Artículos de Investigación

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Author: search.filters.author.Claudio Hernández-MosqueiraSubject: search.filters.subject.Social sciences

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    Effects of Knee Sleeve Density on Theoretical Neuromuscular Capacities Derived from the Force–Velocity–Power Profile in the Back Squat
    (2026)
    Jorge Leschot-Gatica
    ;
    Luis Romero-Vera
    ;
    Alberto Ñancupil-Andrade
    ;
    Claudio Hernández-Mosqueira
    ;
    Iván Molina-Márquez
    <jats:p>Background: Neoprene knee sleeves are commonly used to enhance joint stability and mechanical performance during resistance training. However, the specific influence of sleeve density on the force–velocity–power (F–V–P) profile during multi-joint lower-body exercises such as the back squat remains unclear. This study aimed to compare the theoretical F–V–P parameters derived from back squat performance while wearing low-density (LD) versus high-density (HD) knee sleeves. Methods: Fifteen resistance-trained males completed an incremental back squat test under both LD and HD conditions. A linear position transducer recorded barbell displacement and velocity. Individual force–velocity relationships were modelled to determine maximal theoretical force (F0), velocity (V0), power (Pmax), and the F–V slope. Paired-sample t-tests, linear mixed models, and Cohen’s d effect sizes were calculated. Clinical relevance was assessed using a threshold defined as 0.2 × the standard deviation of the HD condition. Bayesian analyses were conducted to estimate the probability and magnitude of the observed effects. Results: No statistically significant differences were observed between sleeve conditions for F0, V0, Pmax, or F–V slope (p &gt; 0.05, d ≤ 0.37). Nonetheless, HD sleeves yielded slightly higher mean values for F0, V0, and Pmax, exceeding the predefined threshold for practical relevance. Bayesian models showed moderate probabilities (~0.80) that HD sleeves outperformed LD, though with limited chances of crossing the clinical significance threshold. Conclusions: Although HD sleeves do not produce systematic changes in F–V–P parameters, their increased material stiffness may provide small yet practically meaningful mechanical advantages in high-force resistance training contexts.</jats:p>
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    LA UTILIDAD DE EDUCACIÓN FÍSICA SEGÚN ESCOLARES DE ALEMANIA Y CHILE
    (2020)
    Jaime Carcamo-Oyarzun
    ;
    Georg Wydra
    ;
    Claudio Hernández-Mosqueira
    ;
    Sebastián Peña-Troncoso
    ;
    Cristian Martínez-Salazar
    <jats:p>Resumo O presente estudo tem o objetivo de determinar a forma como estudantes de diferentes culturas percebem a utilidade das aulas de Educação Física. Foram entrevistados 2.748 estudantes (1.373 da região da Araucanía, Chile; e 1.375 do Estado de Sarre, Alemanha). Tanto os alunos chilenos como os alemães reconhecem mais uma utilidade “esportivo-recreativa” que uma “socioeducativa”, e os chilenos apresentam valores mais altos que seus pares alemães; por outro lado, ambos os grupos manifestam seu desacordo com a opinião de que a Educação Física não lhes serve para nada. Os estudantes consideram que suas aulas de Educação Física foram úteis, o que surge como uma oportunidade para reforçar a geração de experiências positivas nas aulas e consolidar as aprendizagens.</jats:p>