I used to be fat, but I have been dieting through exercise to lose weight. I used to run a lot in the early stage, but I also had the same situation as you, that is, my calf became thicker. Later, I heard from the PE teacher that I have to walk for 10 minutes every time I finish running, and then pinch my calf with my hand, which can effectively prevent my calf from getting thicker! Now that my weight is normal, I don't run much. The main thing is to go quickly, and the effect is very good! ~ weight has not rebounded! ~