Table 4 Multiple linear regression analysis: minutes of playing with all variables

MP (min)

β0

309.2

0.28

0.78

[−2024 to 2642]

Skeletal Age (years)

β1

14.5

0.28

0.79

[−96.4 to 125.4]

Maturity offset (years)

β2

−75.9

0.72

0.48

[−297.8 to 145.9]

Soccer training (months)

β3

3.2

1.75

0.09

[−0.6 to 6.9]

VO_{2 max} (ml.kg⁻¹.min⁻¹)

β4

−1.8

0.01

0.92

[−39.2 to 35.7]

Fatigue index (seconds)

β5

−219.4

1.53

0.15

[−521.9 to 83.2]

CMJ (cm)

β6

14.1

1.61

0.13

[−4.3 to 32.5]

GH (ng/dl)

β7

44.3

1.39

0.18

[−22.9 to 111.5]

IGF1 (ng/dl)

β8

0.7

1.87

0.08

[−0.1 to 1.5]

R² = 0.62