The purpose of this study is to find out if taking a natural supplement made from the Juçara fruit (a Brazilian berry rich in antioxidants called anthocyanins) can help the body recover faster after damage caused by exercise. Researchers want to see if Juçara can reduce muscle soreness and help muscles regain their strength and quality more quickly compared to a placebo (a "dummy" pill with no active ingredients). What happens during the study? The study included 24 healthy, active men. It was a "crossover" study, meaning every participant tried both the Juçara supplement and the placebo at different times. Supplement Phase: Participants took 12 capsules a day for 7 days. Muscle Damage Test: To cause temporary muscle damage, participants performed a specific jumping protocol (100 maximal jumps). Recovery Monitoring: Researchers tracked the participants for 72 hours after the jumps to measure: How high they could jump (strength/performance). Muscle soreness (using a pain scale). Muscle "quality" and stiffness (using ultrasound imaging). Wait Period: After the first phase, participants waited 14 days (washout) before switching to the other supplement to repeat the process.
Age range
18 Years – 40 Years
Sex
MALE
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Countermovement Jump Height
Timeframe: From pre Exercise Induced Muscle Damage protocol to Post-72h Exercise Induced Muscle Damage protocol.
Contermovement jump power
Timeframe: From pre Exercise Induced Muscle Damage protocol to Post-72h Exercise Induced Muscle Damage protocol.
Quadriceps and hamstrings Echointensity
Timeframe: From pre Exercise Induced Muscle Damage protocol to Post-72h Exercise Induced Muscle Damage protocol.
Quadriceps and Hamstrings Cross-Sectional Area
Timeframe: From pre Exercise Induced Muscle Damage protocol to Post-72h Exercise Induced Muscle Damage protocol
Vastus Lateralis and Biceps Femoris Long Head stiffness
Timeframe: From pre Exercise Muscle Damage Protocol to Post-72h Exercise Induced Muscle Damage protocol.
Quadriceps and Hamstrings muscle soreness
Timeframe: From pre Exercise Induced Muscle Damage protocol to Post-72h Exercise Induced Muscle Damage protocol.