Caffeinated gum: a new edge for volleyball players?

This study looked at whether chewing caffeinated gum can improve volleyball performance in trained female players. Eleven athletes took part in three sessions: one with placebo gum, one with a single 300 mg dose of caffeine gum, and one with three 100 mg doses spread over time. Researchers measured skills like attacking, blocking, and defending during a volleyball game, as well as jump height and heart rate. The goal was to see if caffeine from gum gives a quick performance boost during volleyball.