After intervention , aerobic training significantly improved fasting insulin ( from 8.51 2.01 U/mL to 7.11 2.02 U/mL ) , 2-hour glucose level ( from 9.13 1.14 mmol/L to 7.22 1.23 mmol/L ) , and HOMA-IR ( from 1.62 1.01 to 1.29 .79 ) in the intervention group compared with the control group ( P < .05 ) .