Investigating the effect of supplementation with vitamin C-enriched red beetroot extract on an anaerobic test

Effects of acute vitamin C-enriched beetroot supplementation on the 30-second high-intensity inertial cycle ergometer test: a crossover, double-blind, placebo-controlled clinical trial

Status

Recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20240407061440N1

Enrollment

Registered

2024-06-07

Start date

2024-05-21

Completion date

Unknown

Last updated

2024-06-24

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

Conditions

Healthy wrestlers.

Interventions

Intervention 1: The complementary group of 14 semi-professional wrestlers will each receive 1 sports drink that is a combination of red beetroot and vitamin C (8.4 mmol nitrate + 90 mg vitamin C). 3 h

Eligibility

Sex/Gender

Male

Age

18 Years to 35 Years

Inclusion criteria

Inclusion criteria: Age 18-35 years semi-professional wrestler men; More than two years of experience in sports activities with a high glycolytic energy metabolism component (such as speed tests in swimming, martial arts and team sports) that is not considered an elite athlete. Willingness to participate in research

Exclusion criteria

Exclusion criteria: The occurrence of any incident that affects a person's health. Having any acute illness during the study Unwillingness to continue cooperation in research The occurrence of complications that lead to disruption in the quality of life and exercise of the participants.

Design outcomes

Primary

Measure	Time frame
•Anaerobic peak power. Timepoint: 3 hours after consuming a sports drink or placebo and when performing the Wingate test. Method of measurement: Applying the Wingate test to the Monark bicycle.	—

Secondary

Measure	Time frame
Anaerobic mean power. Timepoint: 3 hours after consuming a sports drink or placebo and when applying the Wingate test. Method of measurement: Applying Wingate's anaerobic test to Monark bicycle.;Lactate dehydrogenase (LDH). Timepoint: 3 hours after consuming the drink, that is, before starting the warm-up exercises and immediately after the Wingate test And 24 hours later. Method of measurement: LDH Assay Kit.;Creatine phosphokinase. Timepoint: 3 hours after consuming the drink, i.e. right before starting the warm-up exercises and immediately after the Wingate test And 24 hours later. Method of measurement: Human Creatine Phosphokinase (CPK) elisa-kit.;Blood sugar. Timepoint: 3 hours after consuming the drink, i.e. right before starting the warm-up exercises and immediately after the Wingate test. Method of measurement: Glucose determination kit.	—

Measure

Time frame

Anaerobic mean power. Timepoint: 3 hours after consuming a sports drink or placebo and when applying the Wingate test. Method of measurement: Applying Wingate's anaerobic test to Monark bicycle.;Lactate dehydrogenase (LDH). Timepoint: 3 hours after consuming the drink, that is, before starting the warm-up exercises and immediately after the Wingate test And 24 hours later. Method of measurement: LDH Assay Kit.;Creatine phosphokinase. Timepoint: 3 hours after consuming the drink, i.e. right before starting the warm-up exercises and immediately after the Wingate test And 24 hours later. Method of measurement: Human Creatine Phosphokinase (CPK) elisa-kit.;Blood sugar. Timepoint: 3 hours after consuming the drink, i.e. right before starting the warm-up exercises and immediately after the Wingate test. Method of measurement: Glucose determination kit.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactMaede Nojoumi

Mashhad University of Medical Sciences

m.nojoumi78@gmail.com+98 51 3800 2418

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026