[Note: Originally I used the terms "counter balance" and "counter movement." My posts in this thread have been subsequently edited to use "counter balance" and "counter acting." This more closely match the terminology of Harald's new book.]
Sorry for the long post, but I have been gone a long time and so I have to catch up. By the way, Valle Nevado, Chile is a great way to spend the summer.
I?ll weigh in here and give you 3 things. First a definition of terms. Second answer why a PMTS model uses the terms it does avoids more common uses of ?counter.? Lastly, how about a few practical exercises to get started on this stuff.
1. The use of counter is traditionally pretty vague/ambiguous in use. In addition, it is often used in a way that is incompatible with a PMTS model. Therefore, Harald has been pushing for the use of the terms "counter balance" and "counter acting."
These two terms (secondary movements) are quite specific in PMTS. They fall under the overall category of counter movements and they combine to create the Upper Body part of Lower/Upper body coordination.
Counter balance is the muscular effort of crunching of the shoulders sideways, down towards the skis. The direction is opposite to, or against, the tipping of the skis. This is why John describes it as putting the body in a ?C?
This is the most important secondary movement for maintaining balance at slow speeds (when gravity is primary and the forces developed in the turn are very low). An example of an exercise that isolates this is the following railroad track task. Glide across a fairly flat slope. Keep the skis flat and equally weight them. Now start tipping the free foot (you can lighten slightly if you want) and let both skis go onto as high of an edge as you can manage. Make sure that the stance ski is not edged more than the free foot ski. Do not widen your stance. As the skis tip on edge and the turn develops, crunch with the obliques directly sideways toward your skis to maintain balance. If you do this at very, very slow speeds and you not counterbalance, you will simply fall over. The more you tip the more you must counter balance in reaction.
If you widen your stance to avoid falling over, you will not develop the secondary movements necessary to maintain dynamic balance. Instead, you replace balance with static stability.
Counter balancing the upper body against the tipping action of the skis that creates the turn is simply necessary to maintain balance.
counter acting is the turning of the hips and upper body to the outside of the turn. First, this counters any rotation of the upper body in the direction of the turn. Second it allows the stance leg to straighten out more easily when the skier is in high angles thereby avoiding steering in the upper leg and making the leg more structurally strong. Lastly, it provides greater counter balancing effect then by using counter balancing alone. By adding counter acting, the upper body can stay upright more easily because the skier can recruit the muscles in front of the stomach and bend forward at the waist (forward in relation to the direction of the hips) rather than just isolating a lateral muscles and bending involved in counter balancing alone.
Harald believes that counter balancing is more important when gravity is more in play and counter acting is more important when the skier is balancing against the forces of the turn. In my experience, counter balancing alone takes more effort. It?s like doing an oblique crunch every turn while skiing. You can move your body back into balance over your skis more easily by simply turning your hips to the outside of the turn. Now you can use a more natural bending movement at the waist.
I believe that counter balance and counter movement are hierarchical. That is, counter balance is most effective and easiest to use and control early in the turn and at slower speeds. However, as the forces of the turn increase and the tipping angles get higher, it gets harder to increase the counter balancing effort to level that is needed. Also, in practical terms most people just have an upper limit (either in strength or flexibility) for how much they can counter balance. So as the turn progresses and the angles/forces get higher, it becomes easier to add in counter movement.
Though the two movements are usually used in concert they are distinct and I think might be best learned in sequence. However, if there is even a minute amount of ?into the turn rotation,? most of the good effects of counter balancing are destroyed. So in actual skiing, a skier will benefit from at least a small amount of counter acting right away in the turn.
There is a qualitative difference between using ?into the turn rotation,? and a very small amount of counter acting at transition. Once this can be achieved, then one can talk about adjusting/increasing the quantity of counter acting to match the edging effort of the feet. Until this is achieved, even a little amount of rotation creates a turn that is headed down the opposite path of an effective turn.
2. So why not just say ?counter? and be simple, but leave it somewhat ambiguous.
There are two reasons. First PMTS breaks the big notion of counter down into the two component parts as specific movements. This is much better for understanding the contribution of these movements to various effects and problems. It also means that instructions can be very specific and tangible.
Second the notions of counter in other systems of skiing are very different in purpose than the equivalent concepts in PMTS. Often counter is seen as a tension that one creates as the turn develops. It is a form of anticipation that is released at transition, so that it aids steering (or redirection) into the next turn. This keeps both the upper body and the lower body going in the direction of the turn and is therby supposedly more efficient.
I have over-heard regional instructors events in which the directions are explicitly to keep the eyes and upper body facing down the hill, allow the skis to ?ski? into a counter against the upper body and then release the skis and aloow them to unwind into the direction the skier is looking. All of this is at the least very different than PMTS . Personally, I would say more strongly that it is the opposite of PMTS.
In PMTS counter balance and counter acting area set of movements in reaction to tipping. They are done to maintain balance, structural integrity, and maximum pressure in the face of edge angles. Their function is to make higher edge angles possible and easier. Secondarily, they counter natural tendencies to steer, rotate, and flail.
Instead of facing in the direction of the new turn as you transition and steer your legs where you are looking. PMTS advocates changing edges without changing direction and then counter balance and counter acting in the OPPPOSITE direction of your turn. That is the recipe for the highest edge angle as early as possible. Go upside down to the slope with both the lower and upper body.
While learning these movements in the release you might hear to look up the hill away from the intended direction of the turn. However, later in the learning process, PMTS instructors tend to drop this way of talking and avoid references in relation to a direction down or up the hill -- this just leads to confusion. In PMTS these movements are done only in relation to the tipping of the feet, irregardless of where they are pointing and they have nothing to direction on the slope.
So, I would argue that the concepts of counter balance and counter acting are more specific and often quite different in purpose than other more common notions of ?counter.? As such they deserve to be distinguished from them and that is the reason for the special terminology.
3. A few practical things for counter balance.
You can work counter balancing exercises in many ways.
To start, it is easier to practice the movements to enhance engagement in the bottom half of the turn. However, eventually, the same movement will be used to enhance the release and develop ?high C? engagement. Using these in the top of the turn is more difficult and gets harder, but more necessary as the slope gets steeper.
a) Start with some static drills on flat ground. Stand with equal weight on each ski. Tip your skis in one direction (remember to start with the new free foot and match the edge angle of the stance ski to the free foot). As you tip then skis as far as you can, counter balance with the upper body. See how far you can tip the skis while counter balancing and still maintain balance. Flatten the skis and release the counter balance. Tip again in the same direction, counter balance again; etc. Tip and counter balance in the other direction.
Addition.: when you are in your maximum edge angle lighten the free foot and pick it slightly off the snow. Balance on the stance leg by using a counter balancing movement in the upper body.
b) on a relatively flat slope, moving very slowly, tip and counter balance then flatten; Tip again in the same direction, counter balance again; etc.
Additional note: if you have trouble getting into the tip and counter balance, use a slightly steeper slope, but still gentle enough to be very slow speed. Face slightly down the fall line. Tip and counter balance while not moving. Now, begin to push yourself with your poles. Maintain tipped angle and counter balance until moving without pushing. Balance. Flatten and tip again, or start over.
c) As you traverse steeper slopes (often good for running across to a lift or other run) Tip up the hill and counter then flatten to the slope and allow the tips to glide down the fall line a little, tip and counter back up the hill. Tap or lift the free foot and try balancing on one foot on edge.
d) Flat slope, facing at a shallow angle to the fall line, tip and counter balance in one direction; flatten, then tip and counter balance in the other direction.
e) On a relatively flat slope with some movement and using very shallow turns, edge and counter balance and then roll through flat and onto the other edges. Counter balance in the appropriate direction to maintain balance. The higher angle to which the feet tip, the more counter balancing movement must be used.
f) On a relatively flat slope with some speed, edge and counter balance and then do a small hop (not a big jump with your whole body. Instead, just pull your legs off the ground in a small hop.) While in the air roll the skis through flat and onto the other edges while counterbalancing. Land on the new edges in a counter balanced position.
g) Do d-f above on slightly steeper terrain. Even slightly steeper becomes really challenging. Because you have to commit to going upside down to the hill with your skis, yet maintain balance before a direction change.
Note: There is often a tendency to do various movements to avoid having to rely solely on tipping versus counter balance for balancing. Some people will want to widen their stance. Some will widen along with going to big toe edge of the stance ski first (oppose the edges in the old and new direction to make the transition more stable. Others will want to steer into the turn with their upper body to get the balance over their new stance ski and down the fall line where it?s easier to balance without effective upper body movements. Avoid all of these temptations.
All of these exercises should be done with ?a change of edges with no change of direction,? then wait for the edges to change the skis direction as you learn to balance (i.e., go for the ride while direction change happens). This takes real patience. I?ll tell you, as you use these it?s very hard to keep from doing any cheat moves. Everyone at every level can benefit here.
This is your time to DEVELOP your balance. Don?t cheat. If it ain?t hard, then up the stakes: tip more; Do it on steeper terrain; do it in more difficult or more uncomfortable conditions, etc.