Muscle Pain as a Regulator of Cycling Intensity: Effect of Caffeine Ingestion
Gonglach AR, Ade CJ, Bemben MG, Larson RD, Black CD
Medicine and science in sports and exercise · 25 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
- 2015-08-29 · Med Sci Sports Exerc · vol. 48 · número 2 · págs. 287–296
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 37 citas · más que el 90% de estudios similares · 2.7× el promedio de su campo
- Referencias
- 33 trabajos
- Acceso
- De pago
- Áreas de investigación
- Coffee research and impacts · Sports Performance and Training · Muscle metabolism and nutrition
- Palabras clave
- caffeine, myalgia, exercise intensity regulation, endurance performance, adenosine receptor antagonism, pain threshold, work output, time trial performance
- MeSH
- humans, caffeine, double-blind method, oxygen consumption, physical endurance, bicycling, adolescent, adult, male, young adult, performance-enhancing substances, myalgia
5 autores
- Alexander R. Gonglach🇺🇸University of Oklahoma
- Carl J. Ade🇺🇸University of Oklahoma
- Michael G. Bemben🇺🇸University of Oklahoma
- Rebecca D Larson🇺🇸University of Oklahoma
- Christopher D. Black🇺🇸University of Oklahoma
Resumen
El texto original del estudio, en el idioma en que se publicó.
Unlabelled
Caffeine ingestion improves endurance time trial performance. However, the ergogenic mechanism of action remains unresolved. One potential explanation for caffeine's performance-enhancing effect is an improvement in work for a given amount of muscle pain.
Purpose
To test this hypothesis, participants performed two studies in which they regulated exercise intensity based on feelings of muscle pain.
Methods
Thirteen young men were asked to regulate exercise intensity based on feelings of "moderate" muscle pain (a "3" on a 0-10 pain scale). After three familiarization trials, either caffeine (∼ 5 mg · kg(-1) body weight) or placebo were administered before a moderate pain trial. Nine caffeine "responders" were retested and ask to regulate their exercise intensity at a "strong" pain level (a "5" on a 0-10 pain scale). A caffeine (∼ 5 mg · kg(-1) body weight) or placebo was again ingested before exercise.
Results
Participants performed more work (P = 0.008) and covered more distance (P = 0.008) at a higher average power output (P = 0.009) and VO2 (P = 0.019), for an identical amount of "moderate" muscle pain in the caffeine condition. When exercising at a rating of a "5," caffeine did not increase total work, distance covered, or VO2 for an identical amount of "strong" pain in the nine caffeine "responders."
Conclusions
Our findings indicate caffeine increases work performed during exercise, eliciting a moderate amount of a pain. However, a threshold level of muscle pain may exist above which antagonism of adenosine receptors alone does not induce a hypoalgesic effect.
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