Caffeine as a lipolytic food component increases endurance performance in rats and athletes
Ryu S, Choi SK, Joung SS, Suh H, Cha YS, Lee S, Lim K
Journal of nutritional science and vitaminology · 40 citas
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas, más trabajo en animales o laboratorio
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación independiente
- Universidad u hospital
- Kyungpook National University
Según 1 financiador declarado.
Publicación
- Publicado
- 2001-01-01 · J Nutr Sci Vitaminol (Tokyo) · vol. 47 · número 2 · págs. 139–146
- Editorial
- Center for Academic Publications Japan
- Citado
- 84 citas · más que el 79% de estudios similares · 1.2× el promedio de su campo
- Referencias
- 37 trabajos
- Acceso
- Acceso abierto (publicación gratuita)
- Áreas de investigación
- Coffee research and impacts · Muscle metabolism and nutrition · Sports Performance and Training
- Palabras clave
- caffeine, ergogenic aids, endurance performance, lipolysis, fat oxidation, glycogen sparing, free fatty acids, glycerol, respiratory exchange ratio, blood lactate, time to exhaustion, physical activity
- MeSH
- adipose tissue, animals, humans, rats, rats, sprague-dawley, lactates, caffeine, glycogen, fatty acids, nonesterified, breath tests, exercise test, physical conditioning, animal, lipolysis, oxygen consumption, respiration, physical endurance, bicycling, adult, male, physical exertion
7 autores
- Ryu Sungpil
- Sung-Keun Choi🇰🇷Kyung-in Women's University
- Seung-Sam Joung🇰🇷Kyung-in Women's University
- Heajung Suh🇰🇷Kyungpook National University
- Youn‐Soo Cha🇰🇷Jeonbuk National University
- Soochun LEE🇰🇷Kyungpook National University
- Kiwon Lim
Resumen
El texto original del estudio, en el idioma en que se publicó.
Caffeine is one of the famous ergogenic aids in the athletic field. Caffeine has been known to stimulate lipolysis that spares stored glycogen utilization during moderate intensity exercise. Therefore, we investigated the effects of caffeine ingestion on exercise performance in rats and athletes. Rats were administered the caffeine (6 mg/kg) 1 h prior to the exercise then were run on a treadmill at a speed of 20 m/min. They were decapitated at 0 min, 30 min, 60 min of exercise, and exhausted time point. Human subjects ingested the caffeine (5 mg/kg) 1 h prior to the exercise. They exercised on a cycle ergometer at 60% of their VO2max for 45 min, and then the exercise intensity was increased to 80% of their VO2max until exhaustion. Blood and breathing gas samples were collected and calculated every 10 min during exercise. Respiratory exchange ratio of the caffeine trial was significantly lower than that of the placebo trial in the athletes' study (p<0.05). Blood free fatty acid (FFA) levels in studies of both rats and athletes were increased by caffeine ingestion during exercise (p<0.05). Blood lactate levels were also increased during exercise in both rats and athletes (p<0.05). Increased FFA and glycerol concentrations reduced glycogen utilization during exercise compared with placebo group in rats. In addition, endurance time to exhaustion was significantly increased by the caffeine ingestion in both rats and athletes (p<0.05). These results suggest that the caffeine ingestion enhanced endurance performance resulting from spare stored glycogen with increasing lipolysis from adipose tissues and fat oxidation during exercise both in rats and in athletes.
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.