So i started riding my bike around lately as a form of cardio because after doing a tid bit of research it at least appeared that cycling was amazingly good at burning calories. Most sources say that pretty much cycling burns more calories than running which doesn't make a whole lot of sense to me. While i sort of can understand it maybe but running is infinitely harder on me, and then swimming at least at a competitive pace is infinitely still harder compared to running. So in order of difficultly Swimming>Running>Cycling, but according to calorie sources the actual calorie burn is Cycling>Running>Swimming. Is this true? and if anyone does cycle can someoen explain to me why 15-17 mph is considered vigorous? My bikes not some super amazing one but it's halfway there to a racing bike and i can average almost double than the "vigorous" thing. Is my mph measure off or what?
Pretty much i just wanna know if cycling actually does burn that much calories, because as of right now i can burn like 400+ (closer to 500) calories in under a half hour supposedly, that seems like a dam near godsend when i can break over (theoretically) 1000 calories an hour doing this.