THE 2-MINUTE RULE FOR CAGE STREET WORKOUT

The 2 higher than sound Bizarre to me. These are pretty much the only details on which each online video I've seen do agree (as in "do bend your knees, do elevate your heels") Hinging without having bending the knees / shifting the hips down ? How ?I'd desire to take a vo2max take a look at but below in Italy they do it with a treadmill or even a b