Table 5.

Significance of the regression model (U-23 Men volleyball players jump serve).

ANOVA†
Model		Sum of Squares	df	Mean square	F	Sig.
1	Regression	94.95	1	94.95	664.51*	00.00‡
	Residual	01.13	8	00.13
	Total	96.17	9
2	Regression	95.45	2	47.72	526.58*	00.00§
	Residual	00.63	7	00.08
	Total	96.91	9
3	Regression	95.82	3	31.93	713.20*	00.00∥
	Residual	00.26	6	00.04
	Total	96.09	9

ANOVA = analysis of variance.

^†Dependent Variable: ball velocity.

^‡Predictors: (Constant), approach velocity.

^§Predictors: (Constant), approach velocity, shoulder extension angles at cocking phase.

^∥Predictors: (Constant), approach velocity, shoulder extension angles at cocking phase, the height of CG.

^*Significant value if P < .05.