First exercise: The starting position is lying on your back. Pull your feet strongly towards you and then away from you. Feel the tightness in your calves. Repeat the exercise 10 to 15 times.
Second exercise: In the same position, circle your feet in both directions - first to one side 10 times, then to the other side 10 times.
Third exercise: Alternately bend one leg and the other at the knee, sliding the heel on the floor. Repeat the exercise 10 times with each leg.
Fourth exercise: Raise one leg and make movements as if riding a bicycle. Do 10 rounds, then repeat the same with the other leg.