Showing posts with label moguls. Show all posts
Showing posts with label moguls. Show all posts

Sunday, October 10, 2010

How to Adapt to Skiing Moguls

by Robert Stewart

Moguls are one of those challenges in skiing that can strike fear into all but the most expert of skiers. The thing is, moguls can be our friends. Yes really, they can!

If you are comfortable skiing down groomed slopes at varying gradients then you will have the ability to ski a mogul field. I’m not necessarily talking about high speed ‘ripping’ directly down the fall-line or performing aerial manoeuvres like the pros. But it is achievable to ski smoothly and graciously down through a mogul field performing short radius turns like you might on your favourite groomed run.

Skiing is all about adapting to the terrain that we are on at the time. When we drive a car we adapt to the type of road we are using. For example, on a small winding road you would drive more slowly, probably in a lower gear, than on a straight major highway. Many skiers become locked into a certain way of skiing which works fine on certain terrain, usually groomed runs, because that’s what we mostly do. But transfer that technique to other terrain, like moguls or powder, and it might not work as well.

I’m not saying you have to change the way you have learnt to ski, just make some tweaks which help the skis deal with what’s in front of them.

Modern ski technology has enabled skiers to ‘carve’ out smooth turns on groomed runs with relative ease. This is great news because carving out high speed turns can be great fun. But, without going to much into technical detail here, what we are doing in these turns is basically pressurising the inside edge of the turning ski and letting the ski do the work.

I have seen many good skiers head into the moguls and continue to apply the same technique. What tends to happen is that very quickly they gain speed and cannot handle the impact of the moguls. They quickly get thrown backwards even though they understand the principles of flexion and extension crucial to skiing moguls.

For me, the simple solution to skiing moguls at any level is ‘rotation’. This means that we separate the lower part of the body from the upper part. Our legs work independently from out torso. We are steering the skis with our legs and feet. We still use our edges and we still pressure the skis, but in a different cycle.

For example:

Pattern of turning on groomed run > Pressure ski – Edge ski – Skis turns

Pattern of turning on moguls > Turn ski – Pressure ski – Edge ski

One of the best ways to improve our rotational skills is to practice side slipping. It’s not an exiting prospect I know, but a little bit of training here and there will pay off in the long run.

Side slipping involves keeping the skis perpendicular to the slope and sliding down at a controlled speed. It is often something taught to beginners as a safety mechanism to get down steeper slopes. In reality, it is a tricky skill to master but teaches us a lot about edge control and rotation.

The key to this is to pick a fairly steep slope on a groomed run. First, practice your side slip facing one way, then stop and turn around 180 degrees and practice facing in the opposite direction.

Start in a stationary position with the skis at right angles to the slope and about hip width apart. Ensure that your skis are angles so that the inside edge of the lower ski and the uphill edge of the upper ski are holding you in position. Then slowly release both edges simultaneously until the ski flattens against the snow completely and then control your speed by applying more edge as required. More edge means less speed.

The key here, and this is really important, is to make sure you don’t ‘drift’ from the fall-line. In other words you must side slip in a perfectly straight line down the slope. Build up your side slipping practice and then start to change your direction from facing one way to the other as you are moving. This involves releasing the edges and fully rotating the skis 180 degrees underneath your upper body. Again the key here is to keep side slipping in a straight line down the hill, even when changing direction.

Do ten to fifteen minutes of this a day and within a week you will see a big improvement.

Hey, get a bunch of people together and go to a slope with a short tow lift. Take your ski poles and mark out a straight line course down the hill by laying 2 sets of poles about 4 meters apart. Practice your side slipping and stay within the channel of poles. Make the channel narrower as you improve!

What’s this got to do with skiing moguls!! Well, become a master of rotation and all those tips about skiing on top of the bumps and flexing and extending will all become much much easier to perform.

Robert Stewart is an ISIA certified ski instructor who has over 20 years of teaching experience with all levels of skiers. He was formerly a professional freestyle skier and competed in freestyle competitions across the globe. You can find out more about Rob on his own skiing blog at http://blog.themountaindepartment.com.

Sunday, November 15, 2009

Skiing the Bumps - PSIA Video

I found an awesome video about skiing bumps and moguls that is done by Dave Lundberg of the Professional Ski Instructors of America (PSIA) Alpine Team. Dave is one of best alpine skiers in the world and skis with incredible style and grace (reminds me of myself). He is also an expert at describing and teaching skiing. He talks about some great tips, and the video provides great material for all you visual learners out there. Just follow the following link...

http://www.rsn.com/files/rsn-podcast/111509_RSN_PSIA__SM.mp4

Also, make sure to look at my own written post on skiing the bumps ("Skiing Those Things Called Moguls," 6 April 2009.)

It's already November. Think snow!

Monday, April 6, 2009

Skiing Those Things Called Moguls

Although bumps are a much different terrain than typical downhill skiing, there is a secret. You actually will use the same movements as normal skiing, just in a different fashion and using different tactics.

There are several different strategies to tackling moguls (metaphorically, not literally). You may want to vary yours depending on conditions, ability level, comfort level, etc.

Generally, the most common strategy (and the one I usually adhere to) involves the following:
1.) Plant your pole on the peak of the bump
2.) Turn on the side of the bump and across the back/downhill side of the bump.
3.) Continue your turn as normal.
4.) Stay in your turn until you slow enough to a comfortable speed while spotting your next bump to plant and turn around.

By simply focusing on planting on the top of the bump and then turning around its side, you will find a smooth rhythm that should help.

Note that this is not the same as skiing a "zipper" line down between the moguls like the pros. That requires much athleticism, strength, and endurance.

David Lind and Scott Sanders, in their book The Physics of Skiing, describe to readers, "When skiing moguls, the skier should unweight - that is, release the edge of the ski - at the sides of the trough where the normal force is reduced and then skid the ski using counterrotation of the body, which will set the opposite ski edge into the snow and initiate a turn."

A little technical, so let me explain. Basically, you are naturally going to experience some flexion and extension of your knees. Let them do this - don't go against it. You want to keep your hips the same distance from the ground so that your upper body doesn't bounce much vertically. The bounce is going to come from flexing and extending your knees underneath your body. Another way to think of this is that you will be picking up your skis off the ground and then landing back down on them.

Turning on the sides of the bumps, or ideally, the peak of the bumps, allows you to maximize your movements when the force on your skis from the snow is at a minimum.

Lind and Sanders summarize by writing, "Simply stated, this physical analysis shows that skiing a banked turn off the top of the mogul is the easiest and most effective strategy for skiing a mogul slope." Don't just take it from me - there you have it from the physics experts.

So, remember to NOT turn before a bump in the icy part where everyone and their brother tries to turn. Do turn on the peak of the bump where there is soft snow that no one skis on. This makes it much easier to turn your skis, and also is much easier on your knees and legs (especially beneficial to mature/experienced skiers and casual skiers).

Also, balance, the "Foundation for the Rest," becomes critical in the bumps. Make sure you have a good, central stance and that after your pole plants, you keep your hands and arms in front of your body.

Trying to keep it simple, this is what skiing the bumps all boils down to. Follow the above tips, and you'll look more like a skier and less of a linebacker on the slopes.