Hi,can anyone explain to me why you have to do 3+ sets to build muscle?,and does that mean 3+ each exercise, ie - for biceps
3 x 10 dumbell curls
3 x 10 preacher curls
3 x 10 hammer curls
or 1x10 of each which would add up to 3 sets for biceps
it's not the number of sets it's the number of reps that matter...you want 24 - 36 total reps per muscle group / movement for muscle gain which can be broken up into whatever sets and reps you want so long as the total reps fits in the 24 - 36 range (10 x 3, 4 x 7 etc)
it's not as simple as that although bodybuilders would have you believe it...whichever curl you do, you'll hit all the "angles", you can't train one side and not the other...if you want you can do 1 set of 3 different variations in one sessiopn or 3 sets of 1 variation each sessiop...either way you'll always end up doing 3 x 10 for 3 exercises just like you do now...oh and just a heads up, curls don't build big arms