Influence of the biomechanical variables of the gait cycle in running economy
- Santos Concejero, Jordan
- Granados Domínguez, Cristina
- Irazusta Astiazaran, Jon
- Bidaurrazaga López de Letona, Iraia
- Zabala Lili, Jon
- Tam, N
- Gil Orozko, Susana María
ISSN: 1885-3137
Argitalpen urtea: 2014
Alea: 10
Zenbakia: 36
Orrialdeak: 95-108
Mota: Artikulua
Beste argitalpen batzuk: RICYDE. Revista Internacional de Ciencias del Deporte
Laburpena
El objetivo de este estudio fue el investigar las relaciones entre diferentes variables biomecánicas y la economía de carrera (RE). Once atletas populares (RR) y 14 atletas altamente entrenados (WT) completaron estadios de 4 min en tapiz rodante a diferentes velocidades. Durante el test, el tiempo de contacto (tc) y de vuelo (tsw), la longitud, frecuencia y ángulo de zancada y la duración de las diferentes sub-fases del tiempo de contacto se calcularon usando un sistema óptico. Se midió el VO2 para calcular la RE. Los atletas WT fueron más económicos que los RR y presentaron menores tc, mayores tsw, zancadas más largas, frecuencias más bajas y ángulos mayores (P<0.05). Además, los atletas WT experimentaron la sub-fase propulsiva más tarde que los RR (P<0.05). La RE estuvo positivamente relacionada con el tc, la frecuencia de zancada y el ritmo de 10 km, mientras que estuvo negativamente relacionada con el tsw, longitud y ángulo de zancada y la sub-fase propulsiva. Estos resultados sugieren que una biomecánica caracterizada por zancadas más largas, ángulos de zancada y tsw mayores, menores frecuencias y tc, y sub-fases propulsivas más tardías pueden favorecer un uso energético más eficiente.
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