The goal of this clinical trial (randomised crossover study) is to learn if a multi-component sleep and exercise recovery supplement can improve sleep quality and enhance recovery following exercise in healthy, recreationally active adults aged 18-40. The main questions it aims to answer are: 1. Does the supplement reduce delayed onset muscle soreness (DOMS) following an intense exercise protocol? 2. Does the supplement improve sleep quality? Researchers will compare the supplement to a placebo (a look-alike tablet with no active ingredients) to see if the supplement improves exercise recovery and sleep quality. In this crossover design, all participants will receive both the supplement and the placebo in separate 2-week periods, with a 2-week washout period in between. Participants will: * Take the supplement during one 2-week period and the placebo during another (order randomised), 30 minutes before bed each day * Complete an exercise protocol involving repeated leg extensions designed to induce muscle fatigue * Attend six laboratory visits, including baseline testing and follow-up assessments at 24 and 48 hours post-exercise * Complete daily sleep questionnaires during each supplementation period * Record food intake prior to exercise trials and replicate it for consistency * Perform muscle soreness assessments and single-leg jump tests before and after exercise, and during recovery
Age range
18 Years – 40 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Changes in total work done
Timeframe: Following each 2-week supplementation period of either supplement
Changes in work done (Flexion)
Timeframe: Following each 2-week supplementation period of either supplement
Changes in work done (Extension)
Timeframe: Following each 2-week supplementation period of either supplement
Changes in Single Leg jump height
Timeframe: Before and Immediately After Muscle Damaging Protocol at the End of Each 2-Week Supplementation Period
Changes in Single Leg Jump hang time
Timeframe: Before and Immediately After Muscle Damaging Protocol at the End of Each 2-Week Supplementation Period