Chin-ups are an awesome upper body workout and one of the best exercises to build upper back muscles. Couple chin-ups with a good push-up plan, and you soon will be selling tickets to the gun show!
I was very excited to get a chin-up bar for Christmas. I had one
![chin up bar](http://www.myfitnesstunes.com/wp-content/uploads/2010/01/chin-up-bar.jpg)