[traz]

Even without working out, 1000 cals/day seems very very low for someone your size. There's about 0 chance you gain muscle through this workout regime.

Also, do you do deadlifts? If not, you should. If you do, screw your lower back routine.

Edit-- I'd also be helpful if you outlined your goals (gain weight, lose weight, maintain weight, blah blah holla)