Berry boost: juçara may soothe sore muscles
NCT ID NCT07584460
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a supplement made from Juçara, a berry rich in antioxidants, can help muscles recover after intense exercise. Twenty-four healthy, active men took either the supplement or a placebo for a week, then did 100 maximal jumps to cause temporary muscle damage. Researchers measured jump height, muscle soreness, and muscle quality over the next 72 hours. The goal was to see if Juçara could reduce soreness and speed up strength recovery.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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24 people
The number who actually took part.
- Started
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Jun 2024
- Finished
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Dec 2024
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 40 years
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Males * Aged 18-40 years * Physically active, defined as performing at least three exercise sessions per week according to IPAQ questionnaire * No history at lower-limb within the previous six months * No medical restrictions for maximal exercise testing * No allergy to red fruits * No physical, cognitive and/or psychological limitations affecting the execution or understanding of the protocol * No history of lower-limb surgery * No use nutritional supplements within 30 days prior to study initiation * Abstention from caffeine, cacao, yerba mate tea, and soft drinks during the study protocol. Exclusion Criteria: * Individuals younger than 18 or older than 40 years * Not physically active, defined as performing fewer than three exercise sessions per week according to IPAQ questionnaire * Presence of history at lower-limb injury within the previous six months * Presence of medical restrictions for maximal exercise testing * Known allergy to red fruits * Presence of physical, cognitive and/or psychological limitations affecting the execution or understanding of the protocol * History of lower-limb surgery * Use of nutritional supplements within 30 days prior to study initiation * Inability to abstain from caffeine, cacao, yerba mate tea, and soft drinks during the study protocol
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Centro de Educação Física e Desportos
Santa Maria, Rio Grande do Sul, 97105900, Brazil