The research I've seen "debunking" this have failed to start with people capable of HIIT, failed to prove they are going anaerobic, or failed to strictly follow

The research I've seen "debunking" this have failed to start with people capable of HIIT, failed to prove they are going anaerobic, or failed to strictly follow the "Tabata interval" regime that was originally proven to work. https://www.elevaterope.com/tabata-intervals/ https://www.elevaterope.com/tabata-intervals/ When I originally came across Tabata in mid 2000s, nobody said it worked for BMI adjustment. The research was around whether you had to exercise for hours to build endurance. It was reasonably conclusive you could build endurance using this mechanism. The contemporary research suggested the endurance came from different metabolic processes becoming accessible, and that Tabata style HIIT kicked that in.