Evidence map›Paper›PMID 39739679›Full record

Trial reportPloS one2024

Dileucine ingestion, but not leucine, increases lower body strength and performance following resistance training: A double-blind, randomized, placebo-controlled trial.

Anthony M Hagele, Joesi M Krieger, Connor J Gaige, Kevin F Holley, Kristen N Gross, Joshua M Iannotti, Leah E Allen, Paige J Sutton, Logan S Orr, Petey W Mumford and 3 more

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06121869 (A Pilot Study to Examine Changes in Resistance Training Adaptations After Leucine and Dileucine Ingestion), which is not on this map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–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.

NCT06121869 nacompletednot on this map

A Pilot Study to Examine Changes in Resistance Training Adaptations After Leucine and Dileucine Ingestion

TypeinterventionalSponsorLindenwood UniversityRan2021 to 2023Enrolled34ConditionsHypertrophy, Strength Training Adaptations, Weight-Bearing Strengthening ProgramArmsPlacebo, Leucine, Dileucine
3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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

13 authors.

Anthony M HageleExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.ORCID 0000-0002-5575-3670
Joesi M KriegerExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.
Connor J GaigeExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.ORCID 0009-0008-5065-8886
Kevin F HolleyExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.
Kristen N GrossExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.
Joshua M IannottiExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.
Leah E AllenExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.ORCID 0009-0003-5041-4367
Paige J SuttonExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.
Logan S OrrExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.
Petey W MumfordExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.
Martin PurpuraIncrenovo, LLC, Whitefish Bay, Wisconsin, United States of America.
Ralf JagerIncrenovo, LLC, Whitefish Bay, Wisconsin, United States of America.ORCID 0000-0002-7345-9635
Chad M KerksickExercise and Performance Nutrition Laboratory, Kinesiology Department, College of Science, Technology and Health, Lindenwood University, St. Charles, Missouri, United States of America.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe essential amino acid leucine (LEU) plays a crucial role in promoting resistance-training adaptations. Dileucine (DILEU), a LEU-LEU dipeptide, increases MPS rates, however its impact on resistance training outcomes remains unexplored. This study assessed the effects of DILEU supplementation on resistance training adaptations.

methodsUsing a randomized, double-blind, placebo-controlled approach, 34 resistance-trained males (age: 28.3 ± 5.9 years) consumed 2 grams of either DILEU monohydrate (RAMPS™, Ingenious Ingredients, L.P.), LEU, or placebo (PLA) while following a 4-day per week resistance training program for 10 weeks. Changes in body composition, 1-repetition maximum (1RM) and repetitions to failure (RTF) for leg press (LP) and bench press (BP), anaerobic capacity, countermovement jump (CMJ), and maximal voluntary contraction (MVC) were assessed after 0 and 10 weeks.

resultsSignificant main effects for time (p < 0.001) were realized for LP and BP 1RM and RTF. A significant group × time interaction was identified for changes in LP 1RM (p = 0.02) and LP RTF (p = 0.03). Greater increases in LP 1RM were observed in DILEU compared to PLA (p = 0.02; 95% CI: 5.8, 73.2 kg), and greater increases in LP RTF in DILEU compared to LEU (p = 0.04; 95% CI: 0.58, 20.3 reps). No significant differences were found in other measures.

conclusionsDILEU supplementation at 2 grams daily enhanced lower body strength and muscular endurance in resistance-trained males more effectively than LEU or PLA. These findings suggest DILEU as a potentially effective supplement for improving adaptations to resistance training. NCT06121869 retrospectively registered.

Indexed as

LeucineMuscle StrengthResistance TrainingAdultBody CompositionDietary SupplementsDouble-Blind MethodHumansMaleMuscle, SkeletalYoung AdultLeucine

Identifiers

PMID39739679
PMCPMC11687731

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.