by Harald » Wed Nov 01, 2006 4:09 pm
One of the biggest controversies in skiing is still whether you should be using stiff, flexible or medium flex boots. Most of the PMTS coaches use a boot that is at least a 130 flex equivalent in a Doberman. Diana and I use a 150 flex, boots which is the Head RD, World Cup.
Over the last 10 years Diana has evolved from a better then average full-cert PSIA instructor level skier, to a top masters racer, as well as a competitive USSA racer, competing with the junior ranks.
During this period of time there has been a definite evolution in her ski boots. I use Diana as an example, because I was able to observe the transition and improvements of her skiing based on boots. I have always used stiff boots so there is a biases toward stiff ski boots. So it isn't fair to use me as an example for evaluating or comparing.
In the past years Diana has moved from Dolomite to Dalbello and now she's in a head RD 150 World Cup. Every time we made a boot change, the boots got stiffer and narrower, both laterally and fore/aft.
We know Diana has improved her performance. It is based partially on boots, mental attitude and also technique. Stiffer, tighter boots have made the difference for her mechanically, because she has a very loosely constructed foot, what we call a pronating foot.
As I said in the first post, the first day on snow is a great opportunity to understand and have insights about your skiing movements that you might not notice in the season. One of those movements is pulling the feet back and keeping the hips above or in front of my boots. The first day especially, on steep slopes,it is not unusual to have your skis run out in front of you. I think this is what skiers are talking about when they say they have difficulty staying forward. I understand what it's like to have my feet move forward when I don't want them to, this always seems to happen on the first day or the first few runs of the first day. So I make an adjustment to my fore/aft position, this adjustment involves physically using the hamstring muscles and pulling the feet under the body and keeping those hamstring muscles under a certain level of tension. If that tension disappears, the feet shoot forward. This is why I try to keep pressure at the back of the heel bone, as I pull my feet back that pressure increases.
Now let's connect pulling the feet back and holding the hips forward, to stiffness of boots. I do feel comfortable with my hips up over my boots or in other words, my feet back under my hips. I notice that using the front of the boot to give me an idea of where I'm standing over the skis, is a great help. Although I do not lean on the front of the boots, I do feel constant touching or pressure on my shins. If I were in a boot that was soft, every time I would pull my feet back, and try to stay in a forward position, with my seat over my feet, a soft boot would flex forward and away from me.
When you are trying to establish a consistent fore/aft position in a soft boot front, it is not a very reassuring feeling, as its hard to really know where you are standing when the boot cuff is moving.
Every time you want some resistance to establish your stance the boot flexes away. A continually flexing boot doesn't support stance over the center. If you do not go to the front of the boots while skiing you are back of a centered position. The boot should not only support where you want to stand, but be an indicator for your fore/aft balanced position. If your skiing involves a large range of fore/aft movement and the forward movement especially is quick or sudden, you will take a beating in a stiff boot. The question arises, is a better to continue to use a soft boot that does not support a centered stance or is it better to deal with a back stance with a soft boot to absorb your sudden movements? Will you ever find a comfortable attainable centered stance in a soft boot?
A soft boot will reinforce a back stance because it does not allow you to develop the confidence to move your hips up or your feet back, as support at the front from the ski boot isn?t there to hold your mass. A centered position is one where the hips are extended and the legs are extended. Skiers believe flexing is part of skiing as a position not a movement. Skiers should by extended through more of an arc then flexed. Flexing should only happen at the point of release. Most skiers don?t get out of the flexed position.
Back to the first day on skis, after skiing for an hour or so I began to notice I was not losing my balance to the rear chair position. While this was happening, I was analyzing the difference in my stance, the new one that allowed me to stay balanced. I definitely noticed that my hips were projecting into the front of my skis and boots as an extension of my legs. This may sound confusing, but it is part of how I describe how I stand on my skis.
The forward lean angle of my shin out of my boots, when they are touching the front of the boot, is the correct leg angle. What does go wrong from here, is that skiers are too flexed in the legs at the knees, which puts the hips low and in a rearward position. Our ability to apply pressure to the front of the skis and boots comes from the area around your seat or your hips. If it moves back or flexes down, your ability to apply pressure forward is totally gone.
If I lose the contact pressure over my boots, especially the contact to the front, and to the side of the boot, I know that the front of the ski isn?t biting the snow. So I am constantly looking for this pressure in and to the front side. Once I find it, and establish that?s where I want to stay, I don't have to think about getting forward. The sensations of skiing in fore/aft balance include an upright feeling on the skis, feet behind the hips and of the hips driving toward the boots.
The upper body also has a role in fore/aft balance. If you watch, especially the taller world cup racers, they are often bent forward at the waist near the end of the turn. This gives them more mass to work with over the feet, to lever or to pull the feet and skis back under the hips to begin the next arc.
Unfortunately fore/aft balance has limited movement awareness, identifiers. And moving forward in skiing is very specific to the sport, few other activities include this movement in daily life or other sports. I hope this post helps to bring awareness and motivate skiers to spend more time on learning what fore/aft balance really means.
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