[quote]Jorge Garzafox wrote:
Coach Thib’s
What auxiliary exercise can help me develop the quadriceps muscles?
Off course being an Olympic lifter I do squats, front squats, cleans, that in most people that would develop the quadriceps muscles, but in my case they don’t seem to grow.
Most of the time when I do squats I don’t feel the muscles of the legs working that much.
Any suggestions?
My max snatch is 115 kg and c&j 150, front squat 170kg, back squat 190 kg
Thanks for the help!!
[/quote]
With those liftss you must have one powerful ass if your quads are small 
It’s hard for me to make any specific recommendations without seeing your body type and squatting technique, still here are some painfull technique used by Pierre Roy , who coached the last Canadian to win an Olympic medal in weightlifting and Jean-Pierre Egger who coached wold shot put champ Werner Gunthar (who could power clean 200kg for reps).
1 - Jump squat/Super slow squats contrast
A1. Jump squat using 30% of your max squat for 10 explosive jumps
no rest
A2. Back squat (or front squat if you are game) lowering the weight in 5 seconds, lifting it in 5 seconds without locking out the knees. Shoot for 6-8 reps
2 - Three pauses squat (or front squat)
Do a squat and on the CONCENTRIC (lifting) portion of the movement perform three 3-seconds pauses:
- Just above the bottom position
- At parallel
- halfway to the lockout
Shoot for 3-5 reps
(note that this technique will also greatly help you recover from cleans)
3 - Stutter squats
Before each full repetition, perform 3-5 partial reps at the top of the movement (quarter squat)… a set could look like this:
- quarter squat
- quarter squat
- quarter squat
- full squat (rep 1)
- quarter squat
- quarter squat
- quarter squat
- full squat (rep 2)
- quarter squat
- quarter squat
- quarter squat
- full squat (rep 3)
- quarter squat
- quarter squat
- quarter squat
- full squat (rep 4)
- quarter squat
- quarter squat
- quarter squat
- full squat (rep 5)
NOTE: do not lockout the knees after any of the quarter reps
4 - I remember a former olympic record holder (190kg in the clean & jerk), who was a great friend of mine, who told me that leg extensions greatly helped him increase his front squat… take it for what it’s worth.