Short-term creatine supplementation has no impact on upper-body anaerobic power in trained wrestlers
Aedma M, Timpmann S, Lätt E, Ööpik V
Journal of the International Society of Sports Nutrition · 18 citas
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (clasificado por nuestro filtro de IA)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación independiente
- Universidad u hospital
- Institutional research funding
- Organización sin fines de lucro
- Research grant of the Estonian Olympic Committee
Según 2 financiadores declarados y la declaración de financiación del texto completo.
Publicación
- Publicado
- 2015-10-20 · J Int Soc Sports Nutr · vol. 12 · número 1 · pág. 45
- Editorial
- Springer Science+Business Media
- Citado
- 33 citas · más que el 72% de estudios similares · 0.9× el promedio de su campo
- Referencias
- 61 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Cardiovascular and exercise physiology
- Palabras clave
- Sprint, Anaerobic exercise, Medicine, Repeated measures design, Analysis of variance, Placebo, Body fat percentage, Heart rate, Animal science, Creatine, Physical therapy, Upper body, Body mass index, Internal medicine, Physical fitness, Mathematics, Statistics, Blood pressure, Biology
- MeSH
- muscle, skeletal, humans, fatigue, creatine, lactates, body mass index, double-blind method, wrestling, dietary supplements, adult, male, athletic performance, physical exertion, torso, sports nutritional physiological phenomena
4 autores
- Martin Aedma🇪🇪University of Tartu
- Saima Timpmann🇪🇪University of Tartu
- Evelin Lätt🇪🇪University of Tartu
- Vahur Ööpik🇪🇪 · autor de correspondenciaUniversity of Tartu
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Creatine (CR) is considered an effective nutritional supplement having ergogenic effects, which appears more pronounced in upper-body compared to lower-body exercise. Nevertheless, results regarding the impact of CR loading on repeated high-intensity arm-cranking exercise are scarce and in some cases conflicting. Interestingly, few of the conducted studies have structured their research designs to mimic real world sporting events. Therefore, our purpose was to address the hypothesis that CR ingestion would increase anaerobic power output in consecutive upper-body intermittent sprint performance (UBISP) tests designed to simulate wrestling matches on a competition-day.
Methods
In a double-blind, placebo-controlled, parallel-group study, 20 trained wrestlers were assigned to either placebo or CR supplemented group (0.3 g ∙ kg(-1) of body mass per day). Four 6-min UBISP tests interspersed with 30-min recovery periods were performed before (trial 1) and after 5 days (trial 2) of supplementation. Each test consisted of six 15-s periods of arm-cranking at maximal executable cadence against resistance of 0.04 kg ∙ kg(-1) body mass interspersed with 40-s unloaded easy cranking periods and 5-s acceleration intervals (T1-T4). Mean power (MP), peak power (PP), fatigue index and heart rate parameters were measured during UBISP tests. Also, body weight and hydration status were assessed. Principle measures were statistical analysed with mixed-model ANOVAs.
Results
Mean individual CR consumption in the CR group was 24.8 ± 2.5 g ∙ d(-1). No significant (P > 0.05) differences occurred in body mass or hydration status indices between the groups or across trials. MP, PP and fatigue index responses were unaffected by supplementation; although, a significant reduction in MP and PP did occurred from T1 to T4 in both trial 1 and 2 (P 0.05).
Conclusion
These results suggest that 5-day CR supplementation has no impact on upper-body muscle anaerobic power output in consecutive UBISP anaerobic tests mimicking wrestling matches on a competition day.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial (CC BY).
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