STRONG BACK LIKE A TRUE BOXER?? HOWTO

heya all,

I'm 20 yrs old, I got 166 pounds. Now, I've been training boxing for about 6 months now. Not very actively, cuz in my town we aint got no boxing gym. So I bought a hard bag for home workout. I've been concentrating on my boxing technique lately, although I've started out more because of fitness reason.

So..my question would be...which exercises would I have to do to have strong back like the true boxers have. I'm not very heavy so I don't need no huge muscles, but I would like to develop all these tiny muscles on my back, including the bigger ones of course :)

Would the trick be just to do alot of heavy bag punching or does it mostly depend on the weights workout programme?

Thank you

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