Effects of Caffeinated Gum on a Basketball-specific Tests in Trained University Male Basketball Players: a Crossover Trial

Study Overview
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Brief Summary
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This study investigated the effects of chewing 3 mg/kg of caffeinated gum on basketball free throw accuracy and basketball -specific performance. Fourteen trained basketball players with at least a top 8 national ranking were recruited to be participants in this study. After 2 simulation tests to familiarize the experimental procedure, we employed a double blind, randomized crossover design to divide participants into caffeine trial (CAF) and placebo trial (PL). The CAF trial chewed caffeine gum containing 3 mg/kg for 10 minutes, whereas the PL trial chewed a placebo gum without caffeine. After 15 minutes rest, the stationary free throw shooting test, countermovement jump, t-test, 20-meter segmented dash test, squat in the flywheel device and running based anaerobic sprint test were conducted.

Official Title
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National Taiwan University of Sport

Conditions
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Caffeine

Intervention / Treatment
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* Dietary Supplement: caffeine gum


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 6 years of professional basketball training and with at least a top 8 national ranking 6 months of continuous training, 3 months of recovery from sports injuries such as strains and sprains. Exclusion Criteria: Non-specialized basketball players. has not trained regularly for the past 6 months. has recovered from from a sports injury for less than 3 months, or had epilepsy, hypertension, hyperlipidemia, heart disease, arthritis, osteoporosis, brain injury, or a history of caffeine allergy. Subjects with previous caffeine allergy response.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 30 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: caffeine gum<br>Chewed caffeine gum containing 3 mg/kg for 10 minutes | Dietary Supplement: caffeine gum<br>* This study investigated the effects of chewing 3 mg/kg of caffeinated gum on basketball free throw accuracy and basketball -specific performance.<br>* Other names: plocabo gum;|
| Placebo Comparator: placebo<br>Chewed placobo gum for 10 minutes | Dietary Supplement: caffeine gum<br>* This study investigated the effects of chewing 3 mg/kg of caffeinated gum on basketball free throw accuracy and basketball -specific performance.<br>* Other names: plocabo gum;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| stationary free throw | The goal percentage of stationary free throw | 15 min after intervention | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 20-meter segmented dash | Test the sprinting speed | 15 min after intervention | 
| fatigue index | Completes six 35-meter sprints at maximum effort, with a 10-second break between each sprint. The time of completion of each sprint was recorded for subsequent analysis. | 15 min after intervention | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Eccentric exercise, basketball