I never heard of this until today, when I read this discussion of a few 50+ gentlemen:
https://fitbod.me/blog/metabolic-resistance-training
"It is actually doing mostly bodyweight exercises back-to-back with no or little rest in between. It is a kind of marriage between cardio and resistance training. "
https://fitbod.me/blog/metabolic-resistance-training
"It is actually doing mostly bodyweight exercises back-to-back with no or little rest in between. It is a kind of marriage between cardio and resistance training. "