An interventional study of Topical shower gel and Comparator in Post-Exercise Recovery and Muscle Soreness, sponsored by The Humanix. Recruiting at 1 site in Ireland. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-02.
Sponsored by The Humanix · Not applicable, Interventional, and Basic science
The objective of this study is to evaluate any potential claims for a topical shower gel product about perceived recovery and other aspects of user experience and consumer satisfaction following HYROX exercise training.
Healthy, recreationally active male and female adults aged 18-65 years will be recruited for this study (target enrolment: 100 participants; operational minimum: 70 participants). Participants will be randomly allocated in a 1:1 ratio, stratified by sex, to either the test intervention group or the active comparator group.
Participants will complete baseline screening and pre-exercise assessments via secure digital forms. Following a standardized exercise session, participants will record their immediate post-exercise soreness on a 0-10 Numerical Rating Scale (NRS) before any study product is applied.
The assigned coded product is then issued in ambiguous, non-descriptive packaging to ensure participant blinding. The product will be used on three separate occasions: the first post-session shower (within 24 hours post-exercise), and on each of the two subsequent days (a total of three applications over the 72-hour post-exercise period).
Participants will complete remote follow-up surveys at 24 hours, 48 hours (capturing the primary 0-10 muscle soreness endpoint before the third product application), and 72 hours post-exercise. These surveys assess perceived muscle soreness, perceived recovery, tolerability, adherence, application experience, user satisfaction, consumer perception, and a 72-hour blinding check.
256 studies on the registry are indexed under Myalgia; 46 are open to participants now.
This study's planned enrollment of 100 is above the median of 44 across 216 interventional studies indexed under Myalgia.
Browse Myalgia studies →This is the only study on the registry with The Humanix as lead sponsor.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Topical shower gel containing a proprietary blend of active ingredients applied to the affected muscle groups experiencing soreness
Other: Topical shower gel
Generic, widely available shower gel with no active ingredients applied to the affected muscle groups experiencing soreness
Other: Comparator
Topical shower gel containing a proprietary blend of active ingredients applied to the affected muscle groups experiencing soreness after a HYROX exercise session
Generic, widely available shower gel with no active ingredients applied to the affected muscle groups after a HYROX exercise session
Numerical Rating Scale (NRS) for muscle soreness
Adjusted between-group mean difference in 0-10 perceived muscle soreness Numerical Rating Scale (NRS) at 48 hours post-exercise (measured after the second product application / before the third application). Evaluated via ANCOVA model adjusting for immediate post-exercise/pre-application soreness, sex, and age. Scale ranges from 0 (no soreness at all) to 10 (worst possible soreness), where lower scores represent a better outcome.
Time frame: Baseline (pre-exercise), immediate post-exercise, 24 hours, 48 hours (primary endpoint), and 72 hours post-exercise.
User Application and Sensory Experience
Participant ratings of product dispensing ease, rinsing ease, texture, and skin feel. Evaluated on Numerical Rating Scale (NRS) 0-10 scales (0 = very difficult, 10 = very easy) and categorical checklists, where higher scores represent more favorable product experience.
Time frame: 24 hours post-exercise.
User Satisfaction and Enjoyment Descriptors (CATA Format)
Check-All-That-Apply (CATA) word frequency analysis evaluating emotional and sensory descriptors between independent treatment and comparator groups using Pearson's Chi-square or Fisher's exact tests. Analyzed as selection proportions (0 to 1) and risk differences, where higher selection frequency for positive attributes indicates a better outcome.
Time frame: 24 hours post-exercise.
Consumer Perception and Commercial Intent Scale
Participant ratings of overall satisfaction, likelihood of regular post-workout use, recommendation intent, and purchase intent. Evaluated on 0-10 NRS scales (0 = not at all, 10 = extremely), where higher scores represent higher satisfaction and commercial intent.
Time frame: 24 and 72 hours post-exercise.
Perceived Post-Exercise Recovery Rating
Single-item perceived recovery rating evaluated on a 0-10 NRS scale (0 = very poorly recovered/extremely tired, 10 = very well recovered/highly energetic), where higher scores represent superior perceived recovery.
Time frame: 24 hours, 48 hours, and 72 hours post-exercise.
Hooper Index Score for Recovery and Readiness
Multi-item questionnaire tracking perceived fatigue, sleep quality, muscle soreness, and stress on 0-10 NRS scales. Fatigue, soreness, and stress are scored from 0 (best) to 10 (worst), while sleep quality is scored from 0 (very poor) to 10 (excellent).
Time frame: Baseline (pre-exercise), 24 hours, 48 hours, and 72 hours post-exercise.
Plan to share: No — This is a commercial feasibility study; IPD will not be shared.
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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