The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
And so some of those studies have looked at the effect of interval versus continuous training on cardiac output. And they've shown that more vigorous or more high intensity exercise may be associated with greater improvements in stroke volume and cardiac output, as opposed to the same dose or same total amount of continuous moderate intensity training.
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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it's thought because you know V2 Max cardiorespiratory Fitness to get those changes to get those improvements you really have to increase cardiac output um so the stronger the signal the strong the more intense the signal the adaptations are greater so your body responds by improving the delivery of oxygen to your tissues right
And so that's one of the reasons why HIT is so effective because it increases your oxygen demand more. It forces your heart to work harder and you're improving that that stroke volume.