I've been able to do pullups for a couple of years now. They have always been a favorite exercise of mine. I'm able to add weight, too. I can do bw +30lbs for 10 reps (+35lbs for 6-8).
This is all with a slightly-wider-than-shoulder-width-grip with palms facing forward, by the way.
Over the last month or so, I'm having a problem. The problem is that for some reason, I am now using my biceps WAYYY too much when performing pullups. My lats feel as though they are being used secondarily if anything. This just started happening out of no where. I've been doing them weighted for almost 2 years without ever having this problem.
This is in turn ruining my back workout because, besides taking my lats out of pullups, by the time I'm ready for barbell rows or seated cable rows, my biceps are barely usable and it makes stabilizing the weight borderline impossible.
A few months ago I switched from pullups to the lat pulldown (to change things up) and when I switched back to pullups again a few months later, this problem seemed to start.
Like I mentioned, my grip is already ideal for taking biceps out of the exercise as much as possible, so I know it's not that. Everything is being done the same way I always did it, it's just that now, for some odd reason, my body thinks it's a bicep exercise.
So what I'm wondering is, how do I get pullups back to normal? And by normal I mean getting my lats to do just about all of the work while my biceps just kind of assist rather than what it is now, which is the opposite of that.
Thanks in advance for any help.