Ive been training for a few years now, but im finding it really hard to isolate my lats. I do wide grip chins, lat pulldowns, deadlifts, one armed dumbell rows. But they still dont wanna grow. I need some help. Cheers
with lat pulldowns you have a tendency to cheat or jerk the weight down like many guys you see in the gym they pile on way too much weight and do not pull with proper form the whole key to working the back is to 'contract' the lats and thats why they are not responding what you should do is freehand pullups,chinups and weighted chins once you get to about 20 reps lots of guys have built a wide back with chins alone with those theres absoloutly no way of cheating.
You want to concentrate on pulling your scapulas together and really try to contract your lats. It is possible that you are using too much of your arms. Try pre-exhausting your arms and then doing your back work-out. The weights will be less, but you will be using more lats and less arms.
Try doing close grip pulldowns instead of wide grip. Stretch out good at the top of the movement and pull all the way into the chest. I really like these.