Develop Muscles for PullUps?

Hi I wonder how one develops muscles to use in pullups?
Lately I have been using gravytron machine with some success but I realy love to develop strong arms for a chinup session.
any pointers as to how develop a and what group of muscles?

Thank you

Ermmm... to develop muscles for pullups, do pullups.

Simples.

If you can't do a single pull-up, I guess the logical thing is to do pulldowns or use one of those assisted pullup machines. At least those are the advice I use to see in muscle mags. But I think you should (in addition to those) do stuff like partial reps and even negatives. When I was a kid, I couldn't do one pullup on those stupid President's Fitness Test we did in PE class (I think that was what it was called) and didn't have access to a gym to do any fancy stuff. So I got a chin up bar and just kept trying to get one until I did, then I was eventually able to get more and more full reps.

[QUOTE=BloodySalad;842925441]Ermmm... to develop muscles for pullups, do pullups.

Simples.[/QUOTE]

C'mon man. There has to be an easier way. ;)

You mention pullups and chin ups. Chin ups are easier IMO and will help get you to where you can do a pull up which is what I think you want

There are programs to develop your pullups and increase reps, I'm sure a search in the exercise forum would bring some up. For me, I just got a door unit pullup bar and actually jumped/assisted with my legs to help me get up to the bar, and tried to come down slowly with some of the reps. Soon I was jumping less and pulling more and finally I was able to do pullups again. At 40 I think I was at zero - one pullup, now I'm closing in on 4 sets of 7. Anyway, inverted rows seemed to help also.

you can also try a variant of pull ups where you lie on your back, feet on the floor and using a smith machine, pull your torso up to the bar. these are easier than a standard pullup as you are liftin about 60 to 70% of your bodyweight.

[QUOTE=sricardo;842902541]any pointers as to how develop a and what group of muscles?
[/QUOTE]
Are you currently able to do any [i]un[/i]assisted Pullups/Chinups at all?

[QUOTE=sricardo;842902541]Hi I wonder how one develops muscles to use in pullups?
Lately I have been using gravytron machine with some success but I realy love to develop strong arms for a chinup session.
any pointers as to how develop a and what group of muscles?

Thank you[/QUOTE]
If you are training in a gym or you have the equipmnt, i would try doing as many pull ups including as many partials as you can do then move straight on to do lat pull downs (wide grip for pull ups and close grip for chin ups ) x 3 reps

[QUOTE=BloodySalad;842925441]Ermmm... to develop muscles for pullups, do pullups.

Simples.[/QUOTE]

Damn! and I just bought a whole jug of magic pull up pills :rolleyes:
Think I should return them????????????????????????