Avaliação - Retul Bike Fitting

Avaliação - Retul Bike Fitting

Retul vem gerando muito burburinho no mundo do triatlo e do ciclismo no último ano ou mais. Eles foram recrutados para se adaptar a nomes como Lance Armstrong, Levi Leipheimer, Chris Lieto, Craig Alexander, Normann Stadler e muitos outros. O site deles mostra imagens de atletas com pontos e fios de aparência estranha no corpo. Então fomos ao estúdio de Retul em Boulder, Colorado, para fazermos os ajustes e ver o que estava acontecendo.

No entanto, para melhor descrever o que o Retul faz, devemos primeiro descrever o problema que ele pretende resolver.

A evolução do Bike Fitting

Um bom ajuste de bicicleta é a compra mais importante relacionada ao ciclismo que alguém pode fazer. Sem um ajuste adequado, um ciclista corre maior risco de sofrer uma lesão por uso repetitivo, sem mencionar o sacrifício do desempenho na bicicleta. Existem vários sistemas por aí, como o FIST, que orientam um ajustador de bicicleta a determinar a posição adequada para qualquer ciclista. Um ajustador observará um ciclista durante o curso do pedal e medirá certos ângulos corporais importantes para executar o ajuste. O problema com esses sistemas sempre foi fazer medições.

Tradicionalmente, um ajustador pediria ao ciclista para congelar em um ponto da pedalada e faria medições usando uma ferramenta portátil chamada goniômetro. A ferramenta é basicamente um transferidor gigante e funciona bem, exceto que é propensa a várias formas de erro de medição. O ajustador poderia facilmente medir o ângulo muito obtuso ou muito agudo. Mas o mais importante é que um ciclista invariavelmente muda sua pedalada quando é encarregado de "congelar". O calcanhar tende a cair e o joelho desliza para trás. Se o ajustador não estiver medindo a posição real do ciclista, não importa qual sistema de ajuste esteja sendo usado; o ajuste sofrerá.

Em seguida, veio a análise de vídeo, que captura imagens do ciclista pedalando e, em vez de pedir para o ciclista congelar, o ajustador pode simplesmente pausar o vídeo. Isso é definitivamente uma melhoria, mas ainda carrega consigo alguma possibilidade de erro. Mesmo que as medições sejam precisas, o ajustador está olhando apenas para um momento no tempo. Uma pedalada. Como qualquer ciclista sabe, seu corpo pode mudar de uma pedalada para a próxima. Quem pode dizer que o ajustador escolheu o único quadro de vídeo que é representativo da sua posição real de pedalada?

Entra Retul

O que Retul afirma fazer é nada menos que revolucionário. Ao colocar um conjunto de marcadores especiais em pontos anatômicos importantes do corpo, Retul captura o movimento real tridimensional do cavaleiro ao longo de um período de tempo , e calcula e faz a média automaticamente dessas medições biomecânicas. O erro de medição é praticamente eliminado (o ajustador ainda tem que colocar esses marcadores nos pontos apropriados), e ao fazer a média da sua posição ao longo do tempo, o sistema captura qual é o seu curso de pedal real e verdadeiro.

Além disso, a Retul vai além de apenas medir a posição do seu corpo com precisão. O que eles também medem, com precisão impressionante, é sua bicicleta. Se você planeja manter sua bicicleta atual pelo resto da vida, isso é desnecessário. No entanto, se você quiser comprar uma bicicleta nova, ter medições precisas da bicicleta é essencial. Isso garantirá que você compre uma bicicleta que se ajuste a você e ajudará você a configurá-la corretamente quando a tiver.

Claro, tudo isso parece ótimo na teoria, mas como isso realmente acontece na prática? Continue lendo.


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