Table 2

Baseline and change scores for DI, AIRg, Si, metabolic variables, body weight, and body composition variables by group

n (men/women)Control
Low amount/moderate intensity
Low amount/vigorous intensity
High amount/vigorous intensity
58 (30/28)
57 (30/27)
58 (33/25)
64 (38/26)
BaselineChangePBaselineChangePBaselineChangePBaselineChangeP
DI (× 10−5 min−1)1,562 ± 1,444−65 ± 893NS1,270 ± 1,147742 ± 1,6800.0021,533 ± 1,362255 ± 1,0230.0631,305 ± 1,121255 ± 6880.004
AIRg (pmol/l)490.6 ± 43122 ± 233NS457.3 ± 334−10 ± 207NS445.5 ± 353−43 ± 2160.14505.6 ± 427−77 ± 2180.007
Si (× 10−5 min/pmol)3.5 ± 2.1−0.35 ± 1.70.123.1 ± 2.21.7 ± 2.5<0.00013.7 ± 2.10.8 ± 1.80.0013.2 ± 2.51.1 ± 2.1<0.0001
Fasting glucose (mg/dl)91 ± 113.2 ± 80.00594 ± 9−0.1 ± 9NS93 ± 81.2 ± 9NS94 ± 100.5 ± 10NS
Fasting insulin (μU/ml)8.5 ± 4.30.9 ± 3.30.0410.3 ± 8.1−2.5 ± 5.60.0028.8 ± 5.9−1.5 ± 4.10.0089.6 ± 5.6−1.3 ± 3.30.002
HOMA (mg/dl × μU/ml)2.0 ± 1.20.28 ± 0.80.0112.5 ± 1.9−0.58 ± 1.40.0032.1 ± 1.6−0.36 ± 1.10.0142.3 ± 1.4−0.30 ± 0.90.009
Triglycerides (mg/dl)147 ± 715 ± 43NS171 ± 108−35 ± 760.002143 ± 67−16 ± 490.02155 ± 84−21 ± 500.002
Body mass (kg)88 ± 140.88 ± 2.40.00787 ± 15−0.81 ± 2.40.01288 ± 13−0.96 ± 2.30.00388 ± 13−0.15 ± 2.7<0.0001
Visceral fat (cm2)163 ± 6613 ± 290.003174 ± 77−2.1 ± 30NS158 ± 56−4.6 ± 36NS168 ± 72−12 ± 350.018
Vo2 peak (ml · kg−1 · min−1)27 ± 6−0.7 ± 20.0327 ± 61.8 ± 2<0.000129 ± 63.4 ± 3<0.000128 ± 55.0 ± 3<0.0001
  • Data are means ± SD. Homeostasis model assessment (HOMA) [(fasting glucose × fasting insulin)/22.5] (indicator of insulin sensitivity during fasting conditions). NS, P > 0.30 and therefore not significant. All other P values (< 0.30) are shown.