Caffeine and Physiological Responses to Submaximal Exercise: A Meta-Analysis
Glaister M, Gissane C
International journal of sports physiology and performance · 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
- Metaanálisis (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2017-09-05 · Int J Sports Physiol Perform · vol. 13 · número 4 · págs. 402–411
- Editorial
- Human Kinetics
- Citado
- 82 citas · más que el 82% de estudios similares · 1.6× el promedio de su campo
- Referencias
- 65 trabajos
- Acceso
- De pago
- Áreas de investigación
- Coffee research and impacts · Muscle metabolism and nutrition · Cardiovascular and exercise physiology
- Palabras clave
- Respiratory exchange ratio, Caffeine, Heart rate, Time trial, Crossover study, VO2 max, Medicine, Placebo, Confidence interval, Incremental exercise, Exercise physiology, Meta-analysis, Internal medicine, Blood lactate, Animal science, Cardiology, Physical therapy, Blood pressure
- MeSH
- humans, lactic acid, caffeine, blood glucose, pulmonary gas exchange, exercise, perception, oxygen consumption, heart rate, adult, physical exertion
2 autores
- Mark Glaister🇬🇧 · autor de correspondenciaSt Mary's University College
- Conor Gissane🇬🇧St Mary's University College
Resumen
El texto original del estudio, en el idioma en que se publicó.
The aim of this study was to carry out a systematic review and meta-analysis of the effects of caffeine supplementation on physiological responses to submaximal exercise. A total of 26 studies met the inclusion criteria of adopting double-blind, randomized crossover designs that included a sustained (5-30 min) fixed-intensity bout of submaximal exercise (constrained to 60-85% maximal rate of oxygen consumption) using a standard caffeine dose of 3-6 mg·kg-1 administered 30-90 min prior to exercise. Meta-analyses were completed using a random-effects model, and data are presented as raw mean difference (D) with associated 95% confidence limits (CLs). Relative to placebo, caffeine led to significant increases in submaximal measures of minute ventilation (D = 3.36 L·min-1; 95% CL, 1.63-5.08; P = .0001; n = 73), blood lactate (D = 0.69 mmol·L-1; 95% CL, 0.46-0.93; P -1; 95% CL, 0.29-0.55; P < .00001; n = 129). In contrast, caffeine had a suppressive effect on ratings of perceived exertion (D = -0.8; 95% CL, -1.1 to -0.6; P < .00001; n = 147). Caffeine had no effect on measures of heart rate (P = .99; n = 207), respiratory exchange ratio (P = .18; n = 181), or oxygen consumption (P = .92; n = 203). The positive effects of caffeine supplementation on sustained high-intensity exercise performance are widely accepted, although the mechanisms to explain that response are currently unresolved. This meta-analysis has revealed clear effects of caffeine on various physiological responses during submaximal exercise, which may help explain its ergogenic action.
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