Reduced Exertion High-Intensity Training (REHIT), a 10-minute workout with one to two 10-20 second high-intensity efforts, can improve VO2 max similarly to longer, lower-intensity training.

“So all that to say, we came up with a protocol that was three 20-second intervals, five-minute total warm-up and cool-down, and some recovery in between the intervals. So start to finish, the protocol took 10 minutes. And within that, there was one minute of very vigorous exercise. That was the one-minute workout.”

“But I think a lot of people are interested in that because there are different goals, as you mentioned. What are your goals? Are you an athlete? Okay. Then 80, 20, like there's lots...I mean, you're putting in the time no matter what. But there's also people...like anything. So there's those people with like, I can't think about, you know, doing, you know, maximizing what I can out of the VO2 max and squeezing the cloth and getting every last drop. I just got to like...I got 10 minutes or, you know, and I can only do that X many times, like, you know, four or five times a week.”