NCT07404540

Brief Summary

This study enrolled untrained young adults to evaluate the effects of β-alanine supplementation combined with a structured exercise training program. Participants were randomly assigned to receive either β-alanine or a placebo while completing a six-week training regimen. Before and after the intervention, physical performance tests and blood samples were collected to assess changes in performance measures and biochemical markers in the blood. The purpose of the study was to determine how β-alanine supplementation influences exercise performance and related physiological outcomes in individuals who had not previously engaged in regular training.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
43

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2012

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2012

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2012

Completed
13.9 years until next milestone

First Submitted

Initial submission to the registry

January 29, 2026

Completed
13 days until next milestone

First Posted

Study publicly available on registry

February 11, 2026

Completed
Last Updated

February 11, 2026

Status Verified

February 1, 2026

Enrollment Period

2 months

First QC Date

January 29, 2026

Last Update Submit

February 4, 2026

Conditions

Keywords

β-alanineExercise trainingDietary supplementationPhysical performanceUntrained adults

Outcome Measures

Primary Outcomes (2)

  • Change in maximal muscle strength

    Maximal muscle strength was assessed by dynamometric measurements of maximal voluntary isometric contraction.

    Baseline and 6 weeks

  • Change in aerobic capacity

    Aerobic capacity was estimated by VO₂max derived from the 20-m multistage fitness test (shuttle run).

    Baseline and 6 weeks

Secondary Outcomes (7)

  • Body mass index (BMI)

    Baseline and 6 weeks

  • Body fat percentage

    Baseline and 6 weeks

  • Forced vital capacity (FVC)

    Baseline and 6 weeks

  • Acute blood lactate response to dynamometric exercise

    Baseline and 6 weeks

  • Plasma β-alanine concentration

    Baseline and 6 weeks

  • +2 more secondary outcomes

Other Outcomes (1)

  • Adverse events

    Up to 6 weeks

Study Arms (2)

β-Alanine Supplementation

EXPERIMENTAL

Participants received β-alanine supplementation at a dose of 50 mg/kg/day, divided into multiple daily doses, in combination with a supervised six-week exercise training program.

Dietary Supplement: β-Alanine

Placebo

PLACEBO COMPARATOR

Participants received a visually identical placebo following the same dosing schedule as the supplementation group, in combination with a supervised six-week exercise training program.

Dietary Supplement: Placebo

Interventions

β-AlanineDIETARY_SUPPLEMENT

β-alanine was administered orally at a dose of 50 mg/kg/day, divided into multiple daily doses and consumed with meals, throughout the six-week training intervention.

β-Alanine Supplementation
PlaceboDIETARY_SUPPLEMENT

Participants received visually identical placebo capsules following the same dosing schedule as the β-alanine group during the six-week training intervention.

Placebo

Eligibility Criteria

Age18 Years - 30 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy young adults aged 18-30 years.
  • Untrained individuals without participation in structured resistance or endurance training during the previous 6 months.
  • Not physically inactive, but not engaged in regular structured exercise training.
  • Ability to participate in a six-week supervised multicomponent exercise training program.
  • Willingness to comply with study procedures, training sessions, and supplementation protocol.
  • Provision of written informed consent.

You may not qualify if:

  • Known cardiovascular, metabolic, neuromuscular, or musculoskeletal disease.
  • Acute injury at the time of enrollment.
  • Regular use of medications or dietary supplements affecting muscle metabolism or exercise performance.
  • Participation in structured resistance or endurance training during the previous 6 months.
  • Failure to comply with the study protocol or training requirements.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pécs

Pécs, Hungary

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants were randomly assigned in a 1:1 ratio to receive either β-alanine supplementation or a matchin
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

January 29, 2026

First Posted

February 11, 2026

Study Start

January 1, 2012

Primary Completion

March 1, 2012

Study Completion

March 1, 2012

Last Updated

February 11, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be shared publicly due to data protection and privacy considerations. De-identified data may be made available upon reasonable request to the corresponding author, subject to institutional approval.

Locations