Table 1.

Baseline characteristics of study participants

ExercisersControls
Mean ± SDMean ± SD
N8584
Age (y)60.7 ± 6.760.6 ± 6.8
BMI (kg/m2)30.5 ± 4.130.5 ± 3.7
Percent body fat (DXA)47.5 ± 4.847.4 ± 4.6
VO2max (mL/kg·min)20.0 ± 3.620.5 ± 3.0
EducationN (%)N (%)
 Some high school or high school10 (11.5)9 (10.5)
 Some college or vocational training36 (41.4)35 (40.7)
 College graduate23 (26.4)25 (29.1)
 Graduate degrees18 (20.7)17 (19.8)
Ethnicity (%)
 Non-Hispanic White74 (85.1)75 (87.2)
VEGF (pg/mL)390.1 ± 250.4499.8 ± 301.0
 Median (range)304.6 (82.5–1,352.7)457.6 (88.6–1,787.7)
PEDF (μg/mL)11.8 + 2.311.7 ± 2.9
 Median (range)11.6 (6.7–19.0)11.3 (6.6–23.8)
PAI (ng/mL)5.9 +3.86.3 ± 4.0
 Median (range)4.9 (1.5–21.7)5.4 (1.8–24.1)
OPN (ng/mL)60.8 +14.359.8 ± 15.7
 Median (range)58.6 (36.7–124.3)56.2 (33.5–107.6)