All you need for the one leg standing calf raise is a block or step and something to help you keep your balance. It's usually easiest to set the block up next to a wall or machine.
- Stand on the block with your left foot, the ball of your foot should be resting on the edge of the block.
- Hook your right ankle around your left ankle.
- Slowly let the heel drop as far as possible. This is the starting position.
- Slowly raise the heel up as far as possible.
- Pause, and then slowly lower the heel down.
- Repeat this movement for desired reps.