Day 4 was back to winter conditions:
MonsterMan wrote:Max501, how many folded trail maps did you use as shims on top of the bootboard?
MonsterMan wrote:Trail maps on the bottom of the boot to lift the whole liner and foot closer to the top of the boot to reduce volume in a pinch, unless you have proper shims that is.
meput wrote: I still think Rob is slightly A framing/knock kneed.
meput wrote:Even with loose heel action, dorsiflexion of the foot (which drives the heel into the boot) will bring the lower leg forward and the ski back in relationship to the body, so free foot pull back can be accomplished by ankle/foot dorsiflexion at the same time as hamstring contraction.
meput wrote:I think fore/aft control with free foot pull back (whether boot fit/alignment help or hinder) and tipping are the important PMTS movements that need improvement. Which is the single most important movement that he need to work on, I am not sure.
Max_501 wrote:The knock kneed alignment issue is major. Unfortunately, the shims we used made only a small difference.
Max_501 wrote:a result of the pull back is pressure on the tip of the ski which will lift the heel in a loose boot. We purposely moved away from fore/aft work because we didn't want Rob developing a heel blister.
Max_501 wrote:Rob's tipping is pretty good considering the strong knock kneed alignment. In this case fore/aft will be the more important movement but it will be difficult to learn the strong foot pull back movement he needs without proper fitting boots. Note that Rob needs more than just an inside foot pullback to get properly balanced.
meput wrote:You may have felt frustrated that you could not correct all of the misalignment, but there is a significant improvement from the Day 1 videos with the taped on cants. As a result, Rob made significant improvement in his ability to tip.
meput wrote:With strong dorsiflexion, the heel is driven downward while your CM moves forward. This will prevent movement of the heel upward even in a loose boot. It is plantar flexion of foot/ankle that lifts the heel and may put you at risk of sufficient movement to develop a blister. Pull back with hamstring action and dorsiflexion of the foot to bring the CM forward.
meput wrote:If he does not continue to focus on fore/aft and tipping, I think it would be easy for him to slip back to rotary movements and up/extension release (and the marching toy soldier hands).
Max_501 wrote:I'm sorry, but I have to disagree here. There is only a minor improvement with the shims.
Max_501 wrote:meput wrote:With strong dorsiflexion, the heel is driven downward while your CM moves forward. This will prevent movement of the heel upward even in a loose boot. It is plantar flexion of foot/ankle that lifts the heel and may put you at risk of sufficient movement to develop a blister. Pull back with hamstring action and dorsiflexion of the foot to bring the CM forward.
Is the above true when you are moving on a skis? Does this movement pressure the tip of the ski, and if so, what happens at the heel?
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