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Completed

NCT Number: NCT06079996

Caffeinated Gum Softball Performance

The purpose of this study was to investigate the effects of caffeinated chewing gum on female softball pitching and hitting performance. 24 trained female softball players (10 pitchers and 14 fielders) were divided into a caffeine chewing gum trial (CAF) or a placebo trial (PLA) in a single-blind, randomized, crossover experimental design. Two pieces of gum containing 100 mg of caffeine (CAF) or without caffeine (PLA) were chewed for 10 minutes and then spit out, followed by a 15-minute warm-up. The physical tests included grip strength and countermovement jump. The softball-specific tests included pitching (fast ball speed) or hitting (exit speed). The two trials were separated by seven days.

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Key information

Conditions

Caffeine

Age range

20 year–30 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

National Taiwan University of Sport

Taichung, 404, Taiwan

About this study

This study utilized a randomized, crossover, single-blind experimental design. At least two familiarization tests were conducted one week before the formal trial to ensure each participant was familiar with the experimental procedures. Before the first formal trial, participants were randomly assigned to either the caffeinated chewing gum trial (CAF) with 200 mg of caffeine or the placebo trial (PLA) without caffeine, seven days apart (Figure 1). The primary outcome was the pitching and hitting performance, and the secondary outcomes were hand grip strength and height of countermovement jump.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 1. adult female; 2. at least six years of professional softball training and familiarity with all softball skills; 3. caffeine intake of less than 80 mg daily.

Exclusion criteria

  • 1. not professionally trained; 2. having a medical condition for which exercise is not recommended, such as hypertension, hyperlipidemia, or heart disease; 3. having any musculoskeletal injuries within the last six months or not being able to complete a full trial; 4. having a history of caffeine allergy.

Treatment and study plan

CAFFEINE GUM

Other

Observing the effect of chewing gum on the performance of female softball players.

Primary outcomes

  1. pitching performance

    Time frame: 15 min after intervention

    Throw 10 fastballs

  2. batting performance

    Time frame: 15 min after intervention

    Hit 15 balls

Interested in participating?

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Sponsors and collaborators

Lead sponsor

Chih-Hui Chiu

Other

Registry information

Official study title

Effects of Caffeinated Gum on a Batting and Pitching Performance of Female Softball Players: a Crossover Trial

Important dates

Study start
2022
Primary completion
2022
Study completion
2022
First posted
Oct 12, 2023
Registry last updated
Oct 12, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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