Table 2.  Parameters specification for the final Hierarchical Linear Model with standard errors (SE) and confidence intervals. Running performance (V3000 m speed, in km·h-1) is the dependent variable. V4 and vVO2max are in km·h-1.

Parameter

Estimate(SE)

95% Confidence Interval

Fixed effect

    

Intercept

19.86 (.13)

19.61 — 20.11

Time

-.06 (.02)

-.10 — -.02

V4

.43 (.09)

.25 — .61

vVO2max

.32 (.10)

.12 — .52

Random effects

Variance

  

BMI (Baseline)

.54 *

  

Level 1 error

.45

  
* significant at p < 0.001