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-Kibbles-N-Tits- t1_ivfbr69 wrote

“Low intensity” he’s specifically referring to zone two cardio, which every type of athlete has to do a lot of to maximize performance

Just look up “aerobic exercise and mitochondria” https://www.trainingpeaks.com/blog/zone-2-training-for-endurance-athletes/

I just picked one of the first ones there but yeah, google scholar will take you to better ones if you add stuff like meta-analysis or review to it

Idk if what they said about high intensity was true though

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