Oscilação do arco e a sua relação com a precisão em tiradores de elite de arco recurvo júnior

Autores

DOI:

https://doi.org/10.47197/retos.v83.119720

Palavras-chave:

Tiro com arco, biomecânica, estabilidade do arco, captura de movimento, fase pré-disparo

Resumo

Introdução e objetivo: A estabilidade do arco antes do lançamento é um fator chave para a precisão; No entanto, a sua relação com a força do membro superior em arqueiros juniores de elite apenas foi descrita. O objetivo deste estudo foi quantificar a oscilação triaxial do arco e examinar a sua associação com o rendimento de tiro e a força isométrica máxima de pressão manual.

Metodologia: Mediante um sistema Vicon de 8 câmaras, foi registada a cinemática em 3D para avaliar o deslocamento do arco e a variabilidade da mão de tiro durante um intervalo padronizado anteriormente ao sulte em arcos de arco recurvo.

Resultados: A oscilação longitudinal foi identificada como o determinante cinematográfico mais consistente do desempenho, mostrando uma grande associação negativa com a pontuação. Simismo, verificou-se uma correlação negativa quase perfeita entre a pontuação média e a área de agrupamento (método do círculo envolvente mínimo). Enquanto a força de pressão manual não esteve associada ao desempenho, a força de abertura do arco apresentou uma associação positiva de moderada a elevada com a pontuação, embora sem atingir significado estatístico para além da correção.

Conclusões: Estes hallazgos destacam o papel crítico da estabilidade longitudinal através da força bruta da mão para determinar a precisão do tiro em arqueiros juniores de elite.

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Publicado

30-05-2026

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Artigos de caráter científico: trabalhos de pesquisas básicas e/ou aplicadas.

Como Citar

Talayero, C., López-Moranchel, I., López-González, R., Díaz-López, R., & López-Torres, O. (2026). Oscilação do arco e a sua relação com a precisão em tiradores de elite de arco recurvo júnior. Retos, 83, 79-91. https://doi.org/10.47197/retos.v83.119720