• Requires the constant action of muscles and use of specific movements to moderate forces foot to foot
• The amount of pressure can be controlled by moving the CM, changing the turn radius, speed, amount of blend in the joints, edge angle or weight distribution
• Pressure is greatest at the bottom of the turn
Fore and Aft
Control pressure along the length of the feet and ski
You can shift your CM by leaning your whole body or shifting stance
Turn Radius
Tight or short radius turns create more pressure than long radius turns
Speed
The greater the speed the greater the pressure
Flexion and Extension
• The speed at which you flex or extend can define the amount and duration of a turn
• If you move at a constant rate the pressure can stay the same
• Flexion helps absorb changes in terrain and snow conditions and allows powerful rotary movements
• Flexion can be active (muscular contraction) or passive (letting a bump push up your legs)
• Extension is active move, such as pushing against the skis an snow to make your body taller or reach with your feet to maintain contact with a bump
Edge Angle
The amount a ski is titled relative to the surface of the snow and the hill
Increase edge angle > less surface area > more pressure
Foot-to-foot changes in weight redistribution
Can also control pressure
During redistribution, the new outside leg is often extending as the new inside leg flexes
This long leg/short leg action produces a lateral movement of the CM into the new turn
Should be smooth and progressive, like sand in an hourglass
• The amount of pressure can be controlled by moving the CM, changing the turn radius, speed, amount of blend in the joints, edge angle or weight distribution
• Pressure is greatest at the bottom of the turn
Fore and Aft
Control pressure along the length of the feet and ski
You can shift your CM by leaning your whole body or shifting stance
Turn Radius
Tight or short radius turns create more pressure than long radius turns
Speed
The greater the speed the greater the pressure
Flexion and Extension
• The speed at which you flex or extend can define the amount and duration of a turn
• If you move at a constant rate the pressure can stay the same
• Flexion helps absorb changes in terrain and snow conditions and allows powerful rotary movements
• Flexion can be active (muscular contraction) or passive (letting a bump push up your legs)
• Extension is active move, such as pushing against the skis an snow to make your body taller or reach with your feet to maintain contact with a bump
Edge Angle
The amount a ski is titled relative to the surface of the snow and the hill
Increase edge angle > less surface area > more pressure
Foot-to-foot changes in weight redistribution
Can also control pressure
During redistribution, the new outside leg is often extending as the new inside leg flexes
This long leg/short leg action produces a lateral movement of the CM into the new turn
Should be smooth and progressive, like sand in an hourglass
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