Study 2: Insulin Action in the Nonhepatic Tissues. The dependence of tissue specific glucose utilization (R g′) on insulin was assessed in Lean, Obese, and Tesaglitazar groups by making separate studies in the basal state (Basal), as well as under ClampL and ClampH conditions (defined previously). In addition the Tesaglitazar group was studied under ClampM conditions.