Recruiting

Haskap Juice

Sponsor:

Montana State University

Code:

NCT07344727

Conditions

Inflammation

Oxidative Stress

Resistance Exercise

Recovery

Exercise Performance Recovery

Eligibility Criteria

Sex: All

Age: 18 - 35

Healthy Volunteers: Accepted

Interventions

Haskap berry smoothie

Placebo Comparator

Study Details

Brief summary:

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.

  • Participants will be asked to drink either Haskap juice or placebo and follow a low polyphenolic diet
  • Participants will perform an intense resistance workout
  • Participants will have their blood drawn before and after the workout
  • Performance will be analyzed at 24, 48 and 72 hours after the workout

Conditions

Inflammation

Oxidative Stress

Resistance Exercise

Recovery

Exercise Performance Recovery

Study ID

NCT07344727

Start date

Oct 21, 2025

Status verified date

Jan, 2026

Completion date

May, 2026

Anticipated

Primary completion date

Mar, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 35

Healthy Volunteers: Accepted

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.

Study Design

Enrollment

30 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Supportive Care

Interventions and Outcome Measures

Arms

placebo comparator: Placebo Control

The placebo supplement will have no polyphenol content and will be carbohydrate-matched to the experimental group. A twice daily dose (10-12 hours apart) will be consumed for 11 days.

experimental: Haskap

The haskap supplement will consist of a haskap berry smoothie. A twice daily dose (10-12) hours apart will be consumed for 11 days.

Interventions

Haskap berry smoothie

A smoothie blend of berries and water

Placebo Comparator

A smoothie with no polyphenolic content and matched in carbohydrate composition to the experimental haskap smoothie

Primary outcome measure

  • Force Production [ Time Frame: 72 hours ]
  • Barbell Velocity [ Time Frame: 72 hours ]
  • Vertical Jump [ Time Frame: 72 hours ]
  • Inflammation (pg/mL) [ Time Frame: 11 days ]
  • Lipid peroxidation [ Time Frame: 11 days ]
  • Creatine Kinase [ Time Frame: 11 days ]
  • C-Reactive Protein [ Time Frame: 11 days ]
  • Protein Carbonyls [ Time Frame: 11 days ]

Central Contacts and Locations

Central contacts

Bryce Peterson

40666975460brycepeterson@montana.edu

Adrianna Yeats

3864516656adriannayeats@montana.edu

Locations

Montana State University

Recruiting

Bozeman, Montana, United States, 59715

Contacts

Mary P Miles

406-994-6678mmiles@montana.edu

Bryce Peterson

4066975460

More Information

Sponsor

Montana State University

Last update posted

Jan 21, 2026

Last verified

Jan, 2026

Keywords

  • exercise performance
  • resistance exercise
  • recovery
  • oxidative stress
  • inflammation

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Montana State University on 2026-01-21.