Main Muscle Worked: Calves
Other Muscles Worked: None
Equipment: Dumbbell
Mechanics Type: Isolation 
Tips: Place a block on the floor about 12 inches from a flat bench. Sit on the bench and rest a dumbbell on your upper left thigh about 3 inches above your knee. Place the ball of your left foot on the block. Raise your toes up as high as possible. Squeeze your calves, then return to the starting position, stretching as far down as possible. Repeat for your desired number of reps and then switch legs.

Main Muscle Worked: Calves
Other Muscles Worked: None
Equipment: Barbell
Mechanics Type: Isolation 
Tips: This is a great option to calf training without fancy machines. From a standing squat position with a barbell on your back, perform a standard calf raise, but as you return your feet flat to the ground raise the toes off, hence “rocking back.” Now a word of caution to those over-zealous types: perform with caution and get the feel of the exercise as tempo should be slow with total control. Can also be done by holding two dumbbells in your hands.