Muscle creatine levels and sprint performance in young adult vegans and vegetarians after 7 days of creatine monohydrate supplementation
Bonne TC, Arthemalle V, Doherty CS, Andersen AB, Bejder J, Ehlers T, Holm-Sørensen H, Nordsborg NB
Physiological reports · 2 citas
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación independiente
Según la declaración de financiación del texto completo.
Publicación
- Publicado
- 2025-09-01 · Physiol Rep · vol. 13 · número 17 · pág. e70539
- Editorial
- Wiley
- Citado
- 1 cita · más que el 63% de estudios similares · 0.5× el promedio de su campo
- Referencias
- 40 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Muscle metabolism and nutrition · Pharmacology and Obesity Treatment · Exercise and Physiological Responses
- Palabras clave
- Creatine, Creatine Monohydrate, Sprint, Phosphocreatine, Placebo, Athletes, Exercise physiology
- MeSH
- muscle, skeletal, humans, creatine, double-blind method, running, dietary supplements, adult, female, male, athletic performance, young adult, vegetarians, vegans
8 autores
- Thomas Christian Bonne🇩🇰 · autor de correspondenciaUniversity of Copenhagen
- Valentina Arthemalle🇩🇰University of Copenhagen
- Colin S. Doherty🇦🇺Edith Cowan University
- Andreas Breenfeldt Andersen🇩🇰Aarhus University
- Jacob Bejder🇩🇰University of Copenhagen
- Thomas Svare Ehlers🇩🇰Herlev Hospital; Gentofte Hospital
- Henrik Sørensen🇩🇰University of Copenhagen
- Nikolai Baastrup Nordsborg🇩🇰University of Copenhagen
Resumen
El texto original del estudio, en el idioma en que se publicó.
Athletes use creatine monohydrate (CM) to enhance high-intensity exercise performance by increasing creatine phosphate availability. While CM supplementation is known to raise muscle creatine levels in vegans and vegetarians, its impact on exercise performance remains uncertain. We examined the effects of CM supplementation on muscle creatine content and exercise performance in vegans and vegetarians. In a randomized, double-blind placebo-controlled design, 15 healthy vegans and vegetarians consumed CM (0.3 g/kg/day, n = 7) or placebo (PLA, 0.3 g maltodextrin/kg/day, n = 8) four times a day for 7 days. Before and after supplementation, repeated sprint capacity was determined. Body mass and fat-free mass (FFM) were assessed by dual-energy x-ray absorptiometry. The CM group increased body mass (1.56 ± 0.57 kg, p < 0.01) and FFM (1.15 ± 0.94 kg, p < 0.05), while the PLA group showed no changes. In the CM group, muscle creatine (Cr) and total muscle creatine (TCr) increased by 18.8 ± 13.1 mmol/kg (p < 0.05) and 30.8 ± 21.2 mmol/kg (p < 0.01), respectively. The PLA group showed no changes in Cr and TCr (-4.6 ± 13.1 mmol/kg and 2.9 ± 11.6 mmol/kg, respectively). Phosphocreatine levels remained consistent within and between groups. There were no observed changes in peak and mean power output during repeated sprints. A seven-day CM supplementation in healthy vegans and vegetarians increased Cr and TCr whereas Phosphocreatine, peak and mean power output during repeated sprints was unchanged.
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