@Philipp Josef Wansch, good question. I was mainly using the overcoming isometric for high force production as part of a contrast/PAP sequence. I set the Smith machine at roughly the midpoint of the squat and loaded it heavy enough that he couldn’t move it, so the goal was just maximal intent and force into the bar. From there we went into weighted DB jumps, a drop jump, and then band-assisted overspeed jumps. So we were basically working from high force/low velocity toward lower force/higher velocity. His knee was bothering him that day too, which was a big consideration. I wanted the rest of the movements to stay relatively light and explosive without putting a lot of additional load through the knee. The overcoming iso let us get a high-force stimulus without having to load up a heavy dynamic squat. For volume, I keep these pretty low. I care more about maximal intent and quality than accumulating a bunch of isometric work. How often I use them really depends on the athlete, where we are in the training cycle, and what I’m trying to get out of that particular session. For him specifically, my program this within the last four weeks of his camp for some fighters, for example like a 45 year-old boxer that I have sometimes I was adding it to the beginning of the camp for her. It just depends on what kind of adaptation we need and how soon we need. I program the isometric as such it is four rounds in total each round contains three sets of the movements and each set contains three repetitions of four second overcoming isometric. I may increase the set or time under tension as the weeks progress, and depending on the subjective and objective feedback I get from the athlete