Revisión - Ajuste de Bicicleta Retul

Review - Retul Bike Fitting

Retul ha estado generando mucho revuelo en el mundo del triatlón y el ciclismo durante el último año. Han sido reclutados para adaptarse a personas como Lance Armstrong, Levi Leipheimer, Chris Lieto, Craig Alexander, Normann Stadler y muchos más. Su página web muestra imágenes de atletas con puntos y cables de aspecto extraño en su cuerpo. Así que fuimos al estudio de Retul en Boulder, Colorado, para equiparnos y ver a qué se debía todo este alboroto.

Sin embargo, para describir mejor lo que hace Retul, primero debemos describir el problema que debía resolver.

La evolución del ajuste de bicicletas

Una buena bicicleta en forma es la compra más importante relacionada con el ciclismo que uno puede hacer. Sin un ajuste adecuado, un ciclista corre un mayor riesgo de sufrir una lesión por uso repetitivo, sin mencionar el sacrificio de rendimiento en la bicicleta. Existen varios sistemas, como F.I.S.T., que guían al instalador de bicicletas para determinar la posición adecuada para un ciclista determinado. Un instalador observará al ciclista mientras pedalea y medirá ciertos ángulos clave del cuerpo para ejecutar el ajuste. El problema de estos sistemas siempre ha sido la realización de mediciones.

Tradicionalmente, un instalador le pedía al ciclista que se detuviera en un punto de su pedaleo y tomaba medidas con una herramienta manual llamada goniómetro. La herramienta es básicamente un transportador gigante y funciona bien, excepto que es propenso a múltiples formas de error de medición. El instalador podría fácilmente medir el ángulo demasiado obtuso o demasiado agudo. Pero lo más importante es que un ciclista invariablemente cambia el pedaleo cuando se le asigna la tarea de "congelarse". El talón tiende a caer y la rodilla se desliza hacia atrás. Si el ajustador no mide la posición real del ciclista, entonces no importa qué sistema de ajuste se esté utilizando; el ajuste se verá afectado.

Luego vino el análisis de vídeo, que captura imágenes del ciclista pedaleando y, en lugar de pedirle que se congele, el instalador puede simplemente pausar el vídeo. Esto es definitivamente una mejora, pero aún conlleva cierta posibilidad de error. Incluso si las mediciones son precisas, el instalador sólo mira un momento en el tiempo. Un golpe de pedal. Como cualquier ciclista sabe, su cuerpo puede cambiar de un pedaleo al siguiente. ¿Quién puede decir que el instalador eligió el fotograma de vídeo que es representativo de su posición real de conducción?

 

 

Entrar a Retul

Lo que Retul afirma hacer es nada menos que revolucionario. Al colocar un conjunto de marcadores especiales en puntos anatómicos clave del cuerpo, Retul captura el movimiento tridimensional real del ciclista durante un período de tiempo, y calcula y promedia automáticamente esas mediciones biomecánicas. El error de medición prácticamente se elimina (el instalador aún tiene que colocar esos marcadores en los puntos apropiados) y, al promediar su posición a lo largo del tiempo, el sistema captura cuál es su pedaleo real y verdadero.

Además, Retul va más allá de simplemente medir la posición de su cuerpo con precisión. Lo que también miden, con una precisión asombrosa, es tu bicicleta. Si planeas conservar tu bicicleta actual por el resto de tu vida, esto no es necesario. Sin embargo, si alguna vez desea comprar una bicicleta nueva, es fundamental tener medidas precisas de la bicicleta. Te asegurará que compres una bicicleta que se ajuste a tus necesidades y te ayudará a configurarla correctamente una vez que la tengas.

Por supuesto, todo esto suena genial en teoría, pero ¿cómo se aplica realmente en la práctica? Sigue leyendo.


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