Oral propolis water extract (50 mg/kg body weight/d/6 weeks)  6-weeks old Sprague-Dawley rats  EG: propolis + eccentric exerciseCG1: only eccentric exerciseCG2: no treatment  Blood levels of glucose and insulin, MDA, SOD, GPX, and CAT in the liver and in the tissue of the liver and the gastrocnemius muscle.  Serum levels of glucose and insulin were significantly lower in EG and CG1 than CG2. Glycogen level in skeletal muscle was higher in EG and CG1 than CG2. Skeletal muscle levels of MDA were lower in EG than CG1 and CG2. Liver levels of SOD as well as gastrocnemius muscle levels of SOD, GPX and CAT were higher in EG only.  [109]