A KINETIC ANALYSIS OF HURDLING

Le résumé fourni par la source

Mechanical external work and average power were measured during take-off and landing phases in hurdling using force plates. This study was used two skilled hurdlers as subjects. The subjects tried 55-m hurdles as posible as they can. The both negative and positive external work and average power were calculated from the reaction force on the plate form during two phases. The measered values of hurdling velocity were 7.12 and 7.24 m/sec for higher skilled and 6.59 and 6.56 m/sec for lower skilled. This may indicate that hurdling velocity was an important factor to determine the record of hurdle running. During take-off phase, higher values of forward work and average power were observed in negative phase than those in positive phase. During handing phase, however, forward work and average power were lower in negative phase than those in positive phase. For vertical work and average power, positive values were higher than negative ones during take-off phase. On the contrary, during landing phase, positive values were lower than negative ones. These results suggested that the work for braking was larger than that for thrust during take-off phase and the work for thrust was larger than that for braking during landing phase.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.