The Effect of Special Exercises Using Assistive Devices on Developing the Speed-Strength of the Arm Muscles and the Accuracy of the Overhand Serve in Volleyball. Journal of Humanities and Social Sciences Research, [S. l.], v. 5, n. 1, 2026. DOI: 10.33687/jhssr.005.01.0549. Disponível em: https://jhssrjournal.com/index.php/journal/article/view/549. Acesso em: 10 may. 2026.