A secret to Pull-ups?

[youtube=http://www.youtube.com/watch?v=W6IGyrOs60o&feature=youtu.be]What’s the secret to getting a pull-up? Actually, there are two: proper progressions and hard work. Here, Colleen is working on Assisted Pull-ups. It’s a step above Ring Rows, but a step below negatives. The hard work is definitely there! Great work, Colleen!