Well I've got a problem. Last night I discovered my left bicep is vastly weaker than my right. I was doing curls and started cheating with my left. I was finishing up my first set (16 reps), and on the last rep it simply refused to curl. My right was still fine, I could have done another full set. The workout before that I had done a lot more in both arms before my left gave out.

I suppose this is just from being right-hand dominant and not very strong to begin with. Should I train just my left arm next time I do curls? It might help get it up to speed with my right. Or is it possible I have another problem, like a muscle deficit or something? So far the left bicep is the only thing that seems to be giving me trouble. I have no trouble with tricep extensions or forearm excercises.

Any help would be appreciated.

One of the tricks I have heard to even things up is to work the left side first and then don't do any more with the right than you could with the left.

I had the same problem -- My left bicep was weaker than my right. I basically just did what the previous poster said. Did dumbell curls and when my left arm gave out, I stopped (even though I could do more with my right). Also, on my last set, doing preacher dumbell curls, I did a few negatives with my left arm, but not with my right. Now they are roughly equal -- In fact, my left might be a bit stronger than the right now.

Symetry is the exact opposite of what we are doing everyday in real life outside of the gym, or our exercise rooms. Our entire movement pattern through each day is asymetrical. When we bend down to pick something up, we'll favor kneeling on one leg over the other. Taking things out of the trunk of our cars and pickup beds, we will almost always lean and rotate in the same direction or pattern that is most familiar to us. This is what the body has been taught, and this is the pattern that the body will most naturally follow. Hence, the uneven biceps, and if you look closely...you'll find this lack of symetry throughout your entire body. Look at the things you do in your daily life that are either left or right hand dominated, and you'll better understand the differences in both size and strength.
If you want to work on making your arms more symetrical, do the same amount of curls for both arms, stopping at the point where your weaker arm cannot do anymore. Eventually the body will adjust to this new movement pattern...the weaker arm will get stronger, while the stronger arm will not be worked as hard...but you will accomplish the appearence of being more symetrical through both arms.
*long version of the above statements :lol: *

Keep the reps equal for both arms. If you can do 10 reps left arm, then that is max for the right arm even if you can do more. They will eventually equalize.

HIIT MAN

focus on doing one armed dumbell movements.

Give each arm the exact same volume and use the exact same weights even though the stronger one can do more. Then, each workout try to add alittle bit of weight, or another rep, but only go forward on both arms when the weaker arm has advanced...

did that make sense? kind of hard to explain...

Interestingly, I tried to correct this problem by carrying things with my left arm exclusively (I used to do EVERYTHING with my right). The only thing this accomplished was making my left trap slightly larger than the right. Sometimes it is difficult to guess how such intentional shifts in movement patterns will affect your muscular devlopment.

Also -- my right rear delt is slightly larger than my left -- probably due to opening doors exclusively with my right arm....sigh. Asymmetries are annoying, but I don't know too many people who don't have them to some degree.

Symetry is the exact opposite of what we are doing everyday in real life outside of the gym, or our exercise rooms. Our entire movement pattern through each day is asymetrical. When we bend down to pick something up, we'll favor kneeling on one leg over the other. Taking things out of the trunk of our cars and pickup beds, we will almost always lean and rotate in the same direction or pattern that is most familiar to us. This is what the body has been taught, and this is the pattern that the body will most naturally follow. Hence, the uneven biceps, and if you look closely...you'll find this lack of symetry throughout your entire body. Look at the things you do in your daily life that are either left or right hand dominated, and you'll better understand the differences in both size and strength.
If you want to work on making your arms more symetrical, do the same amount of curls for both arms, stopping at the point where your weaker arm cannot do anymore. Eventually the body will adjust to this new movement pattern...the weaker arm will get stronger, while the stronger arm will not be worked as hard...but you will accomplish the appearence of being more symetrical through both arms.
*long version of the above statements :lol: *