When you pressure the tips, the ski bends more
Well, except when it doesn't. A lot of "ifs" have to be in place before your statement becomes true. Like, "If there is enough edge angle," etc., etc.
When you pressure the tips, the ski bends more
Are there instruction religions in tennis?LOL. Imagine if this crew had to discuss tennis.
Not so!This is truly a case of glass half empty/half full.
OkWell, except when it doesn't. A lot of "ifs" have to be in place before your statement becomes true. Like, "If there is enough edge angle," etc., etc.
“1. Use our body weight and lean forward. But if we do this, our heel comes up. So it's not so effective to achieve what we want.”
I’ve heard this interview with JB and had a lot of eyebrow raising moments as a result. But the above quote is the one that just seems beyond ridiculous to me. Why he thinks that balancing with our weight “forward” would necessarily cause the heel to come up is beyond me. Not to mention that it makes me question his bootfitter! Lol.
It is absolutely possible (and in my book desirable) to center our weight over the forefoot/ball of the foot while maintaining firm contact of the heel on the boot sole.
And depending upon how we decide to position our torso over our feet by using different degrees of flex in our ankles, knees and hips, we can accomplish this with either an open or closed ankle.
Good luck with that.When you pressure the tips, the ski bends more, so you shorten the turn radius.
It's still a carved turn
Btw, the reason for pressuring the ski tips is so you can vary, or tighten the turn radius.
Are there instruction religions in tennis?
Firstly an edit for my previous post: I am a strong believer in skiing from the feet, my advice to relax feet was really only for those who have tried to use their TA to do all the heavy lifting as described in some posts. Relaxing feet will give your excruciating TA a break, shift some load onto your hamstrings and get you down your last run without calling patrol for help. Yes, I have tested it out, yes one's TA can really, really hurt.
There is a difference between coaching cues and a working mental model of skiing that you can take on the hill with you. I have no issue with any of the TA coaching cues, but it is presented as a model and when taken that way it does not work. It assumes a particular problem which not everyone may have and it seems to assume complementary muscle activation which may or may not happen (credit to @François Pugh for the idea of complementary muscle activation). If you add a lot of context to what is written, the issues I have with it potentially go away.
An addition... just saw a reply by @Mike King to your comment "When you pressure the tips the ski bends more." That doesn't make sense to me. Once the edge of the ski bends to contact the snow then it cannot bend any further without deforming the snow. The Jurij vid also shows that. Surely the only way to get more bend is more angle so the edge has more room to travel?
Well, except when it doesn't. A lot of "ifs" have to be in place before your statement becomes true. Like, "If there is enough edge angle," etc., etc.
As we see from the vid if we move the center of pressure forward the back of the ski dis-engages. So any loading of the front, without a corresponding unloading of the tail can only be momentary. This is a point Jurij Franko keeps making. He also points out that the sum of all torques on the body is zero or else we will rotate.
When you pressure the tips, the ski bends more, so you shorten the turn radius.
It's still a carved turn
@markojp, why do we have to get to the forebody of the ski prior to the apex of the turn? How does that affect ski performance?Yeah.... not really IMHO and experience. Sure, we need to get to the forebody of the skis above apex, but at apex, we have to bend the whole ski. Ankles closed, weight and pressure directed toward the outside ski, and pressure on the inside ski. If we need to tighten the arc, just shorten the inside leg (and keep that inside foot under you as the inside of the pelvis rises to make some more room), and the ski will bend in a tigher arc. Just pressuring the tips often leads to the school of the ineffective rotary stem.
Thanks. Personally, I think of it somewhat differently. The skis are accelerating as you tip and turn them downhill. As a consequence, the CoM has to move forward to keep up with the acceleration of the skis. But I don't think that it requires pressuring the front of the boot -- in fact, if I find myself on the front of the boot, I've moved too far and I do not get the impulse in the finish of the turn as the tails wash out and add drag.Pressure probably isn't the word I'm looking for, but we have to find the front of the boot and tip the new outside ski on edge with enough pressure (ok, pressure ) to start the process of managing centripital forces that are rapidly approaching. In the moment as the skis flattens and our CoM is moving in a shorter path down the hill that our skis, yes, we might open our ankles and find the 'squirt', but we'd better be sorted to get our feet back under us. If we're on our tails as the ski is tipped on the new edge, we're probably doomed to a life of back and in... unless we have the superhuman strength of 20 and young 30 something WC skiers. Clear as mud. There. Fin.
You may be interested in this Tom Gellie / JFB interview where there's this discussion on pronation.
I'm not saying that pressuring the tip of the only thing you do, of course you need to get big or bigger edge angles too.Yeah.... not really IMHO and experience. Sure, we need to get to the forebody of the skis above apex, but at apex, we have to bend the whole ski. Ankles closed, weight and pressure directed toward the outside ski, and pressure on the inside ski. If we need to tighten the arc, just shorten the inside leg (and keep that inside foot under you as the inside of the pelvis rises to make some more room), and the ski will bend in a tigher arc. Just pressuring the tips often leads to the school of the ineffective rotary stem.
JF is a vastly better interviewer than Tom G. He listens, recreates what was said, and brings up relevant and interesting questions that get more out of the subject. He'll also remember things and bring them up again.You may be interested in this Tom Gellie / JFB interview where there's this discussion on pronation. There a
Pressure probably isn't the word I'm looking for, but we have to find the front of the boot and tip the new outside ski on edge with enough pressure (ok, pressure ) to start the process of managing centripital forces that are rapidly approaching. In the moment as the skis flattens and our CoM is moving in a shorter path down the hill that our skis, yes, we might open our ankles and find the 'squirt', but we'd better be sorted to get our feet back under us. If we're on our tails as the ski is tipped on the new edge, we're probably doomed to a life of back and in... unless we have the superhuman strength of 20 and young 30 something WC skiers. Clear as mud. There. Fin.
Thanks. Personally, I think of it somewhat differently. The skis are accelerating as you tip and turn them downhill. As a consequence, the CoM has to move forward to keep up with the acceleration of the skis. But I don't think that it requires pressuring the front of the boot -- in fact, if I find myself on the front of the boot, I've moved too far and I do not get the impulse in the finish of the turn as the tails wash out and add drag.
Mike
Are you saying that you keep flexing your legs in a turn as the turn forces increase?In terms of carving a turn, consider that shin to boot pressure is a result of and in direct relationship with the managing of centripetal pressure through the arch/footbed. The more the turning force increases, the more we invoke the flex complex (ankles, knees and hips) to activate the associated muscle groups. The more I flex, the more the shin moves into the boot. When carving, If I focus on edge building and maintaining balance through the arch, I don't have to worry about my COM, it will be where it needs to be. Regarding the inside foot, I do want to keep that underneath because not to do so destroys the workings of the flex complex for that leg.
Now, in a rotary induced redirection, I do intentionally pressure the tongue (off center) because I am taking a "shortcut" to the carving state but once there, any shin to boot pressure is as stated above.