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The Importance of Intensity Interval Training
There's some research that like five minutes total per week of high intensity exercise leads to equivalent or better cardiovascular fitness than than six hours of training. If you can go out and do one sprint, like for 30 seconds a day, like a few times a week and get pretty significant cardiovascular fitness from a full out sprint, that's wild. And if you can't physically do a sprint, you can get on an exercise bike and go really hard. Or you can just walk up three flights of stairs or, you know, it's interesting because there are people at different levels of exertional capacity. The main benefit is that because most of them are concentric, you're actually increasing the number