- Basic Dynamics (skis parallel)
- Skating/Adductors
- Advanced Dynamics
- Everting the Feet
- Ankle Flex (Anterior Tibialis contraction)
- Pivot
- Combining pivot and dynamics
Basic Dynamics (skis parallel)
- Skis must be travelling forward – like a bicycle
- This is mainly about using the outside leg (start of new turn) to push the centre of mass into the centre of the new turn – for the whole duration of the turn
- There is no “balance” when skiing – dynamics is the physics of disequilibrium
- You are looking for stability from organised accelerations (ski technology!)
- Notice in the photos below the outside leg is essentially straight in a skating action (flexion for absorption and other purposes is primarily at the hip joint)
- The centre of mass goes down toward the snow – and to complete the turn it comes back up – like a motorbike in a turn
- There is no “Centrifugal Force” acting on the skier – only a deflection inward away from a straight line. This deflection is used to lift the skier up at the end of the turn – which involves “finishing” the turn – I.E. turning almost back up the hill.
- Remain square to the skis (follow the skis around the turn with your body) until you are really comfortable with movement of the centre of mass and clearly aware of moving it.



Skating/Adductors
Skiing is just disguised skating. The main difference is the skis are wide and have two edges. When diverging the skis outwards at the tips into a skating stance the skis want to flatten on the snow and the stiff shaft of the ski boots will pull the knees outward. The adductor muscles need to be engaged to hold the skis on their inside edges. This is a pattern of muscle use – the adductors of both legs contracting – that should be maintained when skiing parallel. This is partly dependent on the skier’s morphology. If the femurs are naturally directed inwards less adductor use might be appropriate but if slightly bow legged there may be a need to consciously work the adductors.
Only when snowplough braking should the adductors be released to widen the spreading of the tails of the skis from the hip joints.

The other difference between skis and skates: – it’s just that skis bend and scribe arcs on the ground and are generally used on slopes not flat lakes. Skating actions are fundamental for a skier’s development because they involve independent leg action where only one leg at a time is really used. Although skiers can stand on two feet the body is oriented specifically on one hip joint at a time (when turning) and has to function as if standing on one leg. Skating exercises such as skating step turns are helpful in developing basic skills. Skating turns use diverging skis (opposite from snowplough) and incremental stepping of the centre of mass inward toward the turn centre. This is ideally the first sort of turning that any complete beginner should experience – on flat terrain.
Advanced Dynamics
Everting the Feet
When the skis are parallel the feet still “diverge” (as if skating) inside the ski boot – each foot being turned outward (everted). This obviously isn’t visible. This is to combat the tendency to twist the foot inwards to”turn” the ski directly -a mistake which flattens the ski and causes loss of grip.

Ankle Flex (Anterior Tibialis contraction)
Keeping the ankle flexed (upwards) protects the knee and helps keep pressure on the front of the ski boot – even while extending the leg, everting the foot and skiing on ice.
Pivot
After learning skating turns on the flat this is the way beginners should learn to turn for dealing with gradients. They should be assisted if required – by holding a ski pole at the side of the instructor and being physically led through all the moves – just like someone being led in a dance. Eventually the skill is assimilated due to the body being fed the correct feeling repeatedly. Some athletic beginners can cope with this manoeuvre on their own.
The reason for this pivot is to develop fall-line skiing skills. It’s a “braking” form of turn which gives great control over speed – because of the skis only being used on uphill edges. The other important element of this pivot is that both feet are kept downhill of the skier (vertically below the skier) which is not only a fun and playful way to ski but is critical for safety on dangerous steeps such as in couloirs. Most people are totally brainwashed in the skiing world into believing that a ski only turns because of its inside edge with its sidecut. Well it does, but not all of the time. The ski can also turn while on its outside edge during the first half of a turn. If someone has already worked on a forward diagonal sideslip then they already partly know the mechanism for this.
The skier has to stand on the uphill ski only, lifting the lower ski off the snow. The foot should feel pressure on its outside edge but the adductor muscles of this leg should be pulling in the downhill direction. The ski will remain on its outside edge (due to the lateral support of the ski boot shaft preventing the ski from flattening). The downhill pole should be planted for support and so when the lower ski is lifted the body weight should be partially transferred to the pole. This requires the skier to face downhill and tilt forwards from the hips (angulation). Place the centre of mass downhill as much as possible with the use of support from the ski poles. Try to keep the ski on its uphill edge while the centre of mass moves downhill of it. The use of the pole here is to support and guide the centre of mass – which then pulls the ski tip downhill along with it. (In dynamics skiing with forward motion of the ski the pole is not required because the support for the centre of mass comes from the lifting up power of the ski itself. This is why pole planting is only associated with pivoting and not with dynamic skiing – where only a pole touch at most is required when entering a turn)
The adductor muscles of the outside leg continue to be engaged to allow the centre of mass to pull the front of the ski downwards in a sideslip into a turn. This trains the correct muscular coordination – pulling inwards towards the turn centre with the adductor muscles.
To check that the adductor muscles are being used the “Pole Stopper” exercise is useful. For this exercise I place a ski pole between the tips of the two skis. The skier lifts a ski a few inches off the snow and then pulls the tip against the pole. If the adductor muscles are being used then as the tip is blocked the tail should swing inwards at the back. If the tail swings outwards then the it’s the muscles on the outside of the leg (abductors) being used to push and twist rather than the adductors (inside of the leg) being used to pull or tension the leg.
When the pivot starts the skier (centre of mass) has to move downhill slightly from the ski but not too much because the ski must remain on the uphill edge for as long as possible. Moving the body too much downhill would change the ski edges far too quickly – for this effect the ski must be allowed to sideslip right from the beginning. The ski will change edges when it is in the fall-line, onto the new “inside” uphill edges for the last part of the turn. All the time – from start to end of the turn the skier needs to pull inwards and tension the adductors.
Completing the turn correctly requires the skier to avoid body rotation and to have the body in an anticipated and angulated stance, ready for another pole plant at the start of the next turn.
Combining pivot and dynamics
The basic “pivot” initialises a turn from the uphill ski – uphill (outside) edge. In dynamic skiing (with skis running forward) the same edge provides a platform for pushing off early to start the next turn. The ski will start the turn with a slight pivot action naturally and the engaged uphill edge will guarantee there is no slipping outwards of the ski during the “push” – assuring a clear directing of the centre of mass into the new turn. This flexed “uphill” leg permits a strong push which has to be executed consciously and deliberately.