Start by standing on a step or first stair placing heels slightly off the back of the step.
Feet/legs close to hip width apart and hold weight in the left hand.
Wrap right foot around the back of the left leg.
Lift left heel upwards as high as able engaging calf muscle.
Slowly lower heel back to starting position.
Complete specified reps on left leg then change hand with weight and repeat on opposite leg.
Aim to repeat for 1 minute on each leg