Note: I don't know if you are a professional dance art student. As long as you are a dance art student, you will know that there is a saying called exhaustion. Tendons are pulled apart because you didn't kick after pressing your leg, and tendons contract into a ball because you didn't kick and stretch. That would be painful. If this happens, you will have to kick your legs hard. If not, you will have to go to the hospital. Be sure to pay attention