From a purely physical standpoint, especially kids, bodies need time to rest and recover. In my training (certified personal trainer), we were taught to do 3 weeks on, 1 week off. The problem with that is you have to know yourself. If that week off makes it almost impossible for you to start up again, maybe you should do more like 3 days. With cheer being year round, I usually have cp rest for those breaks and have her do lots of stretching and foam rolling during them. If she starts to get antsy, we might do a camp or something. Rest is really good/important, but not so much that you get out of shape. You wouldn't want to spend the week off laying in bed with a bag of chips, but use the time to focus on eating healthy and doing light physical activity. If the scheduled break was more than a week, I would definitely be conditioning during. A couple of weeks off does make a difference in your stamina.