I have never given the wrist position much thought when training arms, but the other day one of the trainers at my gym suggested that I should keep my wrists in line with my forearms when doing bicep curls. My natural position would be for my wrists to bend back (alowing me to lift more weight while keeping good form). When I tried it his way, I had to decrease the weight and felt it heavily in my forearms as well as biceps.
My question is this - is their a correct wrist position? or can one use different wrist positions depending on goals (IE: it seems that keeping a straight wrist would be great for forearm or grip development)?
What would be the suggested 'standard wrist position'?