Calorie restriction leads to greater Akt2 activity and glucose uptake by insulin-stimulated 1 skeletal muscle from old rats 2 3 Haiyan Wang, Edward B. Arias, and Gregory D. Cartee 4 Muscle Biology Laboratory, School of Kinesiology, University of Michigan, Ann Arbor, MI 5 College of Physical Education and Health, East China Normal University, Shanghai, China 6 Department of Molecular and Integra...