Cited by 11Muscle metabolism and nutritionExercise and Physiological ResponsesSports Performance and Training

Pre-exercise β-hydroxy-β-methylbutyrate free-acid supplementation improves work capacity recovery: A randomized, double-blinded, placebo-controlled study

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Correia, Ana Luiza Matias, de Lima, Filipe Dinato, Bottaro, Martim, Vieira, Amilton, da Fonseca, Andrew Correa, Lima, Ricardo Moreno·2018·Applied Physiology Nutrition and Metabolism

Abstract

The purpose of this study was to investigate the effects of a single-dose of β-hydroxy-β-methylbutyrate free acid (HMB-FA) supplementation on muscle recovery after a high-intensity exercise bout. Twenty-three trained young males were randomly assigned to receive either a single-dose supplementation of 3 g of HMB-FA (n = 12; age, 22.8 ± 3.0 years) or placebo (PLA; n = 11; age, 22.9 ± 3.1 years). A muscle damage protocol was applied 60 min after supplementation, and consisted of 7 sets of 20 drop jumps from a 60-cm box with 2-min rest intervals between sets. Muscle swelling, countermovement jump (CMJ), maximal voluntary isometric torque (MVIT), and work capacity (WC) were measured before, immediately after, and 24, 48, and 72 h after the exercise protocol. Muscle swelling, CMJ, and MVIT changed similarly in both groups after the exercise protocol (p < 0.001), but returned to pre-exercise levels after 24 h in both groups. WC decreased similarly in both groups after the exercise protocol (p < 0.01). For HMB-FA, WC returned to pre-exercise level 24 h after exercise protocol. However, for PLA, WC did not return to pre-exercise level even 72 h after the exercise protocol. In summary, a single-dose of HMB-FA supplementation improved WC recovery after a high-intensity exercise bout. However, HMB-FA did not affect the time-course of muscle swelling, MVIT, and CMJ recovery.

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Authors
Correia, A. L. M., de Lima, F. D., Bottaro, M., Vieira, A., da Fonseca, A. C., & Lima, R. M.
Affiliations
  • Universidade de Brasília (BR)
  • College of Health Sciences, University of Brasília, Brasília – DF, 70910-900, Brazil.
  • College of Physical Education, University of Brasília, Brasília – DF, 70910-900, Brazil.
Venue
Applied Physiology Nutrition and Metabolism
Published
2018-07
Volume
43
Issue
7
Pages
691-696
ISSN
  • 1715-5312 (ISSN-L)
  • 1715-5320
OpenAlex
W2785639341
Cited by
11
References
50
Citations by year
2026: 3 · 2024: 1 · 2023: 1 · 2022: 2 · 2020: 2 · 2018: 2
FWCI
0.55
Type
journal article
Language
en
Open access
Locations
  • Applied Physiology, Nutrition, and Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • TSpace (University of Toronto) (acceptedVersion, other-oa)
Funders
  • Universidade de Brasília
  • Pratt and Whitney Canada
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
Keywords
beta-hydroxy-beta-methylbutyrate, muscle damage, high-intensity exercise, drop jump, muscle swelling, countermovement jump, isometric torque
MeSH terms
Adolescent, Adult, Dose-Response Relationship, Drug, Double-Blind Method, Humans, Male, Muscular Diseases, Mental Recall, Valerates, Exercise, Muscle, Skeletal, Torque, Dietary Supplements, Resistance Training, Young Adult

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