Teenagers can lose weight by jumping several ropes a day.
About 200 varies from person to person, so it's best to do it several times, because it's too tiring once. For teenagers with incomplete development, it is better to divide them into groups and plates. 1 group has two sections, one section is 25. Finish an exercise, rest for a minute, and then do the next lesson. When a group is finished, they can rest for two minutes and then continue.