Abstract

Excellent womenÃ?Â?Ã?Â?Ã?Â?Ã?Â?s triple jump three phases jumping parameters correlation degree research based on GRA model

Author(s): Zhiqiang Zhao

Triple jumpers sport abilitiesÂ’ are up to sport technique, psychological and physical quality, as well as training conditions. Present excellent triple jumpers aremostly fromAmerica and Europe, Chinesewomen triple jump has made constant progress in 1990s, seen from around 20 years performance, it has ever always got close to world advanced level, broke thoughAsian women triple jump record for times, Chinese athletes are in Asian leading position,, but they keep paces withAmerican and European countries, which still needs to further catch up with world level. The paper makes research on women triple jumpersÂ’ performance and parameters in sports relations, by theoretical exploring and discussing, it defines parameters indicators.Apply greymathematicalmodel, solve indicator and performance correlation degree, and initialize data. In three phasesÂ’ jumping, it respectively establishes parameters and performance correlations, solves weight and establishes performance and factor equations, By comparing with excellent athletesÂ’ parameters, it gets each factor importance in performance by analyzing and researching that is weight, and verifies. By mathematicalmodel establishment, it further analyzes performance influence factors. Finally it proposes that improve horizontal speed, and takeoff vertical speed is the important way to improve triple jump performance