Massage can relax muscles, accelerate blood circulation, really take away some impurities, and also calm swollen muscles and make them look smaller. . . But the actual weight of muscle has not decreased, because the only way to reduce it is consumption. In other words, if you do aerobic exercise for a long time, as far as massage is concerned, half an hour a day is enough. You don't have to use too much force, just massage gently.