Browsing by Subject "Handgrip strength"

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    Talent identification among elite Czech male junior tennis players (U12) according to their future tennis performance and birthdate
    (Universidad de Murcia, Servicio de Publicaciones, 2023) Polách, Michal; Jiří, Zháněl; Agricola, Adrián; Kellner, Petr; Vespalec, Tomáš
    La identificación de talentos (IT) en el deporte, que es la selección de individuos dispuestos a lograr un rendimiento de élite en la edad adulta, a menudo se basa en pruebas de aptitud física. La ITestá relacionadacon elfenómeno llamado Efecto de la Edad Relativa (EER),que se refiere a la influencia de lafecha de nacimiento en el rendimiento deportivo. Este estudio retrospectivo se basa en la suposición de que los atletas adultos de élite poseían indicadores predictivos de una carrera exitosa desde una edad temprana. El estudio tuvo como objetivo evaluar las diferencias entre los tenistas masculinos checos según 1) su rendimiento en el tenis en la edad adulta, 2) su fecha de nacimiento en cada semestre (S). Los participantes fueron jugadores sub-12 quemás tardese ubicaron entre los 1000 mejores en el Ranking ATP de Individuales. Los datos de la investigación se obtuvieron durante las pruebas periódicas de la Asociación Checa de Tenis (1998-2019). Se encontraron diferencias significativas entre los subgrupos R1 (ranking 1 -500) y R2 (ranking501 -1000), sorprendentemente favorables aR2 en 4 variables.Se encontrarondiferencias significativas favorables a B1 (nacidosen S1) en 2 variables,yfavorables aB2 (nacidos en S2) en 2 variables.
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    Vocal cues to male physical formidability
    (2022-07-05) Mailhos, Álvaro; Egea Caparrós, Damián Amaro; Guerrero Rodríguez, Cristina; Luzardo, Mario; Dilyanova Kiskimska, Nansi; Martínez Sánchez, Francisco; Psicología Básica y Metodología
    Animal vocalizations convey important information about the emitter, including sex, age, biological quality, and emotional state. Early on, Darwin proposed that sex differences in auditory signals and vocalizations were driven by sexual selection mechanisms. In humans, studies on the association between male voice attributes and physical formidability have thus far reported mixed results. Hence, with a view to furthering our understanding of the role of human voice in advertising physical formidability, we sought to identify acoustic attributes of male voices associated with physical formidability proxies. Mean fundamental frequency (F0 ), formant dispersion (Df ), formant position (Pf ), and vocal tract length (VTL) data from a sample of 101 male voices was analyzed for potential associations with height, weight, and maximal handgrip strength (HGS). F0 correlated negatively with HGS; Pf showed negative correlations with HGS, height and weight, whereas VTL positively correlated with HGS, height and weight. All zero-order correlations remained significant after controlling for false discovery rate (FDR) with the Benjamini–Hochberg method. After controlling for height and weight—and controlling for FDR—the correlation between F0 and HGS remained significant. In addition, to evaluate the ability of human male voices to advertise physical formidability to potential mates, 151 heterosexual female participants rated the voices of the 10 strongest and the 10 weakest males from the original sample for perceived physical strength, and given that physical strength is a desirable attribute in male partners, perceived attractiveness. Generalized linear mixed model analyses—which allow for generalization of inferences to other samples of both raters and targets—failed to support a significant association of perceived strength or attractiveness from voices alone and actual physical strength. These results add to the growing body of work on the role of human voices in conveying relevant biological information.