No, it will not make the calf thicker after stretching. It is best to let the leg muscles not feel obvious pain after a period of time. If the muscles of the leg and achilles tendon are uncomfortable after jumping, you can jog for dozens of meters and then stretch. Besides skipping rope, you can also do some so-called leg stovepipe exercises. In fact, that kind of stretching also stretches the legs through different stimuli of various actions to achieve the purpose of stovepipe.