Ingestion of Beta-alanine Effects in Well-trained Tennis Players

Not Applicable

Completed

• Conditions: Beta-alanine; Placebo

• Registration Number: NCT05427409
• Lead Sponsor: Universidad Francisco de Vitoria

Brief Summary

Beta-alanine is considered as ergogenic aids with good to strong evidence for improving sports performance in specific sports context scenarios. However, most of the studies has been realized in endurance, with limited evidence in intermittent sports, especially in racket sports. Thus, the aim of this study was to explore the effects of 4-weeks ingestion of beta-alanine on neuromuscular performance in well-trained tennis players.

Detailed Description

Fourteen tennis players (23.3 ±3.7 years) between 50-250 national tennis ranking participated in this study. Participants were randomly divided into two groups that realized a neuromuscular battery after beta-alanine (4.8 gr/daily during 4-weeks) or placebo (i.e., fructose) (4.8 grams/daily during 4-weeks). Before and after the supplementation period tennis performed a neuromuscular test battery in a tennis court consisted in different test such as; serve velocity, countermovement jump, isometric handgrip strength, 10-m sprint, modified 5-0-5 agility test and repeated sprint ability. After 48 h of the realization of neuromuscular test battery, tennis players performed VO2max consumption test (i.e., treadmill).

Study Timeline

• Study Start: 2020-11-04
• Primary Completion: 2021-06-01
• Study Completion: 2021-06-01
• Status Verified: 2022-06
• Study First Submitted: 2022-06-16
• Study First Submitted QC: 2022-06-16
• Last Update Submitted: 2022-06-16
• Study First Posted: 2022-06-22
• Last Update Posted: 2022-06-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 14

Inclusion Criteria

• Well-trained tennis players, between 18-35 years old (50-200 between tennis ranking)

Exclusion Criteria

• Suffering from any chronic pathology or an injury in the month prior to the investigation.
• Intolerance to beta-alanine ingestion
• Amateur tennis players.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Primary Outcome Measures

Name	Time	Method
VO2 max treadmill test	4-weeks	Using VO2 max analyzer (Ergostik, Geratherm Respiratory, Ergostik, Geratherm, Germany)
Repeated sprint ability test.	4-weeks	Infrared photocells system (Microgate, Italy)

Secondary Outcome Measures

Name	Time	Method
10m sprint	4-weeks	Infrared photocells system (Microgate, Italy)
Serve velocity	4-weeks	Stroke velocity radar gun (Radar Pocket, South Korea)
Isometric handgrip strength	4-weeks	Hand held dynamometer (Takei, Japan)
Modified agility test 5-0-5	4-weeks	Infrared photocells system (Microgate, Italy)
Contermovement Jump	4-weeks	Contact Jump (Chronojump, Spain)

Trial Locations

Locations (1)

Universidad Francisco de Vitoria; 🇪🇸 Pozuelo De Alarcón, Madrid, Spain