That's true, but it needs a lot of training. At ordinary times, we will use about 70% of the maximum weight that we can move for strength training, with 8~ 12 in each group and 4~5 groups at a time, so as to achieve the purpose of increasing muscles. If you want to lose weight through strength training, you should train with about 40% of the maximum weight, 25~30 in each group and 65430 each time.