The first thing you must do is understand what a perfect rep is. You must choose the right compound movement that can best replicate a perfect rep. This is primarily accomplished with machines. Both plate loaded and stacks. Efficiency versus energy expenditure. Many variables effect TUT. Rest pauses, mid range partials. A rep is just a unit of time that we assign to a three part phase of movement. Positive, static and the negative. Super slow is out as you must sacrifice to much intensity due to loss of shear resistance decrease. I know nothing is really explained here. My training is a Variable form of HIT requiring multiple sets...
