Bondarchuk said what T0dday just said; that improving general strength only helps beginners and does not help with elite athletes. he syudied throwers though, and found that the strongest squatters wwre definitely not the best throwers. the best throwers certainly were nlt weak howeevr in the squat.
I think this is dead on.
Bondarchuck found that impoving general strength improves performance in beginners, intermediates, and lower level advanced athletes. Thing is most of us discussing here and most of the athletes we will be coaching fall into these categories.
Even then he also found that improving strength in some exercises improves performance in elite athletes. So it comes down to figuring out what carries over to what. I think the full squat does not carry over as well to sprinting as a narrower stance (hip width), hip loaded, 1/3 squat (just above hamstring parallel). squat.
So then the question is What is a squat?
The other question is why are we squatting?
I call my variation a performance squat. I started using it after watching my fastest athletes squat and move. This is what they generally gravitated to. Cal Deitz uses a similar squat that he calls the sport back squat. Are we full squat, ATG, powerlifting, front, hi bar, lo bar, performance?
Then thinking about levels of athletes. Beginners and intermediaes may benefit most from full squats or SS style. Even advanced athletes in the general strength phase or when in strength maintenance mode (keep in mingd any strength training is GPP). Beginners and intermediates should get after it. Advanced could program like easy strength or even easier strength. This way they lift heavy, not hard. the fatigue doesnt interfere with the SPP. The performance/sport squat is more of an SPP squat and suited as we start focusing on competition.
why are we squtting is to increase strength, to move the force velocity curve over, which improves power output. You can get stronger in squats, lunges, deadlifts, etc... doesn;t really matter.its strengthening the thighs and hips that matters.
wow this rambled a bit
Moral of the story is get stronger in the hips and thighs (squats and deads are most time efficient) As you advance decrease the volume of these lifts in the program. Still lift heavy, but not hard. shift more focus onto spp type stuff. Unless you judge sporting imprvement on an annual or semi annual basis (you get better 1-2x/year) you are an intermediate and strength will still help. somewhere around an advanced intermediate stage move towards a less voluminous approach.