NCT07412951

Effects of Caffeine and Shot Put Performance

Effects of Caffeinated Chewing Gum on Shot Put Performance

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 18 (estimated)
• Sponsor: National Taiwan Sport University · Academic / Other
• Sex: Male
• Age: 20 Years – 40 Years
• Healthy volunteers: Accepted

Summary

The aim of the study being to investigate the effects of caffeinated chewing gum on shot put performance

Detailed description

15-20 active throwers who have received professional shot put training are expected to be recruited for the study. In a randomisation crossover design, the study was divided into caffeinated chewing gum trial (CCG) and placebo trail (PL). Participants wore a heart rate monitor to record their heart rate and heart rate variability during the experiment, and were given either a caffeinated chewing gum containing 3 mg/kg of body weight (CAP trial) or a placebo chewing gum, and rested for 15 minutes. After the warm-up, the athletic ability test and shot put performance were conducted in order. Saliva samples were collected for analysis of caffeine and α-amylase before and at the end of the experiment.

Conditions

• Performance Enhancing Product Use

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	caffeine	The participants chewing either caffeine Gum (CAF trial, containing 3 mg/kg of caffeine) or Placebo Gum (PL) for 10 minutes.

Timeline

• Start date: 2026-01-01
• Primary completion: 2026-02-20
• Completion: 2026-07-31
• First posted: 2026-02-17
• Last updated: 2026-02-17

Locations

1 site across 1 country: Taiwan