HOW: Sit in a chair with your foot comfortably on the ground, be sure to perform this exercise barefoot. To begin the exercise, push through the balls of your foot to raise your heel off the ground. You can use a weight placed on top of your thigh or your hands and upper body weight to make the exercise harder.
FEEL: You should feel the muscles in your calve working as you try to lift your heel off the ground.
COMPENSATION: Maintain good arch height the entire time. Make sure to keep constant pressure/weight on your foot for proper resistance training.