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1.
Brain Sci ; 13(8)2023 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-37626560

RESUMO

Global and local biological motion processing are likely influenced by an observer's perceptual experience. Skilled athletes anticipating an opponent's movements use globally distributed motion information, while less skilled athletes focus on single kinematic cues. Published reports have demonstrated that attention can be primed globally or locally before perceptual tasks; such an intervention could highlight motion processing mechanisms used by skilled and less skilled observers. In this study, we examined skill differences in biological motion processing using attentional priming. Skilled (N = 16) and less skilled (N = 16) players anticipated temporally occluded videos of volleyball attacks after being primed using a Navon matching task while parietal EEG was measured. Skilled players were more accurate than less skilled players across priming conditions. Global priming improved performance in both skill groups. Skilled players showed significantly reduced alpha and beta power in the right compared to left parietal region, but brain activity was not affected by the priming interventions. Our findings highlight the importance of right parietal dominance for skilled performers, which may be functional for inhibiting left hemispheric local processing or enhancing visual spatial attention for dynamic visual scenes. Further work is needed to systematically determine the function of this pattern of brain activity during skilled anticipation.

2.
J Sports Sci ; 39(10): 1153-1163, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33381998

RESUMO

Geographical regions possess distinct sporting cultures that can influence athletic development from a young age. The United States (US) and Austria both produce elite alpine ski racers, yet have distinct sport structures (i.e., funding, skiing prominence). In this exploratory study, we investigated sport outcomes and psychological profiles in adolescent alpine ski racers attending skill development academies in the US (N= 169) and Austria (N= 209). Sport participation and psychological questionnaires (mental toughness, perfectionism, grit, coping, burnout) were administered to athletes. In Austria, athletes participated in fewer extracurricular sports, began competing and training younger, and accumulated less practice hours than athletes in the US. Athletes in the US reported greater burnout than athletes in Austria. Finally, in the US, women accumulated more practice hours and experienced more parental pressure than men, while men accumulated more practice hours in Austria. Austria's skiing-centric sport culture may encourage athletes to fully immerse into the sport, contributing to positive psychological outcomes. Reduced sport opportunities in the US beyond educational institutions may pressure athletes to practice more to ensure continued competitive skiing. Stressors for sport participation will be unique to gender in each country though, given their implicit gender stigmas for sport participation.


Assuntos
Desempenho Atlético/psicologia , Comportamento Competitivo , Características Culturais , Esqui/psicologia , Adaptação Psicológica , Adolescente , Fatores Etários , Traumatismos em Atletas/epidemiologia , Desempenho Atlético/economia , Desempenho Atlético/fisiologia , Áustria/epidemiologia , Esgotamento Psicológico , Feminino , Financiamento Governamental , Humanos , Incidência , Masculino , Motivação , Pais/psicologia , Perfeccionismo , Condicionamento Físico Humano , Autoimagem , Fatores Sexuais , Esqui/economia , Esqui/fisiologia , Fatores de Tempo , Estados Unidos/epidemiologia
3.
J Sports Sci ; 39(4): 380-387, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32951530

RESUMO

In an effort to evaluate the mechanisms underpinning performance in alpine ski racing, researchers have focused on the predictive validity of measures derived from fitness assessments. However, a limitation of this literature is the absence of practice time, since prolonged training may naturally develop specific fitness capacities, making some tests of physical ability less predictive of performance. We examine the relationship between fitness tests, practice, and performance using linear regressions with fitness test data, practice history data, and performance results from adolescent alpine ski racers attending professional development academies in the United States (N = 82). Only aerobic capacity (i.e. 20 m shuttle run) was significantly associated with more practice time. After controlling for practice hours, 5.5-6.5% of variance in ski performance was significantly explained by assessments of lower body power (i.e. standing long jump, triple jump), anaerobic capacity (i.e. 60 s box jump), and upper body strength/endurance (i.e. push-ups). Findings highlight the important role of anaerobic power on alpine ski racing performance, which may be developed outside of regular practice, possibly through weight training or physical maturation. The small variance explained by physical/physiological measures suggests that superior ski performance is likely a product of various skills and characteristics (e.g. technical, tactical, perceptual-cognitive, psychosocial).


Assuntos
Desempenho Atlético/fisiologia , Aptidão Física/fisiologia , Esqui/fisiologia , Adolescente , Fatores Etários , Anaerobiose , Desempenho Atlético/estatística & dados numéricos , Fenômenos Biofísicos/fisiologia , Feminino , Crescimento/fisiologia , Humanos , Modelos Lineares , Masculino , Força Muscular/fisiologia , Consumo de Oxigênio/fisiologia , Análise de Regressão , Estudos Retrospectivos , Fatores Sexuais , Esqui/estatística & dados numéricos , Fatores de Tempo , Estados Unidos , Levantamento de Peso/fisiologia
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