Completed

Grape Seed Extract for Heart Rate Recovery in Young Individuals

What is being tested

600 mg grape seed extract

+ 600 mg Starch

Dietary Supplement

Who is being recruted

From 18 to 30 Years

+2 Eligibility Criteria

See all eligibility criteria

How is the trial designed

Prevention Study

Placebo-Controlled

Interventional

Study Start: October 2024

See protocol details

Summary

Principal SponsorCalifornia Baptist University

Last updated: January 28, 2026

Sourced from a government-validated database.Claim as a partner

Study start date: October 3, 2024

Actual date on which the first participant was enrolled.

The study investigates whether grape seed extract (GSE) can help improve how quickly the heart rate returns to normal after exercise in young people. The main idea is that certain body responses might slow down this process and that taking GSE could make it faster. By focusing on young individuals, the research aims to find new ways to support heart health and recovery after physical activities, potentially offering a simple supplement-based approach to enhance cardiovascular recovery. Participants in the study take part in a controlled exercise test using a stationary bike and a handgrip exercise device. They are given either grape seed extract or a placebo, with both treatments appearing identical to ensure unbiased results. Heart rate recovery is carefully tracked every few seconds after the exercise to see how quickly it returns to resting levels. The results between the grape seed extract and placebo are compared to determine the extract's effectiveness. Participants are monitored closely to ensure safety and accuracy throughout the trials.

Official TitleEffect of Acute Grape Seed Extract Supplementation on the Heart Rate Recovery in Young Individuals

NCT07137988

Principal SponsorCalifornia Baptist University

Last updated: January 28, 2026

Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.

Design Details

12 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Prevention Study

Prevention studies aim to stop a disease from developing. They often involve people at risk and test things like vaccines, lifestyle changes, or preventive medications.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.

Criteria

Male

Biological sex of participants that are eligible to enroll.

From 18 to 30 Years

Range of ages for which participants are eligible to join.

Healthy volunteers allowed

If individuals who are healthy and do not have the condition being studied can participate.

Criteria

1 inclusion criteria required to participate

good health, nonsmokers, those not taking medications that could affect cardiovascular function

1 exclusion criteria prevent from participating

hypertension, muscular skeletal disorders

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.

Treatment Groups

Study Objectives

2 intervention groups are designated in this study

50% chance of being blinded to the placebo group

Treatment Groups

Group I

Experimental

Grape seed extract: 300 mg, two capsules Starch: 300 mg, two capsules

Group II

Placebo

Heart rate recovery with placebo (starch, 300 mg, 2 capsules)

Study Objectives

Primary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

California Baptist University

Riverside, United StatesOpen California Baptist University in Google Maps

CompletedOne Study Center