Características cinemáticas da pedalada em ciclistas competitivos de diferentes modalidades.

 

Felipe Carpes¹

Frederico Dagnese¹

Rodrigo Bini²

Fernando Diefenthaeler²

Mateus Rossato¹

Carlos B. Mota²

Antônio C. S. Guimarães²

 

¹ Universidade Federal de Santa Maria, Laboratório de Biomecânica, Brasil.

² Universidade Federal do Rio Grande do Sul, Laboratório de Pesquisa do Exercício, Porto Alegre, Brasil.

 

RESUMO

O objetivo deste estudo foi comparar a cinemática de pedalada em ciclistas de duas modalidades diferentes (estrada e mountain-bike). A aquisição dos dados foi feita usando o sistema Peak Motus, sendo analisado o comportamento angular da coxa, joelho e tornozelo enquanto os ciclistas pedalaram em intensidade relativa ao segundo limiar ventilatório. Os resultados foram analisados estatisticamente com teste t de Student a cada 30º do pé-de-vela, não mostrando diferenças entre as modalidades. Entretanto, a cinemática do tornozelo apresentou grande variabilidade. A característica encontrada para o tornozelo possivelmente seja um fator decisivo para diferenças na técnica de pedalada entre os ciclistas destas duas modalidades, em relação à aplicação das forças no pedal.

Palavras-chave: ciclismo de estrada, ciclismo mountain-bike, cinemática.

 

ABSTRACT

Pedaling Kinematics Characteristics of Competitive Cyclists of Different Disciplines.

The purpose of this study was to compare the pedaling kinematics of cyclists of two different disciplines (road and mountain-bike). Data collection and analysis were accomplished using the Peak Motus System, and the angular kinematics behavior for the thigh, knee and ankle were analyzed while the cyclists pedaled in relative intensity to the second ventilatory threshold. The results were statistically compared by Student’s t-test to every 30° of crank, showing no statistically differences among the cycling disciplines. However, the ankle kinematics presented high variability. This characteristic found for the ankle may be a decisive factor related to the differences in the pedaling technique among cyclists of these two disciplines.

Key Words: road cycling, mountain-bike cycling, kinematics.

 

 

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CORRESPONDÊNCIA

Felipe Pivetta Carpes

Universidade Federal de Santa Maria

Centro de Educação Física e Desportos

Laboratório de Biomecânica, Prédio 51, sala 1007

Faixa de Camobi, km 9

97105-900, Santa Maria – RS

BRASIL

felipecarpes@gmail.com