Effects of Watermelon Juice on Heart Rate Recovery and Post-exercise Muscle Soreness

Not Applicable

Recruiting

• Conditions: Heart Rate Recovery
• Interventions: Other: Sport drink; Other: Water; Other: Watermelon juice; Other: Sugar water

• Registration Number: NCT03380195
• Lead Sponsor: San Diego State University

Brief Summary

The purpose of this study was to determine the effects of a pre-exercise, single practical dose of watermelon juice, Gatorade, sugar water or water on heart rate recovery, blood lactate levels, and 24-hour post exercise muscle soreness.

Detailed Description

Not available

Study Timeline

• Study Start: 2016-09-01
• Study First Submitted: 2017-12-11
• Study First Submitted QC: 2017-12-14
• Study First Posted: 2017-12-21
• Status Verified: 2025-03
• Last Update Submitted: 2025-03-26
• Last Update Posted: 2025-04-01
• Primary Completion: 2025-12
• Study Completion: 2025-12

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 27

Inclusion Criteria

• ages of 21-50 healthy adults

Exclusion Criteria

• Suffering from injury
• Chronic inflammatory conditions
• Required dietary supplement use
• Required medication which affects blood pressure
• Smoking
• Pregnant woman
• Allergy to watermelon

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Sport drink	Sport drink	-
Water	Water	-
Watermelon juice	Watermelon juice	-
Sugar water	Sugar water	-

Primary Outcome Measures

Name	Time	Method
Change of heart rate after submax exercise	Baseline and every minute post exercise for a maximum 20 minutes post exercise.	The participants then were fitted to cycling shoes and familiarized with the Lode cycle ergometer (Lode Excalibur Sport, Groningen, Netherlands), completed a warm-up and were asked to perform a criterion work rate trial ending at 80% predicted HRmax. Heart rate was recorded every minute post exercise for a maximum of 20 minutes post exercise.

Trial Locations

Locations (1)

Exercise and Nutritional Sciences, SDSU; 🇺🇸 San Diego, California, United States