Calculateur de Puissance de l'Athlète
Calculez la puissance produite par un athlète.
Puissance de sortie
2,000 W
Power Output vs Applied Force
Formule
## Mechanical Power Output Power is the rate of doing work. In cycling and rowing, it is the product of the force applied and the velocity of movement. ### Formula **Power (W) = Force (N) x Velocity (m/s)** The power-to-weight ratio (W/kg) is the most important metric for climbing cyclists. Professional cyclists sustain 5-6 W/kg for an hour; recreational riders typically manage 2-3 W/kg.
Exemple Résolu
A 75 kg cyclist applying 200 N of force at 10 m/s (36 km/h).
- 01Power = 200 x 10 = 2,000 W
- 02Power-to-weight = 2,000 / 75 = 26.67 W/kg
- 03Speed = 10 x 3.6 = 36 km/h
- 04Note: 2000W is a sprint effort; sustained power is much lower
Questions Fréquentes
What is a good W/kg for cycling?
For a 20-minute effort: untrained 1.5-2.0, recreational 2.5-3.5, competitive amateur 3.5-4.5, elite 5.5-6.5, and Tour de France winners around 6.0-6.5 W/kg.
How is power measured?
Power meters on bikes measure torque and cadence at the crank, pedal, or hub. Indoor trainers and rowing machines have built-in power measurement.
Does power change with speed?
Yes. Aerodynamic drag increases with the cube of speed, so maintaining higher speeds requires exponentially more power.
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