group (n = 10)	p
Body Mass Index (kg·m-2)	25.1	25.4	.82
Horizontal Hip Velocity (m·s-1)	5.98 (.15)	5.39 (.23)	.00*
Stride Length (m)	2.09 (.15)	2.05 (.13)	.73
Stride Frequency (Hz)	1.82 (.12)	1.67 (.24)	.01*
Left Foot Contact Time (s)	.20 (.02)	.23 (.03)	.01*
Right Foot Contact Time (s)	.17 (.01)	.19 (.02)	.01*
Left Foot Flight Time (s)	.05 (.01)	.05 (.03)	.57
Right Foot Flight Time (s)	.06 (.01)	.06 (.02	.52

* Significant difference between the groups.