U.S., Nov. 22 -- ClinicalTrials.gov registry received information related to the study (NCT07240506) titled 'Effect of Caffeinated Chewing Gum on Vertical Jump Performance in Female Volleyball Players' on Nov. 16.
Brief Summary: This study aimed to examine the acute effects of caffeine intake through caffeinated chewing gum on the vertical jump performance of professional female volleyball players. Ten athletes from the Turkish Women's Volleyball First League voluntarily participated in this single-blind, placebo-controlled, randomized crossover study. Each athlete completed two test sessions: one with caffeinated gum containing 200 mg of caffeine and one with a caffeine-free placebo gum. After chewing the gum for 5 minutes, participants p...