A lot of Conor fanboys are saying that wrestlers have better cardio than boxers. Let's take a look at their argument. If you were at the gym and then put 200 pounds on your back, your glutes would get tired after squatting 10 times. Is this "cardio"? I'm sorry, but wrestling is not cardio. You hug and press against each other. Your glutes may get tired out, but this is not the same as boxing. The word "cardio" means heart. Boxers have a better heart rate over 30 minutes. They do jump rope and work on the speed bag. Boxers have to have good footwork, head movement, parrying, combinations, and even clinch work.