Originally Posted by Richardsk
If you look at photos or video of top backstrokers the 'down' leg has a distinct bend at the knee, peusmably to get the whip that's so important on the up kick. Also in footage of Ryan Lochte and no doubt others it is very evident how much the 'up' kick goes to the side as the body rolls.
I don't see it. Here's Ryan: http://www.youtube.com/watch?v=7CmM_Z3Zt5U
. The 'down' leg doesn't start to bend until he starts whipping it 'up.' On the way down, it's virtually straight. He's kicking just like Terry does it.
Compare and contrast: http://www.youtube.com/watch?v=K3EY1...eature=related
. For madvet, there's a good clip in this of a man sinking in the middle when he bends his knee on the down kick. Excellent instructional video overall. *Straight* leg on the down kick.