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NCT07219498NARecruitingAccepts Healthy Volunteers

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

University of Minnesota

Start Date

2/5/2026

Completion Date

12/31/2026

Summary

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).

Eligibility Criteria

Age Range: 18 years to 30 years

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

Interventions

DIETARY_SUPPLEMENT

Lactobacillus casei

OTHER

Placebo Capsule(s)

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Conditions

Exercise Induced Muscle DamageDelayed Onset Muscle Soreness (DOMS)

Locations

University of Minnesota

Minneapolis, Minnesota 55455

United States