The effect of caffeine on cognitive task performance and motor fatigue
van Duinen H, Lorist MM, Zijdewind I
Psychopharmacology · 52 citas
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 independiente
- Gobierno
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Según 1 financiador declarado.
Publicación
- Publicado
- 2005-02-18 · Psychopharmacology (Berl) · vol. 180 · número 3 · págs. 539–547
- Editorial
- Springer Science+Business Media
- Citado
- 98 citas · más que el 92% de estudios similares · 3.3× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 42 trabajos
- Acceso
- De pago
- Áreas de investigación
- Coffee research and impacts · Sleep and Work-Related Fatigue · Human-Automation Interaction and Safety
- Palabras clave
- caffeine, motor fatigue, dual-task performance, cognitive performance, choice reaction time, finger flexion, reaction time
- MeSH
- muscle, skeletal, humans, caffeine, central nervous system stimulants, double-blind method, cognition, auditory perception, choice behavior, task performance and analysis, reaction time, muscle fatigue, muscle contraction, coffee, adolescent, adult, female, male
3 autores
- H. van Duinen🇳🇱 · autor de correspondenciaUniversity of Groningen
- Monicque M. Lorist🇳🇱University of Groningen
- Inge Zijdewind🇳🇱University of Groningen
Resumen
El texto original del estudio, en el idioma en que se publicó.
Rationale
In everyday life, people are usually capable of performing two tasks simultaneously. However, in a previous study we showed that during a fatiguing motor task, cognitive performance declined progressively. There is extensive literature on the (positive) effects of caffeine on cognitive and motor performance. These effects are most pronounced under suboptimal conditions, for example during fatigue. However, little is known about the effects of caffeine on cognitive performance during a fatiguing motor task.
Objective
This study was aimed to investigate whether a moderate dose of caffeine could attenuate the decline in cognitive performance during a fatiguing motor task.
Methods
The study consisted of a placebo and a caffeine (3 mg/kg) session. A total of 23 subjects completed these sessions in a semi-randomized and double-blind order. In each session, subjects performed maximal voluntary contractions of the index finger, a choice reaction time (CRT) task and a dual task consisting of a fatiguing motor task concomitantly with the same CRT task. After the fatiguing dual task, the CRT task was repeated.
Results
Caffeine improved cognitive task performance, in both the single and dual task, as shown by decreased reaction times together with unchanged accuracy. Cognitive performance in the dual task deteriorated with increasing fatigue. However, the decrease in cognitive performance in the beginning of the dual task, as observed in the placebo condition, was partly prevented by caffeine administration (i.e., no increase in reaction times). We found no effects of caffeine on motor parameters (absolute force, endurance time or electromyographic amplitude).
Conclusions
Caffeine improved cognitive performance. This effect also extends under demanding situations, as was shown by the performance during the dual task, even during progressive motor fatigue.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial.
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