2 cents...
(Force) This was one of the arguments (or discussions) that Maurice and Rydin had with Fred Hahn and Superslow, as in SS you use a very slow cadence and no momentum whatsoever. So yes the loads used would have to be less.
Personally, I do feel there is a place for (lack of a better word) "cheating" and thus being able to overload the muscle (or get past the worst leverages) with more weight and some speed force than one is able to use with ultra strict form & slow cadence and hitting those areas with the least power.
If anything I might site oly lifters, as they use speed (plyometrics and or speed work in ways) that equate to great forces that the muscles (tendons and ligaments also) adapt to and thus get stronger.
I will also state here, that I am more about the strength than the mass, but I do feel strongly that the 2 have a relationship.
The Russians (from what I remember) believe you can so called pinken the receptors to take or develop more speed coordination so perhaps was born speed work!? Plus, one can apparently use force/speed work and in turn bump capacity and work the muscles and receptors but with less weight cutting into recovery)
Force or the generation thereof, IMO, does play a role in muscle/ power and strength gains.
Dr Ken's take was not in agreement with the Russian "speed work" as far as I remember per se, as he felt that becoming more explosive was probably something that was genetic and already set, but when addressing a slow deliberate cadence, he said he usually moved the weight as fast as he could with force. Now, granted it sounds like you would be slinging and cheating the bar around, but that is not true when you are using loads in areas of 75%-85% of say maxes, as the weight is heavy as in a deadlift, but you are still pulling with pretty much as much force as one can muster, especially near the end of a set. WHen I pull a limit DL, I am pulling as hard and as fast as I can.
The question is, that if you get stronger, do you get faster, say if sprinting!?
I always thought Mentzer (in his prime) was more about very intense perhaps single sets with negatives and forced reps. I was not really aware of him using very slow cadences, (at least when he competed)!?
Now, this may all be useless to some of you guys that are interested in BBing as I have no true proof or idea if a slow cadence produces good mass. I just don't know many BB'ers or top lifters who use it to the extent of such slow cadences. I have no doubt Yates was a monster, but I think his cadences were more in line with old Mentzer HIT stuff.
Someone can correct me if I am wrong!?
has anyone tried super high intensity training?
It shtinks...!