2026-04-29T20:44:06Zhttps://riubu.ubu.es/oai/request
oai:riubu.ubu.es:10259/112112026-02-05T08:20:00Zcom_10259_11209com_10259_5086com_10259_2604col_10259_11210
Repositorio Institucional de la Universidad de Burgos author Ramos-Hernández, Rafael author Miguel Ortega, Alvaro author Martínez Ferrán, María author Fernández-Lázaro, Diego author Busto Vázquez, Natalia author Mielgo Ayuso, Juan 2026-01-13T12:57:16Z 2026-01-13T12:57:16Z 2025-10 2509-2715 https://hdl.handle.net/10259/11211 10.1007/s11357-025-01889-y 2509-2723 Sarcopenia is a major contributor to frailty and functional decline among older adults. Combining exercise with nutritional strategies such as creatine monohydrate (CRE) and β-hydroxy-β-methylbutyrate (HMB) supplementation may help to preserve strength and independence. To evaluate the effects of 6-week CRE + HMB supplementation combined with an integral physical conditioning (IPC) program on functional strength and body composition in physically active older adults. In a randomized, double-blind, placebo-controlled crossover trial, 30 older adults (20 men, 10 women; ≥ 60 years) completed two 6-week intervention periods (CRE + HMB or placebo) separated by a 3-week washout. The IPC program performed in both conditions consisted of four supervised weekly sessions combining strength, power, multicomponent circuits, high-intensity interval and moderate intensity continuous training), performed at 40–100% training heart rate (THR) and 20–90% one-repetition maximum (1RM) and structured as warm-up, main part and cooldown. Functional strength and body composition (bioelectrical impedance analysis) were assessed pre- and post-intervention, respectively. Significant time × group interactions were observed for fat mass, fat-free mass, total muscle mass, skeletal muscle mass, appendicular skeletal muscle mass, muscle mass index, skeletal muscle index and ALM/BMI (all p < 0.05). The CRE + HMB group showed reductions in fat mass and body fat percentage, with slight numerical increases in muscle parameters, whereas the placebo group exhibited opposite trends. However, within-group changes were not statistically significant. In contrast, CRE + HMB significantly improved multiple functional strength outcomes, including leg/back strength, arm flexion strength, upper-body endurance (dumbbell flexion, push-ups, isometric hold) and core endurance (crunches). Regression analyses suggested that these improvements were largely independent of changes in muscle mass, supporting a potential neuromuscular mechanism. Six weeks of CRE + HMB supplementation combined with IPC enhanced functional strength and endurance in active older adults, largely independent of changes in muscle mass. This combined approach represents a promising strategy for preserving functional capacity and promoting healthy ageing. eng Atribución 4.0 Internacional Creatine monohydrate β-Hydroxy-βmethylbutyrate Functional strength Sarcopenia Older adults Multicomponent exercise Muscle quality Neuromuscular adaptations Healthy aging Body composition Combined creatine and HMB co-supplementation improves functional strength independent of muscle mass in physically active older adults: a randomized crossover trial info:eu-repo/semantics/article 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 URL https://riubu.ubu.es/bitstream/10259/11211/1/Ramos-GeroScience_2025.pdf File MD5 635ef32978325533191352e8f481ab85 730984 application/pdf Ramos-GeroScience_2025.pdf