LIGETY’S ROLL OVER EXPLAINED


In order to maintain the continuity of the ongoing discussion of Ligety’s Moment of Truth, I have changed the title of the series of posts on ROLL OVER to LIGETY’S ROLL OVER EXPLAINED. Although Roll Over is not exclusive to Ligety’s technique, the association will enable search engines to find and link the two series of posts.

4 comments

  1. From what I can see from watching Solden footage, Ligety’s boots have power straps, which contradicts your post about the insignificance of power straps.

    My question: Why does he, and the majority of other World Cup racers, use them? Do they actually need to decelerate their forward movement? If the margin for error is so small while using a power strap, my initial thought is that it would be more detrimental to use them than to not – per your recommendation.

    Thanks

    1. Which post are you referring to? I have never taken the position that power straps are a bad thing, quite the opposite. I ski with with them. The problem is that they are being used the wrong way. The critical issue is getting shank angle right. I call this functional position the Shank Reference Angle. It has to work in conjunction with net ramp angle. Skiers and racers usually have to go through an out of the boot kinaesthetic training process to learn shank angle. Then the boot cuff or ‘shaft’ has to be set up so that the shin contacts the inner face of the tongue just as the load under the ball of the foot and eccentric muscle contraction of the triceps surae/hamstrings peaks. There should be a small amount of fore-aft free play of of the shank within the bot shaft. At this point, the power strap has to be adjusted so it is slightly loose, not cinched tight as many skiers and racers are doing. When external forces overload the triceps surae, the power strap intervenes to decelerate forward movement of the shank by pulling on the stiff rear spine of the shaft of the boot. When the spine recoils it pulls the shank back so triceps surae can re-assert itself. When the set up is right and the power strap is properly adjusted there should be no feeling of hard contact of the shin with the front of the boot shaft.

      1. Shaft, shank and power strap integration all make sense now. Thank you.

        Now on to pronation to fully understand. I have a general idea, however, I still need to solidify how I would make pronation work in my own boots.

        Thanks again.

      2. I am just doing a fit session with a ski pro who has never felt right on his skis. He sensed something was wrong. But he couldn’t figure out what it was. He was coming to Whistler for the season. So I agreed tow work with him. The first thing I had him do was send me video of him skiing. Within seconds, I could tell what his problem was. I had him get new ski boots. First, I taught him how to assume a strong stance. Then I had him try to stand in his boot shells. His foot was hung up on the inner sides and the fore foot was much too narrow. I marked the interference spots and had the shell expanded. I am posting photos of the fit session soon.

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