Can Creatine Supplementation Interfere with Muscle Strength and Fatigue in Brazilian National Level Paralympic Powerlifting?
Soares Freitas Sampaio CR, Aidar FJ, Ferreira ARP, Santos JLD, Marçal AC, Matos DG, Souza RF, Moreira OC, Guerra I, Fernandes Filho J, Marcucci-Barbosa LS, Nunes-Silva A, Almeida-Neto PF, Cabral BGAT, Reis VM
Nutrients · 18 citas
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- Ensayo clínico controlado (clasificado por nuestro filtro de IA)
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- Financiación independiente
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Publicación
- Publicado
- 2020-08-19 · Nutrients · vol. 12 · número 9 · pág. 2492
- Editorial
- Multidisciplinary Digital Publishing Institute
- Citado
- 34 citas · más que el 89% de estudios similares · 2.4× el promedio de su campo
- Referencias
- 42 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Exercise and Physiological Responses
- Palabras clave
- Isometric exercise, Placebo, Medicine, Washout, Creatine, Physical therapy, Internal medicine
- MeSH
- muscle, skeletal, humans, creatine, single-blind method, muscle fatigue, isometric contraction, torque, weight lifting, dietary supplements, adult, brazil, male, muscle strength, young adult, sports nutritional physiological phenomena, para-athletes
15 autores
- Carlos Rodrigo Soares Freitas Sampaio🇧🇷Universidade Federal de Sergipe
- Felipe J. Aidar🇧🇷 · autor de correspondenciaUniversidade Federal de Sergipe
- Alexandre Reis Pires Ferreira🇧🇷Universidade de Brasília
- Jymmys Lopes dos Santos🇧🇷Universidade Federal de Sergipe
- Anderson Carlos Marçal🇧🇷Universidade Federal de Sergipe
- Dihogo Gama de Matos🇧🇷Universidade Federal de Sergipe
- Raphael Fabrício de Souza🇧🇷Universidade Federal de Sergipe
- Osvaldo Costa Moreira🇧🇷Universidade Federal de Viçosa
- Ialuska Guerra🇧🇷Instituto Federal de Educação, Ciência e Tecnologia do Ceará
- José Fernandes Filho
- Lucas Soares Marcucci-Barbosa🇧🇷Universidade Federal de Ouro Preto
- Albená Nunes-Silva🇧🇷Universidade Federal de Ouro Preto
- Paulo Francisco de Almeida‐Neto🇧🇷Universidade Federal do Rio Grande do Norte
- Breno Guilherme de Araújo Tinôco Cabral🇧🇷Universidade Federal do Rio Grande do Norte
- Víctor Machado Reis🇵🇹University of Trás-os-Montes and Alto Douro
Resumen
El texto original del estudio, en el idioma en que se publicó.
The aim of the present study was to analyze the effect of creatine (Cr) supplementation on peak torque (PT) and fatigue rate in Paralympic weightlifting athletes. Eight Paralympic powerlifting athletes participated in the study, with 25.40 ± 3.30 years and 70.30 ± 12.15 kg. The measurements of muscle strength, fatigue index (FI), peak torque (PT), force (kgf), force (N), rate of force development (RFD), and time to maximum isometric force (time) were determined by a Musclelab load cell. The study was performed in a single-blind manner, with subjects conducting the experiments first with placebo supplementation and then, following a 7-day washout period, beginning the same protocol with creatine supplementation for 7 days. This sequence was chosen because of the lengthy washout of creatine. Regarding the comparison between conditions, Cr supplementation did not show effects on the variables of muscle force, peak torque, RFD, and time to maximum isometric force (p > 0.05). However, when comparing the results of the moments with the use of Cr and placebo, a difference was observed for the FI after seven days (U3: 1.12; 95% CI: (0.03, 2.27); p = 0.02); therefore, the FI was higher for placebo. Creatine supplementation has a positive effect on the performance of Paralympic powerlifting athletes, reducing fatigue index, and keeping the force levels as well as PT.
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