Table 3.

Multiple regression calculations (forward and backward stepwise model) for the 30CODS² test.

Dependent variable	nv	Independent variables	r	R2	R2 variation	F value	p
10-m CODS²	3	10-m Sprint	0.71	50%	50%	58.653	<0.001
Prediction equation: 10-m CODS² = 0.361+0.864 x “10 m Sprint”
30-m CODS²	5	30-m Sprint	0.60	36%	36%	32.561	<0.001
Prediction equation: 30-m CODS²= 2.538+1.096 x “30 m Sprint”
F&BCOD	2	Body mass	0.42	17%	17%	12.239	<0.001
		Body mass + 30-m sprint	0.49	24%	7%	5.288	0.025
Prediction equation: F&BCOD = 2.230 +0.23 x “30-m sprint” -0.009 x “Body mass”
B&FCOD	2	10 m Sprint	0.35	12%	12%	8.091	0.006
Prediction equation: B&FCOD = 1.274+0.946 x “10-m Sprint”

n_v = number of significant variables used in the regression model or interaction between variables; 10-m Sprint = 10-m starting speed time in the 30-m Sprint test (30S); 30-m Sprint = final time in the 30S; 10-m CODS² = 10-m starting speed time in the 30-m Backward and Forward Sprint Test (30CODS²); 30-m CODS² = the final time in the 30CODS²; F&B_COD = time of COD from forward movement to backward movement (10-m distance) in the 30CODS²; B&F_COD = time of COD from backward movement to forward movement (10-m distance) in the 30CODS²; r = Pearson correlation coefficient; R² = coefficient of determination; p = significance level; 95% CI = confidence interval.