Caffeine & Bodybuilding Dehydration Ability

Chih-Hui Chiu

Status: Completed

Conditions: Caffeine; Placebo

Treatments: Dietary Supplement: caffeine

Study type: Interventional

Funder types: Other

Identifiers

NCT06431035

113-3

Details and patient eligibility

About

15-20 trained bodybuilding athletes 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 5 mg/kg of caffeine) or placebo gum (PL) for 10 minutes. After rested for 15 minutes, Participants used the bicycle to adjust the pedal resistance and speed according to their own feelings until they were dehydrated to 2% of their original body weight.

Full description

The purpose of this study was to investigate the effect of caffeinated chewing gum on dehydration ability in bodybuilding athletes. Methods: 15-20 trained bodybuilding athletes 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 5 mg/kg of caffeine) or placebo gum (PL) for 10 minutes. After rested for 15 minutes, Participants used the bicycle to adjust the pedal resistance and speed according to their own feelings until they were dehydrated to 2% of their original body weight. Record time from exercise to completion of dehydration, heart rate, HRV, energy expenditure, fat oxidation rate and carbohydrate oxidation rate.

Enrollment: 14 patients

Sex: Male

Ages: 20 to 40 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• having won the top 8 places in a national competition,
• having no cardiovascular or joint diseases
• being an adult male

Exclusion criteria

• no top 8 finishes at national level
• cardiovascular or joint disease, or any other condition that could be impaired by exercise
• female and underage participants
• previous caffeine allergy

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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14 participants in 2 patient groups, including a placebo group

caffeine gum

Experimental group

Description:

Chewing caffeine Gum (CAF trial, containing 5 mg/kg of caffeine) for 10 minutes before test.

Treatment:

Dietary Supplement: caffeine

placebo

Placebo Comparator group

Description:

Chewing placebo gum (without caffeine) for 10 minutes before test.

Treatment:

Dietary Supplement: caffeine