Hello, swimming has a stronger slimming effect than running. Swimming slimming is a kind of slimming exercise in water, which discharges a lot of sweat. Swimming for a long time will streamline your body. Running is a land slimming exercise, and the slimming effect is not as high as that in water. A large number of running exercises in a short period of time will cause thick calves, which are often called muscle legs, but they can be relieved by massage after running.