Mrs. Rezaee

Acute effect of L-arginine supplementation on fat and carbohydrate metabolism before, during, and after endurance exercise in athletes - Acute effect of L-arginine supplementation on fat and carbohydrate metabolism during endurance exercise in athletes

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000045780

Enrollment

Registered

2021-12-01

Start date

2021-04-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

in progress

Interventions

6 g of Al-arginine supplement

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: 1Having calendar age in the range of 16 - 20 years Having a minimum of five years of football playing a regular basis lack of acute respiratory complications, asthma, and any disease that is considered harmful to the physician according to the physician

Exclusion criteria

Exclusion criteria: -1having any symptoms of headaches, dizziness, and feeling of weakness while testing 2- Failure to complete the test period 3- Having a sensitivity to the use of Al -Arginine

Design outcomes

Primary

Measure	Time frame
: Acute L-arginine supplementation increased maximal oxygen consumption, maximal heart rate, and prolonged fatigue during progressive exercise. Acute use of L-arginine supplementation also reduced maximal fat oxidation after exercise, increased maximal carbohydrate oxidation, and increased respiratory exchange ratio after progressive exercise. In addition, acute L-arginine supplementation increased blood glucose and glycerol concentrations	—

Measure

Time frame

: Acute L-arginine supplementation increased maximal oxygen consumption, maximal heart rate, and prolonged fatigue during progressive exercise. Acute use of L-arginine supplementation also reduced maximal fat oxidation after exercise, increased maximal carbohydrate oxidation, and increased respiratory exchange ratio after progressive exercise. In addition, acute L-arginine supplementation increased blood glucose and glycerol concentrations

—

Countries

Asia(except Japan)

Contacts

Public ContactAdel Donyaee

Shahrood University of Technology Department of Physical Education and Sport Sciences, School of Physical Education and Sport Sciences

adelldonyai@yahoo.com00989153350749

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026