Modelling the relationship between biomechanics and performance of young sprinting swimmers
Data
2016-02-29
Autores
Silva, António José Rocha Martins da
Título da revista
ISSN da revista
Título do Volume
Editora
European Journal of Sport Science
Resumo
The aim of this study was to compute a swimming performance confirmatory model based on biomechanical parameters. The
sample included 100 young swimmers (overall: 12.3 ± 0.74 years; 49 boys: 12.5 ± 0.76 years; 51 girls: 12.2 ± 0.71 years; both
genders in Tanner stages 1–2 by self-report) participating on a regular basis in regional and national-level events. The 100 m
freestyle event was chosen as the performance indicator. Anthropometric (arm span), strength (throwing velocity), power
output (power to overcome drag), kinematic (swimming velocity) and efficiency (propelling efficiency) parameters were
measured and included in the model. The path-flow analysis procedure was used to design and compute the model. The
anthropometric parameter (arm span) was excluded in the final model, increasing its goodness-of-fit. The final model
included the throw velocity, power output, swimming velocity and propelling efficiency. All links were significant between
the parameters included, but the throw velocity–power output. The final model was explained by 69% presenting a
reasonable adjustment (model’s goodness-of-fit; x2/df = 3.89). This model shows that strength and power output
parameters do play a mediator and meaningful role in the young swimmers’ performance.
Descrição
Palavras-chave
strength , kinetics , Prediction , kinematics
Citação
This model shows that strength and power output parameters do play a mediator and meaningful role in the young swimmers’ performance.