Christian, Janice day 1

  • Skating
  • Snowplough
  • Combining Snowplough with Dynamics
  • Dynamics
  • Feet Forward Technique

Combining Dynamics and Snowplough 
Dynamics is explained in terms of the mechanics of accelerations. (F=mA Newton’s 2nd Law). In skiing this means you move your centre of mass (either falling or with a push) in the direction you want to turn. You do not transfer your weight to the outside ski as is incorrectly taught in ski schools.

In the Snowplough using dynamics requires the adductors of both legs to be engaged and now the “deflection” is carried out by moving the Centre of Mass (CoM) across the skis in the direction of turning. The displacement of the CoM affects the geometry of both skis with respect to the slope (one goes flatter and the other more on edge) and that’s where the deflection comes from.

On steeper terrain the downhill ski (inside ski of the turn) takes the weight of the body and is used as a brake – pivoting slowly into the turn – until half way through the weight shifts by itself to the outside ski which is now able to take over the continued braking effect.

Feet Forward Technique
“Feet Forward Technique”… gives security through the start of a turn on steep terrain by tightening the turn radius (applies to skis running forward across the slope and not to “pivoting”)

Pushing the outside (uphill initially) foot forward during the turn. The foot never gets in front of the other foot – it just tightens the turn instead.

The exercise is practised with skis off and standing in ski boots. For this static exercise we use ski pole support with the body faced downhill with the uphill foot pointing across the hill and the downhill foot pointing downhill and the heel jammed into the snow. The uphill boot is pulled over onto its inside edge and pushed forwards in a natural arc.

Here is some video of exactly the same action in ice hockey training. In skiing the direction of travel would be straight downhill instead of straight ahead on the flat ice.

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