Caffeinated Chewing Gum on 400-meter Performance

Not Applicable

Completed

• Conditions: Placebo; Caffeine
• Interventions: Dietary Supplement: caffeine

• Registration Number: NCT06430996
• Lead Sponsor: Chih-Hui Chiu

Brief Summary

20 trained sprinter were divided into caffeine Gum trial (CAF) and Placebo trial (PL) with a randomized, double-blind study design. The participants chewing either caffeine Gum (CAF trial, containing 3 mg/kg of caffeine) or Placebo Gum (PL) for 10 minutes. The outcomes are Running-Based Anaerobic Sprint Test and 400-meter sprint test was performed.

Detailed Description

The purpose of this study was to investigate the effect of caffeinated chewing gum on 400-meter sprint performance. 20 trained sprinter were divided into caffeine Gum trial (CAF) and Placebo trial (PL) with a randomized, double-blind study design. The participants chewing either caffeine Gum (CAF trial, containing 3 mg/kg of caffeine) or Placebo Gum (PL) for 10 minutes. After rested for 15 minutes, the participants underwent a Running-Based Anaerobic Sprint Test. After a 30-minute break, a 400-meter sprint test was performed. The blood lactate concentration were collected before and after 400-meter sprint from finger. Saliva samples were predicted to be collected before chewing gum, before the RAST, and after a 400-meter sprint. Saliva samples will be analyzed for caffeine and α-amylase concentrations in saliva.

Study Timeline

• Study Start: 2024-04-08
• Study First Submitted: 2024-04-08
• Study First Submitted QC: 2024-05-24
• Study First Posted: 2024-05-28
• Primary Completion: 2024-07-01
• Study Completion: 2024-07-01
• Status Verified: 2024-08
• Last Update Submitted: 2024-08-03
• Last Update Posted: 2024-08-06

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 19

Inclusion Criteria

• 6 years of professional short sprinting training
• 6 months of ongoing training, and
• 3 months of recovery from sports injuries such as strains and sprains.

Exclusion Criteria

• Non-specialized sprinters.
• has not trained regularly for the past 6 months.
• has recovered from an athletic injury.
• less than 3 months of recovery from a sports injury, or participants with epilepsy, hypertension, hyperlipidemia, heart disease, arthritis, osteoporosis, brain injury, or a history of caffeine allergy.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
placebo gum	caffeine	The participants chewing placebo gum 10 minutes before exercise
caffeine gum	caffeine	The participants chewing caffeine gum 10 minutes before exercise

Primary Outcome Measures

Name	Time	Method
400-meter sprinting	30 minutes after RAST	Measure the 400-meter completion time (seconds)
Running-Based Anaerobic Sprint Test (RAST)	15 minutes after intervention	Measure the fatigue index (%)

Trial Locations

Locations (1)

National Taiwan University of Sport; 🇨🇳 Taichung, Taiwan