Instructions
Stand with one foot on a platform that is approximately 10-15 cm high. Have the other foot on the ground with the heel in line with the toes of the raised foot. Now straighten the leg that is on on the platform, by pushing the heel down onto the platform and bringing your entire weight onto that foot. Come back up on to your toe, bending your knee, bringing the other foot back to the ground. Repeat for the desired number of repetitions, then repeat on the other side.
Tips
The foot on the platform is the working side, don't push up off the floor with the foot on the ground. The point is to push back with the heel with the foot that is on the platform.
