Effects of L-arginine on exercise performance

The Effects of L-arginine Supplementation on Anaerobic Exercise Performance

Not applicable Interventional University of Manitoba · NCT06475391

This study is testing if taking L-arginine can help young, healthy adults perform better during short bursts of exercise compared to a placebo.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment20 (estimated)
Ages18 Years to 39 Years
SexAll
SponsorUniversity of Manitoba Academic / other
Locations1 site (Winnipeg, Manitoba)
Trial IDNCT06475391 on ClinicalTrials.gov

What this trial studies

This study evaluates whether acute ingestion of L-arginine can enhance anaerobic exercise performance in young, healthy, recreationally active adults. Participants will undergo a randomized, double-blind, placebo-controlled, cross-over design, where they will complete two exercise sessions after ingesting either L-arginine or a placebo. Measurements will include body composition, resting blood pressure, and various performance metrics such as grip strength and jump height. A one-week wash-out period will separate the two testing sessions to ensure accurate comparisons.

Who should consider this trial

Good fit: Ideal candidates are recreationally active individuals aged 18-39 who exercise at least three times a week.

Not a fit: Patients with cardiovascular, metabolic, neurological, or psychological diseases, as well as smokers and those on medication, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into nutritional supplementation that enhances athletic performance in young adults.

How similar studies have performed: While the effects of L-arginine on exercise performance have been explored, this specific approach using a double-blind, placebo-controlled design is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Recreationally physically active individuals will be recruited for the study. In this context it means all participants perform 1-hour of exercise per day over 3-days per week at a minimum for 1-month. All participants will be between the ages of 18-39 years of age.

Exclusion Criteria:

* Exclusion criteria for the study includes: 1) smokers; 2) unhealthy (have cardiovascular, metabolic, neurological, or psychological disease); 3) taking medication for any condition; 4) any known allergy to the supplements of interest (L-arginine or placebo \[dextrose\]).

Where this trial is running

Winnipeg, Manitoba

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Skeletal MuscleHuman Performance
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.