Originally Posted by BigE
IMO, a large number of folks that are in wonder of how anyone can ski all day simply ski inefficiently. The most energy use is at initiation, but the real fix is at release....
Sorry, but this directly contradicts reality. First, most people aren't "in wonder" of how someone can ski all day. They are in wonder of why some people ski all day, as they understand the compromises this entails.
If someone is interested in skiing as well as they can, they may not be interested in skiing all day. Many folks that play basketball choose not to play all day, because, you know, you can't play your best all day. Many folks that choose to ride a bike choose to ride at a fast pace for a short period of time, rather than tour a hundred miles in a day. This is obvious common sense stuff, but here on Epic I guess some old folks like to toss aside common sense and look for some silly way to feel superior.
To suggest that those who ski for less time are therefore skiing less "efficiently" is an exercise fraught with peril, but I'm not interested in discussing this obvious ego trap. More interesting to me are your technical assertions about what is "efficient".
First, what do people on the hill actually do when they are tired:
-they compensate in many cases by sliding around in what I suppose you would call an "inefficient" manner.
-trade mental effort involved in skiing faster for physical effort by "completing" their turns and spending more time headed across the fall line, reducing the number of turns while still keeping speed in check. If you take it to the logical extrme (which unfortunately, some idiots on the hill actually do) it also reduces the amount of effort needed to finish the turn by so grossly reducing the accelerations involved. This is the "slow-line-fast" for scared people so popular here at epic, and so unpopular amongst everyone else sharing the hill with you.
The lowest effort way to get down the hill is not the prettiest or most technically correct. Linking good turns down a steep pitch is necessarily more work than linking weak turns that end in feathered edges sliding down the hill. Another low effort alternative is to simply ski much faster, although that is mentally tiring and also a very bad idea if you aren't physically there. Turns of any stripe require almost no effort to start, just a bit of thought and subtle movements. The only turn I know of that requires significant physical effort to start is a hop turn.
If you actually believe what you just stated....that the most effort you put into your skiing is at the start
of your turn...you are doing something horribly, horribly wrong.
Originally Posted by big e
'In general, these methods all hold onto the turn just until the body is travelling in the desired direction. Then the CM gets released and the body is allowed to cross-over the skis... Again, allow the skis to come around...."
No matter how you start your turn, the CM is going to pass over the skis. As noted, I'm not aware of any way of doing this that requires significant effort, aside from hop turns on shallow pitches.
"Allowing the skis to come around" defeats one of the best energy management tools skiers (particularly tired ones) have. As the top half of the turn requires the least exertion as evidenced by Newton, it is the most intelligent place to carry out an adjustment in speed. Pivoting the skis at the top of the turn and allowing them to fluff snow as you decelerate across the hill reduces speed without increasing the energy used to get the skis coming across the hill in the first place. Deceleration by sliding on skis is "free" in that it requires nearly no effort, contrary to popular carving myth BS the sliding ski is doing the work, you merely make subtle adjustments to the edge angle and the distribution of your mass between your two legs. Acceleration by holding onto the edge longer in the turn requires much effort indeed.
The same simple thought applies to the end of the turn. Allowing the skis to slide indeed requires less effort than cleanly finishing a turn, but it still requires far more effort than managing energy at the top of the turn and is therefore more rarely used by good skiers in my experience. It is best used for making gross adjustments in speed. Its most common use is therefore on steeper slopes where the need to manage speed is the greatest.
All skiing is an effort to manage the conversion of one's potential energy. The simple truth is that movements that look weak and ugly are often the ones that convert the most energy to heat for the unit of energy used by the skier.
Outside of Epic world, technically good well defined turns are not good at all on this bang-for-your-energy-buck meter.
So called "dynamic" movements are not the least work, though they are universally regarded as superior to weak "static" moves.
Hmm, a sport where investing more energy can achieve greater results? Impossible! Heck, if you all believe this so much, what are you doing in the fitness forum? Who needs strength or endurance when doing things the Right Way supposedly lets you do it all day?