In order to maximize fat loss, we must elevate growth hormone secretion, minimize insulin spikes, improve muscle insulin sensitivity, and keep cortisol under control. This is best achieved by keeping training sessions brief, brutal, basic and intermittent.

Which of these approaches are you using HIT, HIIT...or HIIRT and why? My fat loss really kicked into gear when I started doing HIIRT.

Here's a great article describing each -

HIT, HIIT…or HIIRT? | Ancestral Momentum