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Effective and ineffective rotary

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Effective
The core supplies the strength and functional tension to the inside half of the body to facilitate the steering activity of the legs.

• Tension to builds up and is released into the new turn
• Quiet upper body
• The skier’s legs turn underneath a strong/stable torso to help guide the skis through the turn.
• Both skis and legs turn together throughout a parallel turn with the femurs turning in the hip sockets (instead of the entire hip coming around)
• Movements are progressive, unless an aggressive move is necessary

Steering movements of the legs allow us to adjust the radius of the turn and control speed
• Shoulders don’t follow tips
• Shoulders and hips level
• The skis are tipped and turned an appropriate amount to create a smooth C-shaped arc.

During turn transitions the lower body releases then realigns with the upper body.
• Constant speed and turn shape
• Tips follow tails
• Center of mass travels a more narrow path then legs

Ski into and out of counter rather than making a strong counter movement.

Ineffective
Without proper rotary movements, control deteriorates in difficult terrain because the skier cannot use the legs properly.
• The shoulders and/or torso initiate the turning of the skis.
• One ski stems or steps to begin the turn.
• The skis pivot or skid throughout the turn, creating a Z-shaped turn.
• The skis turn too quickly, causing over-turning, or do not turn fast enough, causing under-turning.
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