concentration curl form?

[the5thhorseman]

I saw many times how a concentration curl is performed. You put the elbow on the inner thigh and curl outwards from you. However, recently I've done kind of the opposite, put the elbow to rest on the side of the knee and curl inwards. I perform this exercise at the end of my back/bicep workout and lift heavy 6 reps or so, supersetting it with preacher curls for another 4 reps. What I noticed is if I do it my way I can do more weight. I was wondering what the benefits are of each form and whether I should continue to do it like that or the normal way, or do both?

[ZoranM]

Do it the nortmal way, standing with your arm hanging straight down instead of being on the thigh, at the end of the workout, light weight, 12-15 reps, no cheating, good controlled reps.

[MuscleTechIan]

Agree with ZoranM,

Personally I prefer to do them standing with my arm hanging down.

Also, supinate your wrist slightly at the top of the movement to engage more muscle fibers in your bicep.