Table 1.
Participant demographic and fitness data by fitness group (Mean ± SD); (Range)
| Measure | Lower-Fit | Higher-Fit |
|---|---|---|
| n | 24 (13 females) | 24 (10 females) |
| Age (years) | 10.1 ± 0.6 (9.0 to 11.2) | 10.0 ± 0.6 (8.9 to 10.9) |
| Tanner | 1.7 ± 0.5 (1 to 2) | 1.7 ± 0.5 (1 to 2) |
| K-BIT composite (IQ) | 113.2 ± 14.9 (84 to 136) | 115.3 ± 8.6 (99 to 130) |
| Socioeconomic Status (SES) | 2.7 ± 0.6 (1 to 3) | 2.6 ± 0.6 (1 to 3) |
| ADHD | 6.3 ± 4.7 (0 to 19) | 6.9 ± 4.5 (0 to 17) |
| VO2max (ml/kg/min) | 35.7 ± 5.3**(19.9 to 45.1) | 52.6 ± 4.3**(46.2 to 63.4) |
| VO2max Percentile | 8.8 ± 5.3**(3 to 20) | 83.3 ± 4.1**(76 to 94) |
Note: Tanner- scores indicate that pubertal status was at or below a score of 2 (prepubescent) on the 5-point scale from the Tanner Staging System (Tanner, 1962). SES- scores reflect a trichotomous index based on participation in free or reduced-price lunch program at school, the highest level of education obtained by the mother and father, and the number of parents who worked full-time (Birnbaum et al., 2002). ADHD- scores on the Attention Deficit Hyperactivity Disorder Rating Scale IV. VO2max- maximum oxygen consumption. VO2max Percentile- scores reflect normative values, based on age and sex for VO2max (Shvartz and Reibold, 1990).
**
p ≤ .01.