Originally Posted by Max_501
Feel free to share your alternate suggestions of getting forward. I'm sure there are others reading that would like to hear about them.
It's pretty simple actually. As I understand it, PMTS theory says the kinetic chain starts with the feet. If you do the movements down there, the rest of the movements become secondary or automatic. Remember Si's thread about
fore/aft balance and activating muscles to stay centered? Whether it starts from the feet or from the core, it does not really matter mentally how you change the relationship between the feet and the hips. If pulling the foot back is not working, consciously activating muscles to move the hips diagonally forward into the new turn can achieve the same effect of getting the inside foot pulled back.
For the smoothest, most efficient turns the center of mass needs to flow over and through the skis. PMTS teaches flexing the inside leg and extending the outside leg to make this happen. I'm going to claim that extending the outside (new stance foot) ANKLE needs to happen as part of that outside leg extension.It is my opinion that adding these two movements to your repertoire will replace the inside ski tip lifting and the the upper body leaning seen in this turn.
First off, the lifting here is very tiny and it's only clearly seen at the next to the last frame. Where the animation first stops, I want you to notice how far the center of mass is to the inside of the turn. Note also that this is where the most snow starts to fly off from the skis.
Also notice that the line drawn from ski tip to ski tip is not parallel to lines drawn from one shoulder to the other and along the belt line. At the start of the sequence all 3 lines are parallel. At this frame, the pole is fully extended out and the release movements are ready to begin. From here until the next freeze you can see the upper body lean into the turn. The hips are relatively frozen in place as the skis continue to finish the old turn. This is the point in the turn where I'd like to see the core muscles activated to start moving the hips forward and the new outside ankle begin to extend. BTW - I'd like to take the opportunity here to point out how strong this position looks. This is a wow position!
Look how much the inside foot would need to be pulled back at this point to get the 3 lines to be parallel. Look at how far the hips are still inside of the old turn. See the bend in the outside leg from the knee to the hip? This looks like weight too far back to me. See how much the back has become arched (is it in attempt to get centered or is it simply to check the pull back of the feet?). Imagine if the belly button was 3-5 inches more forward in the direction it's facing. Alas, from this position any attempt to lift the inside ski at this point must lift tip first. Sure enough that is what happens.
It's easier to see in motion, but this is the next frame where the inside ski starts to lift tip first. Note that the inside knee is still inside the old turn. If the inside leg was collapsing, the inside knee would be driving more into the new turn at this point. But it can't collapse and maintain contact with the snow because the hips are too far away.
This is the next to last frame. You can see the inside ski lifted off the snow. It's way too late to pull it back any more. You could say that you are flexing to release by lifting the ski off the snow. From here, the new stance ski must pivot to help get the COM to the inside of the new turn because the new free foot is not yet tipping to guide the turn.
It's not a lot of pivot, but there it is. Note that the 3 lines are coming back to a parallel relationship. From here, your normal PMTS inside ski tipping causes the rest of the turn to happen.
The problem I have with pulling the inside ski back is that where I see things starting to get out of whack (pic 8), if you pull the inside ski back (i.e. that if that's how you think about doing it), you're just going to get your COM further to the inside of the old turn. Are you trying to reduce tip lead by pulling the inside foot back or are you trying to increase it? Or are you trying to induce If you start extending the old inside ankle at this point, you'll be pushing that butt into the new turn and getting the new inside hip over the new inside foot at the same time.
I want to make perfectly clear that I am not recommending this course of action to Max. Harald is a far far better coach than I am. He knows Max a lot better than I do. I agree that a focus on pulling the foot back can eliminate the tip lifting of the inside ski and get more carving to happen at the top of these turns. I also acknowledge that with the hip movement of TDK's world cup racer, the tip lifting would be just fine. Maybe, just maybe, the picture of tip lifting on page 179 of ACBAES2 is the best way to ski. Although it's most likely that Max is simply getting top notch coaching and my approach is garbage, at the end of the day this could be just another case of different semantics. The odds that I'm actually on to something are too low for Max to waste his time on. Hopefully, Max will at least get something out of this little excerpt from his clip and I'll eventually learn a little bit about effective coaching. No matter what, I've had fun translating my instructor speak into a little bit of PMTS'ese.
Thanks again Max!