Like my teacher, leg press, who helped us, never showed mercy, and almost held it down with the weight of the whole person. We often cry and shout, but we cry even harder. Think about that day, it was really terrible! I didn't feel pain at first, but after a few days, I will feel sore all over, and sometimes it is difficult to walk. This is the place where I always take a hot bath and then let my mother massage and draw my menstruation (it hurts when I play! ), it will be fine in a few days.
The above is not a very scientific answer, but it is definitely based on personal experience in learning dance for many years. Maybe you don't think the answer is enough. I suggest you ask your cousin's dance teacher. I believe there will be an answer. I hope you are satisfied! thank you