Exercise Advice: This exercise is performed just like the seated barbell calf raises, except that you will be using a dumbbell instead of a barbell and you will use one leg at a time. Place a dumbbell across one of your upper thighs so that the bar of the dumbbell is what is touching your leg (hold the dumbbell in place with your hand). Place your toes on the ground and push your toes down so that your heels become raised so that you are on your tippy toes. Be sure to really flex your calf at the top of this movement for a one-count. Return to the start position and repeat with your other calf. The initial upward movement should be quick and explosive.