Interesting. Can you elaborate?
Great point. Bodyweight is another good option. Drew Baye wrote a book called Project Kratos, which is a bodyweight HIT workout he’s been refining for the last decade or so.
One of my favorite HIT trainers , Skyler Tanner, is an exercise physiologist in Austin TX. He spent a year doing Kratos and had good things to say. Drew Baye isn’t polished, but he’s been an HIT trainer for several decades and really knows his stuff.