Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

UCLA Magnesium Formulation Athlete Study (Mg-Form)

5 juni 2026 bijgewerkt door: Jeremy Swisher, MD, University of California, Los Angeles

Effects of Magnesium Glycinate and Magnesium L-Threonate on Sleep, Recovery, and Performance in Collegiate Athletes

This randomized, double-blind, placebo-controlled trial will compare magnesium glycinate, magnesium L-threonate, and placebo in UCLA varsity athletes. Participants will complete a baseline monitoring period followed by 4 weeks of blinded nightly supplementation. WHOOP or study-approved wearable data will be used to evaluate sleep efficiency, total sleep time, sleep consistency, heart rate variability, resting heart rate, and recovery metrics. Baseline and final testing will assess selected reaction and physical performance outcomes. The primary outcome is change in WHOOP-derived sleep efficiency from baseline week to final treatment week.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Magnesium is involved in neuromuscular signaling, cellular energy metabolism, autonomic regulation, and sleep-related physiology. Competitive athletes often experience sleep restriction, training stress, travel, soreness, and recovery demands. Magnesium glycinate and magnesium L-threonate are commonly used athlete-facing magnesium formulations, but they are not interchangeable. Glycinate is commonly positioned as a well-tolerated sleep-oriented formulation, whereas L-threonate is of interest because of prior signals related to sleep, cognition, reaction performance, and central nervous system magnesium biology. This single-site UCLA study will enroll adult varsity athletes aged 18 to 35 years. Participants will complete screening, informed consent, baseline assessments, wearable monitoring, a baseline monitoring period, randomization in a 1:1:1 ratio, 4 weeks of blinded nightly capsules, brief daily REDCap morning surveys, weekly adherence and safety check-ins, and final performance-adjacent testing. The primary outcome is change in average WHOOP-derived sleep efficiency from baseline week to final treatment week. Prespecified primary contrasts will compare magnesium glycinate versus placebo and magnesium L-threonate versus placebo. Total sleep time, sleep consistency, resting heart rate, heart rate variability, WHOOP Recovery Score, reaction-time performance, grip strength, countermovement jump height, adherence, tolerability, and adverse events will be analyzed as secondary or exploratory outcomes according to the final statistical analysis plan. The magnesium glycinate versus magnesium L-threonate contrast will be treated as exploratory unless the final statistical analysis plan preserves alpha for that comparison.

Studietype

Ingrijpend

Inschrijving (Geschat)

150

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Contact Back-up

Studie Locaties

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen

Accepteert gezonde vrijwilligers

Ja

Beschrijving

Inclusion Criteria:

  • Age 18 to 35 years.
  • Current UCLA varsity athlete.
  • Actively training or competing during the study period.
  • Willing to wear WHOOP or a study-approved wearable device continuously during baseline and treatment periods if wearable data are used.
  • Willing to take assigned study capsules nightly for 28 days.
  • Willing to complete brief daily REDCap surveys and weekly adherence/safety check-ins.
  • Able to provide informed consent and comply with study procedures.

Exclusion Criteria:

  • Current magnesium supplementation without completion of an appropriate washout before baseline.
  • Current investigational drug or investigational supplement use.
  • Current use of prescription or over-the-counter sleep medications unless reviewed and permitted by the study clinician.
  • Diagnosed sleep disorder that, in the investigator's judgment, would confound outcomes or increase risk.
  • Significant kidney disease or another medical condition that may increase risk with magnesium supplementation.
  • Known intolerance or allergy to magnesium glycinate, magnesium L-threonate, placebo, or inactive study ingredients.
  • Use of medications with clinically relevant magnesium interactions unless reviewed and permitted by the study clinician.
  • Any other condition that, in the investigator's judgment, would make participation unsafe, compromise voluntary consent, or prevent valid outcome assessment.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Ander
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verviervoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Magnesium Glycinate
Participants randomized to this arm will take blinded magnesium glycinate capsules nightly for 4 weeks. The current planning dose is approximately 240 mg elemental magnesium nightly, with final capsule count and label language based on the selected blinded formulation.
Voedingssupplement: Magnesium glycinate
Blinded oral magnesium glycinate capsules taken nightly for 28 days.
Experimenteel: Magnesium L-Threonate
Participants randomized to this arm will take blinded magnesium L-threonate capsules nightly for 4 weeks. The current planning target is approximately 2 g/day total magnesium L-threonate, with elemental magnesium content, capsule count, and label language confirmed before activation.
Voedingssupplement: Magnesium L-threonate
Blinded oral magnesium L-threonate capsules taken nightly for 28 days.
Placebo-vergelijker: Placebo
Participants randomized to this arm will take matching placebo capsules nightly for 4 weeks on the same blinded schedule.
Ander: Placebo
Matching placebo capsules taken nightly for 28 days.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in WHOOP-derived sleep efficiency percentage from baseline week to final treatment week
Tijdsspanne: Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Average nightly WHOOP-derived sleep efficiency, expressed as a percentage, will be calculated for the baseline week and final treatment week. A valid week requires at least 5 usable nights in the 7-day window. The outcome is final-treatment-week average minus baseline-week average; higher values indicate improved sleep efficiency.
Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in BlazePod RIW Challenge reaction time in milliseconds from baseline to final visit
Tijdsspanne: Baseline to final visit, approximately 5 weeks
Reaction performance will be measured using the prespecified BlazePod RIW Challenge protocol. The outcome is change in reaction time in milliseconds from baseline to final visit. Lower reaction time indicates better performance.
Baseline to final visit, approximately 5 weeks
Change in BlazePod Speed Tap reaction time in milliseconds from baseline to final visit
Tijdsspanne: Baseline to final visit, approximately 5 weeks
Reaction performance will be measured using the prespecified BlazePod Speed Tap protocol. The outcome is change in reaction time in milliseconds from baseline to final visit. Lower reaction time indicates better performance.
Baseline to final visit, approximately 5 weeks
Change in WHOOP-derived sleep consistency score from baseline week to final treatment week
Tijdsspanne: Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
WHOOP-derived sleep consistency score, or an equivalent prespecified wearable-derived sleep timing regularity metric, will be summarized for the baseline week and final treatment week. The outcome is final-treatment-week average minus baseline-week average.
Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Change in WHOOP-derived total sleep time in minutes from baseline week to final treatment week
Tijdsspanne: Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Average nightly total sleep time captured by WHOOP, expressed in minutes, will be calculated for the baseline week and final treatment week. The outcome is final-treatment-week average minus baseline-week average.
Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Change in WHOOP-derived resting heart rate in beats per minute from baseline week to final treatment week
Tijdsspanne: Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Nightly resting heart rate captured by WHOOP, expressed in beats per minute, will be summarized as weekly averages for the baseline week and final treatment week. The outcome is final-treatment-week average minus baseline-week average.
Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Change in WHOOP-derived heart rate variability in milliseconds from baseline week to final treatment week
Tijdsspanne: Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Nightly heart rate variability captured by WHOOP, expressed in milliseconds, will be summarized as weekly averages for the baseline week and final treatment week. The outcome is final-treatment-week average minus baseline-week average.
Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Change in WHOOP Recovery Score from baseline week to final treatment week
Tijdsspanne: Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
WHOOP Recovery Score, reported on a 0 to 100 scale where higher scores indicate better recovery, will be summarized as weekly averages for the baseline week and final treatment week. The outcome is final-treatment-week average minus baseline-week average.
Baseline week to final treatment week, approximately 5 weeks total including baseline monitoring
Change in VALD dynamometer bilateral average handgrip strength from baseline to final visit
Tijdsspanne: Baseline to final visit, approximately 5 weeks
Bilateral average handgrip strength will be measured with the prespecified VALD handgrip dynamometer protocol. The outcome is final-visit bilateral average handgrip strength minus baseline bilateral average handgrip strength.
Baseline to final visit, approximately 5 weeks
Change in VALD force plate countermovement jump height from baseline to final visit
Tijdsspanne: Baseline to final visit, approximately 5 weeks
Countermovement jump height will be measured with the prespecified VALD force plate protocol. The outcome is final-visit jump height minus baseline jump height.
Baseline to final visit, approximately 5 weeks
Number of participants with adverse events and supplement tolerability concerns
Tijdsspanne: From first dose through final visit, approximately 4 weeks
The number of participants with adverse events, tolerability concerns, dose interruptions, and study-product discontinuations will be summarized by study arm. Events of interest include gastrointestinal symptoms, sedation, dizziness, headache, allergic reaction, skin irritation from wearable use, and study-product discontinuation.
From first dose through final visit, approximately 4 weeks

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

University of California, Los Angeles

Onderzoekers

  • Hoofdonderzoeker: Jeremy Swisher, MD, University of California, Los Angeles
  • Studie directeur: Joshua Goldman, MD, University of California, Los Angeles

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

1 juli 2026

Primaire voltooiing (Geschat)

1 mei 2027

Studie voltooiing (Geschat)

1 juni 2027

Studieregistratiedata

Eerst ingediend

26 mei 2026

Eerst ingediend dat voldeed aan de QC-criteria

5 juni 2026

Eerst geplaatst (Werkelijk)

11 juni 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

11 juni 2026

Laatste update ingediend die voldeed aan QC-criteria

5 juni 2026

Laatst geverifieerd

1 juni 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • IRB-26-1185

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Beschrijving IPD-plan

No individual participant data sharing is planned because the study involves a relatively small cohort of collegiate athletes and individual-level sleep, recovery, performance, and sport-related data may create re-identification risk. Aggregate results may be disseminated through presentations, manuscripts, and ClinicalTrials.gov summaries as applicable.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Abonneren