Insulin sensitivity and fasting circulating lipids. Data pooled for the three cross-over studies, measured on the morning after each activity regimen. Means and standard error bars are presented. *p ≤ 0.017; Apo B, apolipoprotein; Chol., Cholesterol; HDL, high density lipoprotein cholesterol; HOMA2-IR, HOMA2 insulin resistance; LDL, low density lipoprotein cholesterol. Number of subjects: Sit = 61; SitLess = 61; Exercise = 37.