I've had a few questions recently from people struggling with chins so thought it would be useful to share a few tips. Unfortunately, just hanging around with your arms locked out is never going to get you anywhere (and it doesn't feel good either when you can't move!)
So how do you improve? Try eccentric chins. Your body can control a lot more weight during the lengthening phase of a movement. Think about squat or bench; the lowering is fine, it's the push which is where we usually come unstuck. For chins, you should be able to control yourself better on the downwards part of the movement so this is where we start working.
Jump onto a bench so you're in the start position with your chin over (or as close as you can get to) the top of the bar. Kick your feet off and try to hold momentarily at the top, lowering slowly for a count of 6 seconds (this maybe 1-2 seconds at first). Get back on the bench and try again...your only aim is to lower as slowly as possible whilst maintaining good posture.
Try for a set of 5-8 reps and progress as you would with any other exercise. Increase reps and sets, and keep trying hard! With enough perseverance you'll be onto full chin-ups in no time!
Let me know how you get on...
The video is on my Facebook and Twitter pages! Sorry, I can't get the direct link to work!