I just defined it. Let me type it in caps:
QUADRICEP DOMINANCE, AS USED HERE ON THIS FORUM, BY ME, AND OTHERS, AT YOUR REQUEST..
DOMINANCE OF A MUSCLE GROUP REFERS TO THE AMOUNT OF FORCE PRODUCED BY A PARTICULAR MUSCLE OR MUSCLE GROUP OR JOINT EXTENSOR/FLEXOR/STABILIZER/ETC. AND OTHER MOVERS IN THE EXERCISE IN RELATION TO THE AMOUNT OF FORCE PRODUCED BY OTHER MUSCULATURE IN THAT GIVEN EXERCISE. DOMINANCE OF A MUSCLE DOES NOT REFER TO EMG ACTIVITY, IT REFERS TO FORCE PRODUCTION. PERIOD.
IN A POWER CLEAN, NOT AS MUCH FORCE COMES FROM THE QUADRICEPS AS IN A BARBELL JUMP SQUAT. THEREFORE, THE JUMP SQUAT IS MORE QUAD DOMINANT.
DOMINANCE OF A MUSCLE GROUP DOES NOT HAVE TO DO WITH JOINT ANGLES. FOR PEOPLE WHO DON'T CARE, IT HAS TO DO WITH WHERE YOU "FEEL IT."
DOMINANCE OF A MUSCLE GROUP IN A GIVEN EXERCISE WILL VARY WITH INDIVIDUAL BIOMECHANICAL DIFFERENCE,S MUSCLE ACTIVATION PATTERNS, AND NERVOUS SYSTEM. WITH ACTIVATION TRAINING, ONE CAN IMPROVE THE FIRING OF A MOTONEURON TO A MSUCLE GROUP BY LEARNING HOW TO CONTRACT IT IN A MOVEMENT, THIS CAN HELP WITH MOVEMENT EFFICIENCY IN RUNNING FOR ISNTANCE, JUMPING/SPRINTING.
DOn't compare a lunge to a squat, that's fucking RETARDED.
And we did not conclude properly on the studies I cited. It showed that power output from a jump squat is HIGHER than olympic lifts poewr cleans and hang snatches, using different measuring methods. It is not completely irrelelvant, I said there is more to the story. Just because you are obsessed with olympic lifts, whiach all suck for power development doesn't mean you know what the fuck you are tlaking about.
Lastly, front squat and high bar back squat are not redundant. they are actually completely different exercises. The way the bar is placed on your back has a HUGE impact on the way weight is displaced on the joints and muscles attached to them. Notice, front squat - quads dominant, high bar back squat - quad/glute, low bar - glute, less quad... see a pattern? hack squat.. glutes...the bar is moving back and back and bck and back.. can't compare deadlift whre bar is in front.
I've PRed heavy back squats the day after heavy front squats because they are just so different. The amortization in the back squat involves much mroe hip musculature whereas the front squat does not.