NCT07344727 · Montana State University
Impact of Haskap Berries on Recovery From High Intensity Resistance Training
What this study is about
The purpose of this clinical trial is to determine how certain food items affect oxidative stress, inflammation, and performance recovery from exercise induced muscle damage in a resistance trained population.
View original scientific description
The purpose of this clinical trial is to determine how certain food items affect oxidative stress, inflammation, and performance recovery from exercise induced muscle damage in a resistance trained population. The main questions The investigators aim to answer are the following: * Do Haskaps speed the recovery of oxidative stress and inflammation markers after an intense lower body workout in resistance trained adults? * Do Haskaps speed the recovery of performance measures after an intense lower body workout in resistance trained adults? * The data collected in this investigation may also be used to ask additional questions not yet identified. For example, the investigators may use the stored samples to evaluate how the blood metabolites of participants differ before and after intense exercise. These additional questions are called secondary analyses. Please note that no genetic analysis will be conducted and racial and ethnic differences among participants will not be used in any secondary analyses. Researches will compare Haskap juice to a color, flavor and carbohydrate matched placebo to see if Haskaps speed recovery in inflammation, oxidative stress and performance.
Interventions
DIETARY_SUPPLEMENT
Haskap berry smoothie
A smoothie blend of berries and water
DIETARY_SUPPLEMENT
Placebo Comparator
A smoothie with no polyphenolic content and matched in carbohydrate composition to the experimental haskap smoothie
Primary outcome measures
Force Production
Time frame: 72 hours
Maximal Voluntary Contraction (MVC) to assess force production of knee extensors at 60 degrees.
Barbell Velocity
Time frame: 72 hours
Barbell velocity will be measure to determine how squat velocity recovers over the course of the study.
Vertical Jump
Time frame: 72 hours
Force plates will be used to evaluate vertical jump height.
Inflammation (pg/mL)
Time frame: 11 days
Serum interleukin (IL) IL-6, IL-10, IL-1ra, tumor necrosis factor alpha (TNF-alpha),
Lipid peroxidation
Time frame: 11 days
Plasma Malondialdehyde (MDA)
Creatine Kinase
Time frame: 11 days
Plasma
C-Reactive Protein
Time frame: 11 days
Plasma
Protein Carbonyls
Time frame: 11 days
Plasma
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- 2+ years of barbell squat experience
- Currently squatting at least once a week
Exclusion criteria
- BMI \<18 or \> 40 kg/m\^2
- potential allergy to Haskap or placebo ingredients
- anti-inflammatory, weight loss, anabolic steroids, testosterone, or other drugs that may interfere with the measures of the study or any other medications that may interfere with study measures
- pregnant or lactating woman
- diagnosis with type 1 or type 2 diabetes, hypo-/hyperthyroidism or any other condition that may interfere with study measures
- smoke cigarettes
- lower extremity injury within the last year
- currently following a special diet including vegan, vegetarian, low carbohydrate, or ketogenic.
- currently consuming any of the following products: tart cherry juice, pomegranate juice, or 1 or more cups of acai or other berries per day.
Where
- Bozeman, Montana
Collaborators
Montana State Agricultural Experiment Station
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jan 21, 2026 · Source of record for eligibility and locations