Originally Posted by Rick
Gary, fantastic comparison to analyze. There are some very important distinctions to be pointed out here and some and some key technical applications going on. I'll comment on what Greg, Jasper, and others say in their responses, but I'm also going to offer my own.
OK, I'm back and ready to get started on the comparison of these links Gary provided us:http://www.ronlemaster.com/prints/s...AltaBadia-1.jpg
Bode Miller GShttp://www.ronlemaster.com/prints/s...r-bormio-2a.jpg
The Bode montage is fantastic for illustrating some very sound technical applications. I'll go frame by frame.FRAME 3:
Bode is coming out of the falline and beginning his cross hill journey. Notice the significant counter Bode is employing, as indicated by the contrast between the direction his skis are pointing, and the direction his torso is pointing (look at his bib). There's a good reason he's using this much counter in this particular turn, which I'll explain later.
Also notice the bend in the outside ski (compared to the lesser amount in the inside ski), indicating outside ski pressure dominance. This is a result of the counter, forward flexion at the waist, and knee angulation he's using.FRAME 4:
Bode has his direction change completed and is beginning to extend his inside leg (ILE). This is going to remove the pressure from his downhill (old outside) ski and transfer it to his uphill ski. Because he hasn't moved his CM/CG laterally this extension of the leg will create a state of imbalance and cause the forces to drive him back to neutral and into the new turn.
Notice the degree of counter has increased from the previous frame. Clearly his skis have changed direction more than his torso has. Why's he doing this? Simple. He's preparing to do a pivot entry (PET) into his next turn. The counter will serve to twist his skis down the falline upon pressure release as the body attempts to return to rotational alignment. In the old days this move was call anticipation. It's like torsionally loading a spring, then releasing it. The spring snaps back to a neutral state.
Also notice his fore/aft balance. He's moved CM/CG back and is pressuring his heals. This is classic Bode. He's working the tail of the ski to gain acceleration out of the turn. He'll catch up to the skis with a nifty little trick through the transition that I'll explain later.FRAME 5:
Bode has executed a very powerful extension of his inside leg that is disengaging both of his skis from the snow. He disengaged in this manner because he needs to so the pivot can take place. If we could see the uphill ski we would see that pivot has already begun. In a straighter turn on flatter terrain where a pivot wasn't necessary his extension would have been more subtle and contact with the snow would have been maintained.
His CM/CG has now returned to lateral neutral, but it's still slightly back behind his feet. That's about to change.FRAME 6:
Bode is still pivoting. Notice how much direction change has occurred in the skis between this frame and the previous frame. This direction change would not have been possible if he'd tried to make it by carving. (are you reading Harb?) Also notice the lack of any reverse camber in either ski. He's clearly still completely disengaged.
Now this is where the fore/aft trick I mentioned earlier takes place. Do you notice that his CM/CG has returned to fore/aft neutral? He did it by projecting his CM/CG down the slope while his feet were still moving across the slope. The result? Instant catch-up. He's able to work the tail as much as he desires, then quickly return to a fore position for the entry of the new turn through the use of a strong inside leg extension that drives his CM/CG aggressively down the slope, combined with a pivot that changes the fore/aft relationship between the feet and the CM/CG. Pretty neat, huh?FRAME 7:
He has now regained contact with the snow (post pivot) and is feathering into his new carve. Notice how little direction change in his skis has occurred between this frame and the last. It's indication that the pivot is over and carving is taking over.
The down the hill projection of his CM/CG which occur in frame 6 has placed it well inside his feet and directed pressure onto his inside ski (Notice the bent inside ski and straight outside ski). He doesn't care. It's still the top of the turn and forces are low because gravity is working to neutralize centrifugal force. He knows shortly the orientation of gravity to centrifugal force will change, and as that causes the turn forces to grow pressure will be directed to the stronger outside leg.FRAME 8:
That lateral pressure shift I said would occur is taking place here. The forces are building and driving pressure outside without Bode having to make any body position changes to make it happen. Check out the amount of reverse camber in each ski. Very close to even. The lateral balance shift is under way.
Also take a moment here to look at the direction Bode's torso is pointing in frames 3 through 8. Check out the direction his bib is facing to see this. Not much change, is there? Now notice how much his skis have changed direction through the course of those same frames. About 90 degrees, isn't it?
That's what's meant by the term SKIING INTO (some say THROUGH) COUNTER. Notice how skiing into/through counter changes his rotational orientation through the different phases of the turn. He starts very countered prior to the transition in frame 4, goes immediately to rotated in frame 4, then gradually works his way back to countered, all without having to do any torso rotation. A very simple yet functional economy of motion.FRAME 9:
The lateral pressure transfer I talked about in the last two posts has continued to the point where the outside ski is now pressure dominant. See the greater bend in the outside ski?
But look,,,, something else is occurring here. The torso directional orientation that I pointed out was remaining constant from frame 4 through 8 has come to an end. Bode is now driving his outside shoulder hip, ski, and foot forward and changing the directional orientation of his torso. Check out how much the direction his bid is facing has changed in just the time since the last frame.
How's he doing that? Could he be using the crossing muscles of the stomach to accomplish that rotational realignment? You bet! There it is friends; Bode waist steering. Even though inside ski pressure is not dominant, he's using the pressure he does has there as a platform and pivot point from which to lever his waist steering and hyper drive the outside ski through the carved arc it's traveling along. Pretty cool stuff.
Like I said Gary, nice montage choice, there was a lot happening here to be seen and studied. I'll do Herman next, then comment on the essays.