
The competitors execute (individually, in duets or in groups) a choreography of elaborate movements in water accompanied by music. Synchronised swimming, or water ballet, is an Olympic sport which combines swimming, dance, ballet and gymnastics.

Keywords: Assessment, CMJ, Entrenamiento RFD, Natación Sincronizada, RFD Training, Specific Test, Synchronised Swimming, Test Específico, Valoración. The results show that training with added external load had a greater effect on the swimmers’ performance in the CMJ and that there is transfer to specific actions, probably leading to an improvement in competitive performance. 05) was found between the changes in the CMJ and the barracuda and an almost significant correlation with the boost ( r = .602 p = .065). A significant correlation ( r = .643 p ≤. The CMJ and the barracuda presented a positive, albeit not significant, correlation. A significant positive relationship was found between the boost and the barracuda ( p < .05) and between the CMJ and the boost ( p < .01) whenever they were measured.

No significant change was observed in the first period. No significant changes were found in the barracuda. The statistical analysis showed significant changes in the boost ( p < .05) and the thrust ( p < .01) after the second period. The athletes were tested at the end of the preseason (baseline data) and after each intervention period (14 weeks). During the first preparation period, they were trained without added external load, while in the second period they worked with added external load (lift, squat and weighted jumps).

The study participants (n = 10) were a group of swimmers from the children’s/junior category (14 ± 1 years) with no experience in power training. The variables assessed were performance (height) on the countermovement jump (CMJ) and on specific boost and barracuda tests.

The objective of this study was to ascertain the effect of two training periods differentiated by the type of power training (with/without added external load-weights) in synchronised swimmers.
