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This presentation:
• Why the ideal bike position?
• BackgroundsPerformance, muscles, pedal movement
• Determine position
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Incorrect bike position can lead to:
• Knee problems
• Achillestendon complaints
• Back problems
• Painfull arms, shoulders and neck
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Determine position to…
• Optimum perfomance– Musclefunctioning– Breathing– Aerodynamics
• Relaxed and painless rides under all cicumstances (sprints, climbs, descents, timetrials)
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Performanceparameters
• Muscle functions
• Levers
• Breathing
• Biomechanica
• Aerodynamica
• Comfort
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Muscle
Conditions:• Energysupply (Fat, Carbonhydrates)• Blood- and oxygen supply• Reach of the movement• Pretension before maximum effort
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Movements
• „Picking“Pedal movement from top till bottom
• „Kicking“Rotation of the shinbone around the knee
• „Piano“Movement of the feet
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Muscles related to pedaling:
Stretching (1,2 and 3)
Bending (4,5 and 6)
1. Calves
2. Quads
3. Calves
4. Adduscors
5. Glutes
6. Lats
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Pace
• The full rotation leads to a gradual load and unload
of all muscles involved.
• Ideal combination of:– Picking-– Kicking-– Piano
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Incorrect bike position can lead to:
• Knee problems
• Achillestendon complaints
• Back problems
• Painfull arms, shoulders and neck
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Incorrect position of the saddle:
• Too high– Moving on the sadle– No efficient pedalling– Overload of knee
• Too low– overload on the knees
• Too far to the front – Unfavourable lever, overload on the knees
• Too far to the back– Unfavourable lever
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Sitting parameters
• Position of the foot
• Angle in knee joint
• Positioning hips
• Positioning of the back
• Arm position
• Body gravity centre
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Positionparameter
• Seat height– Saddleheight– Saddle lay back
• Handle position– Length– Height
• Cranklength
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The ideal position
• Knee angle of 145°-155° (pedal in lowest position)
• Knee joints above pedal axle (cranks horizontal)
• Angle sholder/upperarm approx. 90°
• Angle elbow joint approx. 160°
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Cyclefit calculation
• individual
• simpel
• reproductive
• Scientifically proven
• Field experience
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Taking measurement
Saddle position:Innerleg length, upperleg length , foot length
• Position of the handlebarchestlength, Armlength and Schoulderwidth
Fast, simpel and reproductive
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Calculation
A programm will calculate in a split second the ideal position takening into account:
Bicycle typeComfortSexPedalsystem
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Cyclefitpositioning
• High seatpositioning (not too high)– Full force development without over streching.
• Streched seatpositioning (not overstreched) overstrekt)– Streched back for good oxygen intake– Correct arm angle for more comfort and to
prevent fatigue – Relaxed neck muscles– Aerodynamic position