by jbotti » Wed May 03, 2023 8:46 am
Flexing at the hips is another way of saying bending at the waist. In PMTS we want to flex at the knees and not bend at the waist. Not really sure what" pushing skis forward using my knees" means. What muscles are you using? If you are pulling your feet back and that is causing more knee flexion and that position is causing tip pressure, yes that's very PMTS.
Suggestions: flex at the knees, not at the waist and use aggressive free foot (or both feet) pullback at the top of every arc. It is a lot harder to pull ones feet back when bent over at the waist because your COM is too far forward and from this position if you pulled back to the max in range of motion you would likely fall forward over your skis. Hence its a very limiting movement (bending at the waist especially to the degree one needs to in order to get forward pressure on the tips). Extension is often a substitute for foot pullback and it creates a bad cycle of standing, bending at the waist, not being able to fully pull the feet back hence our balance is aft, even more aft coming out of the arc, hence the need to extend again as an attempt to get the weight forward, thus starting the cycle all over again.
The drill cure, is to work on short radius brushed carved turns on groomed terrain, where every release is a flex move followed immediately by foot pull back. There is only one cure for chronic extension and it is deep flexion to release every arc. Like sit down and get you knees at right angles (yes massive exaggeration of the flex move) as you release every arc and do it for 2 full ski seasons. Obviously, that's not the final product. Once one is no longer extending, moderate flexion in many arcs is all that is needed but you need to teach your body to exaggerate the movement and really know when you are flexing vs extending in every arc and this is the way to be able to tell and to retrain your movement pattern. Its much easier to learn how to flex a little less than to learn how to stop extending (or you wouldn't still be extending).
Balance: Essential in skiing and in life!