Carbohydrate mouth rinse and caffeine improves high-intensity interval running capacity when carbohydrate restricted
Kasper AM, Cocking S, Cockayne M, Barnard M, Tench J, Parker L, McAndrew J, Langan-Evans C, Close GL, Morton JP
European journal of sport science · 41 citas
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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
- 2015-06-02 · Eur J Sport Sci · vol. 16 · número 5 · págs. 560–568
- Editorial
- Taylor & Francis
- Citado
- 61 citas · más que el 93% de estudios similares · 3.6× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 40 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Cardiovascular and exercise physiology
- Palabras clave
- Placebo, Caffeine, Carbohydrate, Medicine, Evening, Mouth rinse, Time trial, Morning, Heart rate, Animal science, Internal medicine, Anesthesia, Blood pressure, Biology, Dentistry
- MeSH
- humans, caffeine, dietary carbohydrates, blood glucose, mouthwashes, exercise, physical endurance, running, adult, male, athletic performance, young adult
10 autores
- Andreas M. Kasper🇬🇧Liverpool John Moores University
- Scott Cocking🇬🇧Liverpool John Moores University
- Molly Cockayne🇬🇧Liverpool John Moores University
- Marcus Barnard🇬🇧Liverpool John Moores University
- Jake Tench🇬🇧Liverpool John Moores University
- Liam Parker🇬🇧Liverpool John Moores University
- John Mcandrew🇬🇧Liverpool John Moores University
- Carl Langan‐Evans🇬🇧Liverpool John Moores University
- Graeme Leonard Close🇬🇧Liverpool John Moores University
- James Peter Morton🇬🇧 · autor de correspondenciaLiverpool John Moores University
Resumen
El texto original del estudio, en el idioma en que se publicó.
We tested the hypothesis that carbohydrate mouth rinsing, alone or in combination with caffeine, augments high-intensity interval (HIT) running capacity undertaken in a carbohydrate-restricted state. Carbohydrate restriction was achieved by performing high-intensity running to volitional exhaustion in the evening prior to the main experimental trials and further refraining from carbohydrate intake in the post-exercise and overnight period. On the subsequent morning, eight males performed 45-min steady-state (SS) exercise (65% [Formula: see text]) followed by HIT running to exhaustion (1-min at 80% [Formula: see text]interspersed with 1-min walking at 6 km/h). Subjects completed 3 trials consisting of placebo capsules (administered immediately prior to SS and immediately before HIT) and placebo mouth rinse at 4-min intervals during HIT (PLACEBO), placebo capsules but 10% carbohydrate mouth rinse (CMR) at corresponding time-points or finally, caffeine capsules (200 mg per dose) plus 10% carbohydrate mouth rinse (CAFF + CMR) at corresponding time-points. Heart rate, capillary glucose, lactate, glycerol and NEFA were not different at exhaustion during HIT (P > 0.05). However, HIT capacity was different (P < 0.05) between all pair-wise comparisons such that CAFF + CMR (65 ± 26 min) was superior to CMR (52 ± 23 min) and PLACEBO (36 ± 22 min). We conclude that carbohydrate mouth rinsing and caffeine ingestion improves exercise capacity undertaken in carbohydrate-restricted states. Such nutritional strategies may be advantageous for those athletes who deliberately incorporate elements of training in carbohydrate-restricted states (i.e. the train-low paradigm) into their overall training programme in an attempt to strategically enhance mitochondrial adaptations of skeletal muscle.
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