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Abellán-Aynés, Oriol

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https://academica-e.unavarra.es/handle/2454/50243

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Abellán-Aynés

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Oriol

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Ciencias de la Salud

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0000-0002-6031-9027

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Author: López-Plaza, Daniel ×

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    PublicationOpen Access
    Stroke steadiness as a determinant factor of performance in 100 m freestyle in young swimmers
    (MDPI, 2023) López-Plaza, Daniel; Quero-Calero, Carmen Daniela; Alacid, Fernando; Abellán-Aynés, Oriol; Ciencias de la Salud; Osasun Zientziak
    The classical kinematic variables in swimming are based on the calculation of mean values. Stroke steadiness determines the relationship between the duration of all consecutive strokes throughout a test. The aims of the current investigation were to examine differences in stroke-to-stroke steadiness according to swimmers’ performance level on both body sides (breathing and non-breathing) and to analyse the interrelationship with kinematics during a 100 m front-crawl test. Thirty-two young, experienced swimmers voluntarily participated in the present study and were divided into two groups, national level (n = 15) and local level (n = 17), according to their competitive status within the national age-rankings. All participants performed a 100 m maximal test in a 50 m pool where they were laterally recorded. Kinematic variables such as mean velocity, stroke rate, stroke length, and stroke index, as well as long-term steadiness and short-term steadiness, were calculated. The two 50 m sections were analysed independently. Significant differences were observed between the two groups in the classical kinematic variables and in stroke steadiness (p < 0.05). In addition, stroke steadiness showed moderately high correlations with velocity (r = [−0.61–(−0.749)]) and stroke index (r = [−0.356–(−0.582)]). Maintaining a more stable inter-stroke period appears to be a determinant of performance in young, high-level national swimmers.