Table 3. Comparison of the three different sprint positions. CMC are computed during the first second for football players and non players and mean values of both groups (bottom line).

	4 Points Vs 3 Points		4 Points Vs 2 Points		3 Points Vs 2 Points
	US Football player	Non player	US Football player	Non player	US Football player	Non player
Verticality	.90 (.13)	.87 (.24)	.66 (.14)	.74 (.19)	.78 (.13)	.70 (.25)
	.89 (.19)		.71 (.17)		.71 (.17)
FOV	.91 (.11)	.70 (.13)	.70 (.13)	.79 (.11)	.79 (.11)	.71 (.20)
	.90 (.16)		.71 (.15)		0.71 (.15)
Head Angle	.67 (.27)	.69 (.65)	.69 (.65)	.71 (.17)	.71 (.17)	.69 (.24)
	.64 (.24)		.67 (.23)		.67 (.23)
Head Speed	.71 (.17)	.61 (.21)	.61 (.21)	.61 (.21)	.61 (.21)	.68 (.21)
	.72 (.16)		.65 (.21)		.65 (.21)
Head Acceleration	.69 (.15)	.59 (.19)	.59 (.19)	.67 (.21)	.67 (.21)	.65 (.18)
	.68 (.18)		.64 (.18)		.64 (.18)

No statistical difference was found between players and non-players.