Lie on your back on the Reformer with your head supported and spine in neutral.
Place the balls of both feet on the foot bar, hip-width apart. Keep the legs extended (for gastrocnemius focus) or slightly bent (to bias the soleus), depending on your goal.
Begin with heels lifted, in a gentle plantarflexed position, as if standing on tiptoes.
Inhale to prepare. As you exhale, press through the balls of your feet to lift your heels fully into a calf raise.
Inhale and begin to slowly lower your heels, allowing them to drop just below the foot bar, creating a controlled stretch through the calf and Achilles.
Do not bounce—keep the descent smooth and muscle-controlled.
Exhale to rise again onto the balls of your feet, repeating the heel raise.
Complete repetitions as prescribed by your physiotherapist.