How do I get thicker Biceps?

[TOkidd]

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[M302_Imola]

I agree that narrow-grip chins work the bi's much more than wide-grip chins. Using an an underhand grip does involve the bicep even more, amd dependimg on how the exercise is performed, it can work the bi's more or less.

Still, the way I see it, on back day you should concentrate on working your back, knowing that most back exercises (chins & rows) are going to hit the biceps as well. I consider this an important supplement to regular bicep training, but the focus should always be on isolating the lats, not the bi's, so I avoid an underhand grip when doing narrow-grip chins, and instead do them with my palms facing eachother. On bicep day, I do a variety of curl exercises, because this is proven to be the best way to isolate and work the bicep.

I'm not saying that chins (and rows) can't be useful for bicep developments, but I personally do not do chins on bicep day. On back day I focus on using my lats far more than my biceps (so I avoid grips that involve the biceps too much), but my bi's still get a good workout.

Do you do chins on back day as well as when you work your biceps?

I agree with what your saying. I do overhand chins (concentrating on the lats making sure to point my chest upward) on back day and then do narrow grip underhand chins sometimes on bicep day. Works out nicely since there's 4 days in between when I do back and biceps.