Caffeine consumption around an exercise bout: effects on energy expenditure, energy intake, and exercise enjoyment
Schubert MM, Hall S, Leveritt M, Grant G, Sabapathy S, Desbrow B
Journal of applied physiology (Bethesda, Md. : 1985) · 30 citas
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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
- 2014-08-15 · J Appl Physiol (1985) · vol. 117 · número 7 · págs. 745–754
- Editorial
- American Physiological Society
- Citado
- 46 citas · más que el 88% de estudios similares · 2.6× el promedio de su campo
- Referencias
- 51 trabajos
- Acceso
- Acceso abierto (copia en repositorio)
- Áreas de investigación
- Coffee research and impacts · Muscle metabolism and nutrition · Exercise and Physiological Responses
- Palabras clave
- caffeine supplementation, physical activity, energy expenditure, energy intake, negative energy balance, fat oxidation, substrate metabolism, appetite, exercise enjoyment, weight loss, cycling, post-exercise recovery
- MeSH
- humans, caffeine, exercise, cross-over studies, double-blind method, personal satisfaction, energy metabolism, energy intake, adult, female, male, young adult
6 autores
- Matthew M. Schubert🇦🇺 · autor de correspondenciaGriffith University
- Susan Hall🇦🇺Griffith University
- MICHAEL D. LEVERITT🇦🇺The University of Queensland
- Gary Dean Grant🇦🇺Griffith University
- Surendran Sabapathy🇦🇺Griffith University
- Ben Desbrow🇦🇺Griffith University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Combining an exercise and nutritional intervention is arguably the optimal method of creating energy imbalance for weight loss. This study sought to determine whether combining exercise and caffeine supplementation was more effective for promoting acute energy deficits and manipulations to substrate metabolism than exercise alone. Fourteen recreationally active participants (mean ± SD body mass index: 22.7 ± 2.6 kg/m2) completed a resting control trial (CON), a placebo exercise trial (EX), and a caffeine exercise trial (EX+CAF, 2 × 3 mg/kg of caffeine 90 min before and 30 min after exercise) in a randomized, double-blinded design. Trials were 4 h in duration with 1 h of rest, 1 h of cycling at ∼65% power at maximum O2 consumption or rest, and a 2-h recovery. Gas exchange, appetite perceptions, and blood samples were obtained periodically. Two hours after exercise, participants were offered an ad libitum test meal where energy and macronutrient intake were recorded. EX+CAF resulted in significantly greater energy expenditure and fat oxidation compared with EX (+250 kJ; +10.4 g) and CON (+3,126 kJ; +29.7 g) (P < 0.05). A trend for reduced energy and fat intake compared with CON (-718 kJ; -8 g) (P = 0.055) was observed. Consequently, EX+CAF created a greater energy deficit (P < 0.05). Caffeine also led to exercise being perceived as less difficult and more enjoyable (P < 0.05). Combining caffeine with exercise creates a greater acute energy deficit, and the implications of this protocol for weight loss or maintenance over longer periods of time in overweight/obese populations should be further investigated.
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