How fast? If you're thinking 2 weeks, forget it. If you're thinking more along the lines of 8-12 weeks, then it's possible.
I always hear ppl talk about low weight, high reps. But that didnt work for me. What did work for me was HIGH weight, LOW reps. Somewhere in the range of 6 reps, with a weight that doesnt allow me to do more than 6 reps even if my life depended on it. (btw, get a spotter!) If I did more than 6 reps, then I knew it was time to move up in weight.
Also, I ate a lot during this period. About every 3-4 hour was meal time. Nothing big and no junk food, just some protein and carbs in each meal. First thing in the morning, I'd eat. First thing after a workout, I'd eat. I was eating about 160-200 grams of protein per day. (I weighed ~155 at the time.) After about 6 weeks of this, I had gained about 10 pounds, and noticed a lot more muscle definition. All my muscles were stronger, and I had increased my bench by about 30 pounds, so most of that 10 pounds was muscle. I had gained a bit of fat too, but I was already pretty lean to begin with. I probably should've done some cardio, but I could never get myself to do it.
I suppose you could go a completely different route: do all cardio. That will probably make you look more cut (depending on how much muscle you already have), but you'll look skinny too.
While high reps didnt work for me, some ppl swear by it. So, who knows. Oh, and no matter how you decide to split up your workout days, remember to mix up the exercises. Sometimes I'll notice that an exercise will become my favorite (cuz it becomes easy), and realize that I have to change my routine.
dfi
edit: almost forgot. I was also trying to keep my fat intake to about 35~45 grams a day. A small can of tuna has 32 grams of protein, and only 1.5 grams of fat. I was eating 2-3 cans a day. Open a can and eat it w/ bread. Gets boring after a while, but hey, I cant cook! Also, you might want to be careful, since some fish have a high mercury content (due to the polluted water they swim in), so you might want to look that up before going on a heavy fish diet.
I always hear ppl talk about low weight, high reps. But that didnt work for me. What did work for me was HIGH weight, LOW reps. Somewhere in the range of 6 reps, with a weight that doesnt allow me to do more than 6 reps even if my life depended on it. (btw, get a spotter!) If I did more than 6 reps, then I knew it was time to move up in weight.
Also, I ate a lot during this period. About every 3-4 hour was meal time. Nothing big and no junk food, just some protein and carbs in each meal. First thing in the morning, I'd eat. First thing after a workout, I'd eat. I was eating about 160-200 grams of protein per day. (I weighed ~155 at the time.) After about 6 weeks of this, I had gained about 10 pounds, and noticed a lot more muscle definition. All my muscles were stronger, and I had increased my bench by about 30 pounds, so most of that 10 pounds was muscle. I had gained a bit of fat too, but I was already pretty lean to begin with. I probably should've done some cardio, but I could never get myself to do it.
I suppose you could go a completely different route: do all cardio. That will probably make you look more cut (depending on how much muscle you already have), but you'll look skinny too.
While high reps didnt work for me, some ppl swear by it. So, who knows. Oh, and no matter how you decide to split up your workout days, remember to mix up the exercises. Sometimes I'll notice that an exercise will become my favorite (cuz it becomes easy), and realize that I have to change my routine.
dfi
edit: almost forgot. I was also trying to keep my fat intake to about 35~45 grams a day. A small can of tuna has 32 grams of protein, and only 1.5 grams of fat. I was eating 2-3 cans a day. Open a can and eat it w/ bread. Gets boring after a while, but hey, I cant cook! Also, you might want to be careful, since some fish have a high mercury content (due to the polluted water they swim in), so you might want to look that up before going on a heavy fish diet.