Table 1.
Participant mean demographic and fitness data (SD) by aerobic fitness group.
| Variable | Lower-fit | Higher-fit |
|---|---|---|
| n | 28 (10 males) | 21 (10 males) |
| Age (years) | 10.0 (0.6) | 10.0 (0.6) |
| VO2 max (mL/kg/min) * | 36.4 (4.0) | 51.5 (4.3) |
| K-BITa composite score (IQ) | 115.0 (15.1) | 114.4 (6.9) |
| K-BITa crystallized score (vocabulary) | 111.0 (11.9) | 108.5 (6.0) |
| K-BITa fluid score (matrices) | 115.8 (17.8) | 117.4 (8.9) |
| SESb (median) | 2.8 (0.6) | 2.6 (0.7) |
| ADHDc | 5.9 (3.9) | 6.7 (4.2) |
*
Significant difference between higher-fit and lower-fit groups at p < 0.001.
a
Kaufman Brief Intelligence Test (Kaufman and Kaufman, 1990).
b
Socioeconomic status. SES was determined by the creation of a trichotomous index based on three variables: child participation in a free or reduced-price lunch program at school, the highest level of education obtained by the child’s mother and father, and the number of parents who worked full-time (Birnbaum et al., 2002).
c
Scores on the ADHD Rating Scale V (DuPaul et al., 1998).