Lying down or slightly reclined with a rolled-up blanket under your ankle so that the back of your knee is off the bed; straighten your knee as fully as possible.
Hold for 5 seconds.
Repeat 10 times.
To increase the stretch on the calf, wrap a rolled-up sheet or large towel around your foot, holding the two ends in your hands. Pull the two ends so your foot is pulled towards your head.
Hold for 5 seconds.
Repeat 10 times.