Come into a seated position on an exercise mat with your legs extended in front of you and your torso upright. Bent your right leg slightly so you can place your right foot flat on the floor. Take a long resistance band and loop the centre of it under your left foot, gripping either end of the resistance band firmly in each hand. Using the resistance band, pull your toes towards your shin. You should feel a deep stretch in your calf. Hold for the recommended amount of time, then repeat on the other side.