Caffeine increases performance in cross-country double-poling time trial exercise
Stadheim HK, Kvamme B, Olsen R, Drevon CA, Ivy JL, Jensen J
Medicine and science in sports and exercise · 46 citas
Etiquetas de revisión
Financiación no declaradaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
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 no declarada
Publicación
- Publicado
- 2013-04-16 · Med Sci Sports Exerc · vol. 45 · número 11 · págs. 2175–2183
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 58 citas · más que el 93% de estudios similares · 3.7× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 42 trabajos
- Acceso
- Acceso abierto (copia en repositorio) · OTHER-OA
- Áreas de investigación
- Coffee research and impacts · Sports Performance and Training · Thermoregulation and physiological responses
- Palabras clave
- caffeine, double poling, cross-country skiing, endurance performance, time trial, perceived exertion, heart rate, blood lactate, motor unit recruitment
- MeSH
- arm, muscle, skeletal, humans, epinephrine, norepinephrine, lactic acid, caffeine, blood glucose, central nervous system stimulants, cross-over studies, double-blind method, oxygen consumption, heart rate, time factors, skiing, adult, male, athletic performance, physical exertion, young adult
6 autores
- Hans Kristian Stadheim🇳🇴🇺🇸National Institute of Occupational Health; University of Oslo; Norwegian School of Sport Sciences; The University of Texas at Austin
- Bent Kvamme🇳🇴Norwegian School of Sport Sciences
- Raymond Olsen🇳🇴National Institute of Occupational Health
- Christian Andre Drevon🇳🇴University of Oslo
- John L. Ivy🇺🇸The University of Texas at Austin
- Jørgen Jensen🇳🇴Norwegian School of Sport Sciences
Resumen
El texto original del estudio, en el idioma en que se publicó.
Purpose
Caffeine (CAF) improves performance in both short- and long-duration running and cycling where performance relies on power output and endurance capacity of leg muscles. No studies have so far tested the effects of CAF while using the double-poling (DP) technique in cross-country skiing. When using the DP technique, arm muscles provide the speed-generating force and therefore play an important role in performance outcome. The metabolism of arm muscles differs from that of leg muscles. Thus, results from studies on leg muscles and CAF may not be directly applicable to exercises while using the DP technique in cross-country skiing. The purpose of our study was therefore to investigate the effects of CAF on exercise performance in DP.
Method
Ten highly trained male cross-country skiers (V·O 2max running, 69.3 ± 1.0 mL · kg · min(-1)) performed a placebo (PLA) and CAF trial using a randomized, double-blind, crossover design. Performance was assessed by measuring the time to complete an 8-km cross-country DP performance test (C-PT). CAF (6 mg · kg(-1)) or PLA was ingested 75 min before the C-PT.
Results
CAF ingestion reduced the time to complete the 8-km C-PT from 34:26 ± 1:25 to 33:01 ± 1:24 min (P < 0.05). The subjects maintained higher speed and HR throughout the C-PT, and lactate was higher immediately after the C-PT with CAF exposure compared with PLA. Subjects reported lower RPE at submaximal intensities during CAF compared with PLA, although HR was similar.
Conclusion
CAF intake enhances endurance performance in an 8-km C-PT, where arm muscles limit performance. CAF ingestion allowed the participants to exercise with a higher HR and work intensity possibly by reducing perception of effort or facilitating motor unit recruitment.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial.
Confianza de la comunidad
Cargando…
¿Cuánto confías en los hallazgos de este estudio?
Comentarios
¿Algo está mal aquí?
Señala este estudio si su información, etiquetas o financiación parecen incorrectas. Un editor revisa cada señalamiento.
Información educativa sobre investigación publicada. No es consejo médico ni una recomendación para empezar o dejar nada.