Not that quad exercises are only good for aesthetics ... Aiming for 3 exercises per muscle group in a given workout is a good goal. According to research, 5-10 sets per week per muscle group ...

researchers specifically looked at hypertrophy of the quad muscles at the front of the upper thighs in a group of men.

Group 2 increased their training volume to an average of 19 quad-focused weekly sets ... concluded that engaging in 12 weekly sets per muscle group can be just as effective for building muscle ...

Muscle imbalance occurs when one muscle group becomes disproportionately stronger ... posterior chain remains relatively underworked. This quad dominance pulls the patella out of optimal tracking ...