Question on exercise?

[bIgHwN86]

I have been getting into reading on westside training and each article written by Dave Tate and Louie Simmons mention an exercise called pull-throughs...my question, what the hell is a pull-through? Is it a back exercise?

[Anthony]

http://www.bsu.edu/webapps/strengthlab/exdetails.asp?exid=200

[Adam]

There mainly for your glutes and hammies. There a really good exercise.