Muscle DamageNCT07433686
Saskatoon Berry Juice for Muscle Recovery
A study testing Dietary Supplement in people with Muscle Damage, run by University of Saskatchewan at 1 site in Canada.
Trial summary
This study will evaluated the effect of Saskatoon berry juice on recovery from muscle-damaging exercise. Read more about this study
- Who is it for?
- Ages 18 to 35 yearsHealthy volunteers can take part
- Conditions the study is for
- Muscle Damage
- What is being tested?
- Dietary Supplement
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 30 participants
- Where
- 1 siteCanada
- Study dates
- 26 Feb 2026to 31 Dec 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 35 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Male or female
- aged 18-35y
Who cannot join
- Conditions that might be affects by exercise as determined by the "Get Active Questionnaire"
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Canada1 site, 1 recruiting
- Recruiting
Physical Activity Complex, University of Saskatchewan
Saskatoon, Saskatchewan, S7N 5B2
Philip Chilibeck, PhD, 306-230-3849, phil.chilibeck@usask.ca
About this study
Official title: Effect of Short-term Saskatoon Berry Supplementation on Muscle Recovery
This study will evaluated the effect of Saskatoon berry juice on recovery from muscle-damaging exercise.
Read the detailed description
Saskatoon berries are high in polyphenols which are are anti-inflammatory and act as anti-oxidants. They therefore have potential to protect muscle from damage induced by intense exercise. Thirty participants will be randomized to receive Sasaktoon berries (375 ml) or placebo every day for 10 days. On the seventh day participants will perform 6 sets of intense biceps curl exercise. Isometric muscle strength, muscle swelling, and muscle soreness will be assessed before exercise, immediately after exercise, and 24, 48, and 72 hours after the exercise session. We hypothesize the group receiving Saskatoon berries will have faster recovery of muscle strength, and reduction in swelling and muscle soreness after the exercise session.
- Conditions
- Muscle Damage
- Being tested
- Dietary Supplement, Placebo
- Keywords
- muscle damage, Saskatoon berries, strength
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Dietary SupplementDietary supplement
Saskatoon berries (375 ml)
PlaceboDietary supplement
Placebo (375 ml)
| Study group | Role | What they receive |
|---|---|---|
| Placebo | Placebo comparator | Placebo (375 ml) Receives: Dietary Supplement: Placebo |
| Saskatoon berry juice (375 ml) | Experimental | Saskatoon berry juice Receives: Dietary Supplement: Dietary Supplement |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in isometric biceps strength with a dynamometer (Nm)
Measured: 72 hours
Secondary outcomes (2)
Change in biceps muscle thickness with ultrasound (cm)
Measured: 72 hours
Change in muscle soreness with visual analog scale (score ranges from 0 to 10). No soreness = 0, maximal soreness = 10
Measured: 72 hours
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Feb 2026
- Study start26 Feb 2026
- Primary completion31 Aug 2026 (estimated)
- Study completion31 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Muscle DamageStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Saskatchewan
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Phil Chilibeck, University of Saskatchewan
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07433686
- Sponsor's protocol ID
- 006
- Status last verified
- Apr 2026
- First submitted
- 19 Feb 2026
- Last updated
- 28 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 28 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Short-term Saskatoon Berry Supplementation on Muscle Recovery
- ClinicalTrials.gov ID
- NCT07433686
- Acronym / sponsor ID
- 006
- Conditions
- Muscle Damage
- Keywords
- muscle damage, Saskatoon berries, strength
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- University of SaskatchewanUniversity, hospital or other
- Study start
- 26 Feb 2026 (actual)
- Primary completion
- 31 Aug 2026 (estimated)
- Study completion
- 31 Dec 2026 (estimated)
- First posted
- 25 Feb 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will evaluated the effect of Saskatoon berry juice on recovery from muscle-damaging exercise.
Detailed description
Saskatoon berries are high in polyphenols which are are anti-inflammatory and act as anti-oxidants. They therefore have potential to protect muscle from damage induced by intense exercise. Thirty participants will be randomized to receive Sasaktoon berries (375 ml) or placebo every day for 10 days. On the seventh day participants will perform 6 sets of intense biceps curl exercise. Isometric muscle strength, muscle swelling, and muscle soreness will be assessed before exercise, immediately after exercise, and 24, 48, and 72 hours after the exercise session. We hypothesize the group receiving Saskatoon berries will have faster recovery of muscle strength, and reduction in swelling and muscle soreness after the exercise session.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Placebo | Placebo comparator | Dietary Supplement: PlaceboPlacebo (375 ml) |
| Saskatoon berry juice (375 ml) | Experimental | Dietary Supplement: Dietary SupplementSaskatoon berry juice |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- Male or female
- aged 18-35y
Key exclusion criteria (1 listed)
- Conditions that might be affects by exercise as determined by the "Get Active Questionnaire"
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Dietary SupplementSaskatoon berries (375 ml) | Dietary supplement | Saskatoon berry juice (375 ml) |
| PlaceboPlacebo (375 ml) | Dietary supplement | Placebo |
Primary outcome
Change in isometric biceps strength with a dynamometer (Nm)
Time frame: 72 hours
2 secondary outcomes
Change in biceps muscle thickness with ultrasound (cm)
Time frame: 72 hours
Change in muscle soreness with visual analog scale (score ranges from 0 to 10). No soreness = 0, maximal soreness = 10
Time frame: 72 hours
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Apr 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Dietary Supplement in people with Muscle Damage, run by University of Saskatchewan at 1 site in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 28 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Philip Chilibeck, PhD (306-230-3849, phil.chilibeck@usask.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in isometric biceps strength with a dynamometer (Nm) (time frame: 72 hours). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Apr 2026.