Marendra, M.R. et al. 2025. The Effect Of Waist Flexibility Training On Smashing Ability In Extracurricular Volleyball At State High School 10 In Bengkulu City. Journal of Physical Education and Sports. 2, 2 (Dec. 2025), 43–48. DOI:https://doi.org/10.37676/jpes.v2i2.1065.