Carbohydrate Rinsing and Caffeine Gum on Performance of Romanian Deadlifts Performance

Not Applicable

Completed

• Conditions: Carbohydrate; Caffeine
• Interventions: Other: Carbohydrate mouth rinsing; Other: 200 mg caffeine gum

• Registration Number: NCT05900349
• Lead Sponsor: National Taiwan Sport University

Brief Summary

Two experiments were completed to investigate the effects of carbohydrate mouth rinsing and caffeine gum chewing on inertial resistance exercise performance. It was found that both carbohydrate gargling and caffeine gum chewing could improve inertial resistance exercise performance.

Detailed Description

This study compared the effects of mouth rinsing with carbohydrates trial (CMR) or a placebo trial (PL) on inertial weight training performance with an inertial weight resistance device. The participants were recruited in this study. Participants were randomly allocated to the CMR and PL groups and subjected to a crossover experiment in which they performed maximum inertial resistance training comprising five sets of six reps, with 3-min rests between sets. After deducting the first repetition of each sets, the mean values from the five sets were analyzed.

Study Timeline

• Study Start: 2022-03-18
• Primary Completion: 2022-03-18
• Study Completion: 2022-10-21
• Study First Submitted: 2023-03-24
• Status Verified: 2023-06
• Study First Submitted QC: 2023-06-08
• Last Update Submitted: 2023-06-08
• Study First Posted: 2023-06-12
• Last Update Posted: 2023-06-12

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 20

Inclusion Criteria

1. regular weight training habits,
2. familiarity with Romanian deadlift movements
3. no chronic diseases such as hypertension, diabetes, and kidney disease or sports injuries such as lacerated knee ligaments, inflammation and rupture of tendons, strained biceps femoris or quadriceps, and strained biceps within the 6 months prior.

Exclusion Criteria

1. did not have regular exercise habits,
2. were unfamiliar with Romanian deadlift movements
3. had certain health problems that prevented them from performing exercise or injury from which they had not recovered for more than 6 months were excluded.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Carbohydrate mouth rinsing	Carbohydrate mouth rinsing	Rinsing mineral water for 20 seconds
caffeine gum	200 mg caffeine gum	placebo gum chewing for 10 min

Primary Outcome Measures

Name	Time	Method
eccentric peak power performance of Romanian deadlifts on flywheel training device	immediately after intervention	eccentric peak power (watt)
average power performance of Romanian deadlifts on flywheel training device	immediately after intervention	average power (watt)
concentric peak power performance of Romanian deadlifts on flywheel training device	immediately after intervention	concentric peak power (watt)

Secondary Outcome Measures

Name	Time	Method
peak overload performance of Romanian deadlifts on flywheel training device	immediately after intervention	peak overload (%)
average force performance of Romanian deadlifts on flywheel training device	immediately after intervention	average force (N)

Trial Locations

Locations (1)

National Taiwan University of Sport; 🇨🇳 Taichung, Taiwan