Práctica exclusiva de crol frente a práctica de los cuatro estilos de nado en el perfeccionamiento de la técnica de crol (Exclusive practice of crawl versus practicing the four swimming strokes on the improvement of crawl technique)

Abstract


 Contexto: Existen muchos aspectos relativos al proceso de enseñanza-aprendizaje en natación que no han sido objeto de estudio. Objetivo: El propósito de la presente investigación fue verificar si el perfeccionamiento de la técnica de crol es más eficaz cuando se practica crol de forma exclusiva, o cuando se realizan sesiones de los cuatro estilos. Método: 26 estudiantes universitarios de sexo masculino fueron aleatoriamente asignados a dos grupos: Grupo crol (GC): Realizó exclusivamente sesiones de crol. Grupo estilos (GE): Realizó sesiones de los cuatro estilos de nado. Resultados: Una vez finalizado el programa de intervención de ocho semanas, ambos grupos mejoraron la técnica de crol. Sin embargo, las mejoras obtenidas por el GE fueron significativamente superiores a las logradas por el GC en el test de 25 m crol (p=.001), en la longitud de ciclo (p=.006), en la velocidad de nado promedio (p y en el índice de nado (p=.002). Conclusión: El perfeccionamiento de la técnica de crol en varones en edad universitaria es más eficaz si se realizan sesiones de los cuatro estilos de nado, que si se practica exclusivamente crol. 
 Abstract. Context: Many aspects related to the teaching-learning process in swimming have not been subject of study. Objective: The purpose of the present investigation was to verify which methodological approach is more effective in improving the crawl technique: Exclusive practice of crawl, or practicing the four swimming strokes. Method: 26 male university students were randomly allocated into two groups: Crawl Group (GC): They exclusively performed crawl sessions. Swimming strokes group (GE): They underwent sessions of all the four swimming strokes. Results: After completing an eight-week intervention program, both groups enhanced their crawl technique. However, improvements observed in the GE were significantly greater than those achieved by the GC in the 25-metres crawl test (p <.001), stroke length (p=.006), average swimming speed (p=.000), and stroke index (p=.002). Conclusion: Practicing all four swimming strokes is more effective than crawl swimming only when it comes to improving the crawl technique in college-aged males.

Relationship of muscle strength, power, and leg flexibility with the swim start of the butterfly style

“…Not a few swimmers fail in competitions due to lack of mastery start and reversal (Garcia et al, 2015). And the need for good underwater gliding capabilities (Hermosilla et al, 2022;Prieto González & Sedlacek, 2020). The physical components needed by butterfly swimming athletes are strength, flexibility, speed, endurance, balance and coordination (Jovanovic, 2017;Zemková, 2022).…”

The effectiveness of robotic rehabilitation for the functional recovery of the upper limb in post-stroke patients: a systematic review

“…A key component of stroke rehabilitation is improving upper limb function to reduce impairments and disabilities. These upper limb impairments include numbness or weakness, difficulty moving and coordinating the arms, hands, and fingers, and have a negative impact on ADL (activities of daily living) (Bissolotti et al, 2016;González and Sedlacek, 2021). Conventional poststroke rehabilitation, including constraint-induced movement therapy (CIMT), mental practice, mirror therapy, interventions for sensory impairment, and a relatively high dose of repetitive task practice may be effective Pillastrini et al, 2016;Pollock et al, 2014;Taveggia et al, 2016b).…”