The interaction between intra-cyclic variation of the velocity and mean swimming velocity in young competitive swimmers.
Int J Sports Med
; 34(2): 123-30, 2013 Feb.
Article
en En
| MEDLINE
| ID: mdl-22972251
ABSTRACT
The aim of this study was to assess the relationship between the intra-cyclic variation of the horizontal velocity (dv) and the velocity of the 4 competitive swimming techniques in young swimmers. 45 young swimmers performed a set of maximal 4 × 25 m (freestyle, backstroke, breaststroke and butterfly stroke) swims with in water start. A speed-meter cable was attached to the swimmer's hip. The dv and the swimming velocity were analyzed. Within-subject tests presented significant variations in the dv based on the swimming technique. Post-hoc test revealed significant differences across all pair-wised swimming techniques (P<0.001), except for the comparison between freestyle and backstroke (P=0.98). The dv was higher in the breaststroke, followed by the butterfly, the backstroke and the freestyle. The quadratic models had the best goodness-of-fit and the lower error of estimation for the relationship between the dv and the swimming velocity in all swimming techniques (0.24 ≤ R(2) ≤ 0.51). As a conclusion, there is a non-linear relationship where the increase of swimming velocity leads to a decrease of dv in young competitive swimmers.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Natación
/
Rendimiento Atlético
Tipo de estudio:
Diagnostic_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Int J Sports Med
Año:
2013
Tipo del documento:
Article
País de afiliación:
Portugal