Evidence map›Paper›PMID 39010683›Full record

Trial reportJournal of the International Society of Sports Nutrition2024

Kavalactones support motivation to move during intensive training in males preparing for military special operations forces.

Sheena Y Smith, Carlos F Aylwin, Tyler F Daniels, Jennifer L Greer, Laura J Kunces, Loukia Lili, Stephen M Phipps, Caleb M Schmidt, Julian C Schmidt, Michael A Schmidt

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of the International Society of Sports Nutrition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05381025 (The Effect of Oral Kavalactones on Sleep and Cortisol in a Cohort of Healthy Adult Males Preparing for Military Special Forces Training), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT05381025 nacompletednot on this map

The Effect of Oral Kavalactones on Sleep and Cortisol in a Cohort of Healthy Adult Males Preparing for Military Special Forces Training

TypeinterventionalSponsorThorne HealthTech, IncRan2022 to 2022Enrolled15ConditionsSleepArmsKava (Piper methysticum) extract
3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Sheena Y SmithResearch and Development, Thorne Research, Inc., Summerville, SC, USA.
Carlos F AylwinResearch and Development, Thorne Research, Inc., Summerville, SC, USA.
Tyler F DanielsResearch and Development, Thorne Research, Inc., Summerville, SC, USA.
Jennifer L GreerResearch and Development, Thorne Research, Inc., Summerville, SC, USA.
Laura J KuncesResearch and Development, Thorne Research, Inc., Summerville, SC, USA.
Loukia LiliResearch and Development, Thorne Research, Inc., Summerville, SC, USA.
Stephen M PhippsResearch and Development, Thorne Research, Inc., Summerville, SC, USA.
Caleb M SchmidtHuman Performance Lab, Sovaris Aerospace, Boulder, CO, USA.
Julian C SchmidtHuman Performance Lab, Sovaris Aerospace, Boulder, CO, USA.
Michael A SchmidtHuman Performance Lab, Sovaris Aerospace, Boulder, CO, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMilitary special operators, elite athletes, and others requiring uninterrupted optimal performance currently lack options for sleep and mood support without performance-inhibiting effects. Kavalactones, derived from the root of the kava plant (

methodsIn this placebo-controlled, crossover study (NCT05381025), we investigated the effects of 2 weeks of kavalactones use on cortisol (diurnal salivary), sleep (RSQ-W; Restorative Sleep Questionnaire, Weekly), mood (DASS-21; Depression Anxiety Stress Scale-21), and motivation state to expend (Move) or conserve (Rest) energy (CRAVE; Cravings for Rest and Volitional Energy Expenditure, Right Now) in a cohort of 15 healthy, physically fit young males engaged in a rigorous, two-a-day preparation class for special operations forces qualification.

resultsCortisol, sleep, and mood were within normal, healthy parameters in this cohort at baseline. This remained unchanged with kavalactones use with no significant findings of clinical interest. However, a statistically similar, positive slope for within-group Move scores was seen in both groups during kavalactones loading (first group Move slope 2.25, second group Move slope 3.29,

conclusionsWe report a novel finding that kavalactones may support performance by maintaining or rescuing the desire to expend energy in the context of significant physical and mental strain in well-conditioned individuals, even in a context of already normal cortisol, sleep, and mood.

Indexed as

AffectCross-Over StudiesHydrocortisoneMilitary PersonnelMotivationSleepAdultDouble-Blind MethodEnergy MetabolismHumansMaleSalivaYoung AdultHydrocortisoneCortisoldietary supplementexercisekavamotivation statePiper methysticum

Identifiers

PMID39010683
PMCPMC11254123

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.