Thanks bro! I'm only slightly overweight not multiple stones or anything. I have just never developed strength in that area since I've never been able to do one. I need a heftier hand to try with. I have minimal home equipment having no gym membership. I do have one of those door frame pull up bars.
Gotcha - that changes things a little.
It could be that you're strong enough, but you just need to build the "skill" of doing Pullups. Not that they're extraordinarily complicated or whatever (like say like Olympic lifts). Rather, you just need the "practice" of utilizing strength you already have in that specific way. Building up those neural pathways & such.
If all you have is a doorway Pullup bar, I would NOT use bands or anything else like that. Most doorway Pullup bars aren't meant for strenuous use, so you'll wanna be as safe as possible on it.
I would go for a frequency-based approach - one that maximizes CNS stimulation & not muscle fatigue.
Still stick with Chins (palms facing you). Use a chair to step up into the "top" position of a Chin, and do one negative, lowering yourself as slowly as you can - shoot for say 5-8 seconds in the beginning, with the target (as you get stronger / better at doing them) being the 20-25 second range. Just do one of these.
After you do that, rest for a couple minutes to let your CNS recover.
Then do a normal set of as many reps as you can do. If you can't do a full rep, that's fine - pull as high as you can. Then repeat for as many reps as possible.
So maybe you do a 3/4 rep, then a 2/3 rep, then a couple 1/2 reps, then maybe a couple 1/4 reps, then another couple-few where you're barely pulling yourself up at all.
After that, you're done.
One negative + one max set like that = a "mini-session".
Do 3-4 "mini-sessions" like this spread throughout the day - one when you first get up, another a few hours later, another in the afternoon, another in the evening, etc.
If you can't do them throughout the day (e.g. - you can only do them in the morning & the evening before / after work), give yourself at least 45 minutes to an hour between "mini-sessions".
Then do this 4-5 days/week.
In the beginning, do a negative on only the *first* mini-session of the day - the rest will be the max set only. After you have the negative on that first mini-session of the day up to the 20-25+ seconds mark, go ahead and add the negative to *all* the mini-sessions.
Provided that you are pretty strong and not insanely heavy, this should have you doing at least a few Chins within a few weeks or so.