topicHmb Muscle Strength Randomized Trial
claim1 2 3 4 5 Older age is associated with declines in skeletal muscle mass, strength and function, termed sarcopenia [].
evidence level2
citationSmith Kenneth (2026)
sourceThe Effect of β-Hydroxy-β-Methyl Butyrate (HMB) upon Acute Fed-State Muscle Protein Turnover in Older Men and Women: A Randomized Double-Blind Controlled Crossover Clinical Trial
topicHmb Muscle Strength Randomized Trial
claimInvolving motor unit remodelling and muscle fibre atrophy as a result of lifestyle, genetic and disease interactions, sarcopenia is a major hurdle to improving health-span against the backdrop of increasing lifespan.
evidence level2
citationSmith Kenneth (2026)
sourceThe Effect of β-Hydroxy-β-Methyl Butyrate (HMB) upon Acute Fed-State Muscle Protein Turnover in Older Men and Women: A Randomized Double-Blind Controlled Crossover Clinical Trial
topicHmb Muscle Strength Randomized Trial
claimWhile the underlying mechanisms leading to anabolic resistance remain ill-defined, impaired digestion/absorption [], increased AA splanchnic uptake [], muscle microvascular dysfunction [], and myocellular cell signalling deficits [] have all been reported.
evidence level2
citationSmith Kenneth (2026)
sourceThe Effect of β-Hydroxy-β-Methyl Butyrate (HMB) upon Acute Fed-State Muscle Protein Turnover in Older Men and Women: A Randomized Double-Blind Controlled Crossover Clinical Trial
topicHmb Muscle Strength Randomized Trial
claimSuch redox dysregulation has been associated with lower strength, impaired endurance, and reduced adaptive responses to exercise (Powers et al.).
evidence level2
citationRamos-Hernández Rafael (2026)
sourceCreatine plus β-Hydroxy-β-Methylbutyrate supplementation is associated with preserved glutathione redox-balance and redox–function associations in older adults: a secondary analysis of a randomized crossover trial
topicHmb Muscle Strength Randomized Trial
claim2024 2019 2020a b 2025 A growing body of evidence indicates that HMB may influence oxidative metabolism and mitochondrial function, with meta-analytic data showing improvements in endurance performance and aerobic capacity (Fernández-Landa et al.).
evidence level2
citationRamos-Hernández Rafael (2026)
sourceCreatine plus β-Hydroxy-β-Methylbutyrate supplementation is associated with preserved glutathione redox-balance and redox–function associations in older adults: a secondary analysis of a randomized crossover trial
topicHmb Muscle Strength Randomized Trial
claimA secondary exploratory objective was to assess whether changes in redox indices were associated with changes in muscle strength and functional performance, whose absolute values were previously published for this cohort.
evidence level2
citationRamos-Hernández Rafael (2026)
sourceCreatine plus β-Hydroxy-β-Methylbutyrate supplementation is associated with preserved glutathione redox-balance and redox–function associations in older adults: a secondary analysis of a randomized crossover trial
topicHmb Muscle Strength Randomized Trial
claim2019 2016 Aging is characterized by progressive declines in skeletal muscle quality and functional capacity that diminish mobility and quality of life (Cruz-Jentoft et al.).
evidence level2
citationRamos-Hernández Rafael (2026)
sourceCreatine plus β-Hydroxy-β-Methylbutyrate supplementation is associated with preserved glutathione redox-balance and redox–function associations in older adults: a secondary analysis of a randomized crossover trial