Effects of a 5-Week Probiotic Supplementation Intervention on Markers of Delayed Onset Muscle Soreness

NCT ID: NCT07219498

Last Updated: 2025-12-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-14

Study Completion Date

2026-04-30

Brief Summary

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The purpose of this study is to evaluate how probiotic supplementation (PS) influences post-exercise recovery in healthy, physically active young adults. Researchers aim to determine if the Lactobacillus casei probiotic strain reduces symptoms of delayed onset muscle soreness (DOMS) based on perceived muscle soreness, pressure pain threshold, and power output following exercise induced muscle damage (EIMD).

Detailed Description

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Conditions

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Exercise Induced Muscle Damage Delayed Onset Muscle Soreness (DOMS)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Probiotic Group

Group Type ACTIVE_COMPARATOR

Lactobacillus casei

Intervention Type DIETARY_SUPPLEMENT

Probiohealth is the manufacturer of this strain and they use a stringent quality control program that utilizes a multi point product variability check system.

Placebo Group

Group Type PLACEBO_COMPARATOR

Placebo Capsule(s)

Intervention Type OTHER

The brand name of placebo capsules that will be used in this study is Magic Bullet Placebo Capsules. This placebo is manufactured by Progressive Placebo as stated on the product label.

Interventions

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Lactobacillus casei

Probiohealth is the manufacturer of this strain and they use a stringent quality control program that utilizes a multi point product variability check system.

Intervention Type DIETARY_SUPPLEMENT

Placebo Capsule(s)

The brand name of placebo capsules that will be used in this study is Magic Bullet Placebo Capsules. This placebo is manufactured by Progressive Placebo as stated on the product label.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* complete a minimum of 150 minutes a week of at least moderate intensity exercise in either an endurance-based or resistance-based training style based on a self-reported physical activity over the past month
* good general health with no injuries or health conditions that would affect physical activity
* willing to abstain from consistent NSAID use and other probiotic supplements over the course of this study

Exclusion Criteria

* known musculoskeletal injuries or physical limitations that could interfere with performing the designated physical activity required
* underlying conditions that could place them at an increased risk during exercise such as cardiovascular, respiratory, or metabolic diseases
* currently take a probiotic supplement, are prescribed and taking an antibiotic during the intervention, or report using NSAIDs or steroids within the recovery time window
* report using an NSAID more than twice a week on a regular basis
Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Minnesota

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Mary Stenson

Role: PRINCIPAL_INVESTIGATOR

University of Minnesota

Locations

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University of Minnesota

Minneapolis, Minnesota, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Jakob Fischer

Role: CONTACT

Phone: 507-236-8051

Email: [email protected]

Facility Contacts

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Jakob Fischer

Role: primary

Other Identifiers

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Probiotic Supplementation

Identifier Type: -

Identifier Source: org_study_id