I would definitely recommend the Inzer belt as well. I use a 13mm double prong and absolutely love it. You'll become so much more confident in your lifts and see some great gains.
Doing supine pull ups is one of the best excersices, as wel assisted pull ups. The only way to really accomplish them is doing more and more reps. As well try working on doing the negatives. Doing...
Try hitting about 1800calories a day or even less, but keeping protein intake levels at the same point. As well try reducing carbs to as little as possible. Personally when I've been losing weight...
Lower your reps, and up the weight your doing. As well as said earlier only do a couple of initial warm up sets. Aim for about 4-6 reps when doing a working set. As well do a split that is...
Just eat more, like what is so hard about that. Have protein shakes with you all the time. Bring food with you whenever you leave the house. It's not a hard process.
Everyone else has basically covered everything that needs to be said. Your obviously not that muscular at 112lbs; your just skinny. So you should be doing a starting strength workout routine. From...
Bulk up! There is no reason to consider getting skinnier you'll have no muscle left. When you get to that skinny fat point you need to bulk up it's too hard to loose that tiny little amount of fat....