Effect of stable and unstable loads on post-activation performance enhancement in the countermovement jump. Global Journal of Sport and Exercise Science (GJSES), [S. l.], v. 1, n. 2, 2026. DOI: 10.63750/f390w842. Disponível em: https://gjses.org/index.php/gjses/article/view/32. Acesso em: 13 mar. 2026.