Caffeine ingestion after rapid weight loss in judo athletes reduces perceived effort and increases plasma lactate concentration without improving performance
Lopes-Silva JP, Felippe LJ, Silva-Cavalcante MD, Bertuzzi R, Lima-Silva AE
Nutrients · 29 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
- Gobierno
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Según 1 financiador declarado y la declaración de financiación del texto completo.
Publicación
- Publicado
- 2014-07-22 · Nutrients · vol. 6 · número 7 · págs. 2931–2945
- Editorial
- Multidisciplinary Digital Publishing Institute
- Citado
- 43 citas · más que el 84% de estudios similares · 1.9× el promedio de su campo
- Referencias
- 45 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Coffee research and impacts · Martial Arts: Techniques, Psychology, and Education · Sports Performance and Training
- Palabras clave
- caffeine ingestion, rapid weight loss, judo athletes, perceived exertion, plasma lactate, weight cutting, exercise performance
- MeSH
- adipose tissue, humans, body weight, weight loss, lactic acid, caffeine, cross-over studies, double-blind method, reproducibility of results, body composition, heart rate, martial arts, adult, athletic performance, young adult, athletes
5 autores
- João Paulo Lopes‐Silva🇧🇷Universidade Federal de Pernambuco
- Leandro C. Felippe🇧🇷Universidade Federal de Pernambuco
- Marcos David Silva‐Cavalcante🇧🇷Universidade de São Paulo; Universidade Federal de Pernambuco
- Rômulo Bertuzzi🇧🇷Universidade de São Paulo; Universidade Federal de Pernambuco
- Adriano Eduardo Lima‐Silva🇧🇷 · autor de correspondenciaUniversidade Federal de Pernambuco
Resumen
El texto original del estudio, en el idioma en que se publicó.
The objective of this study was to examine the effect of caffeine on judo performance, perceived exertion, and plasma lactate response when ingested during recovery from a 5-day weight loss period. Six judokas performed two cycles of a 5-day rapid weight loss procedure to reduce their body weight by ~5%. After weigh-in, subjects re-fed and rehydrated over a 4-h recovery period. In the third hour of this "loading period", subjects ingested a capsule containing either caffeine (6 mg·kg-1) or placebo. One hour later, participants performed three bouts of a judo fitness test with 5-min recovery periods. Perceived exertion and plasma lactate were measured before and immediately after each test bout. Body weight was reduced in both caffeine and placebo conditions after the weight loss period (-3.9% ± 1.6% and -4.0% ± 2.3% from control, respectively, p < 0.05). At three hours after weigh-in, body weight had increased with both treatments but remained below the control (-3.0% ± 1.3% and -2.7% ± 2.2%). There were no significant differences in the number of throws between the control, caffeine or placebo groups. However, plasma lactate was systemically higher and perceived exertion lower in the subjects who ingested caffeine compared to either the control or placebo subjects (p < 0.05). In conclusion, caffeine did not improve performance during the judo fitness test after a 5-day weight loss period, but reduced perceived exertion and increased plasma lactate.
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