Caffeine improves endurance in 75-yr-old citizens: a randomized, double-blind, placebo-controlled, crossover study
Norager CB, Jensen MB, Madsen MR, Laurberg S
Journal of applied physiology (Bethesda, Md. : 1985) · 38 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
- Sundhed og Sygdom, Det Frie Forskningsråd
Según 1 financiador declarado.
Publicación
- Publicado
- 2005-08-05 · J Appl Physiol (1985) · vol. 99 · número 6 · págs. 2302–2306
- Editorial
- American Physiological Society
- Citado
- 68 citas · más que el 88% de estudios similares · 2.3× el promedio de su campo
- Referencias
- 44 trabajos
- Acceso
- De pago
- Áreas de investigación
- Coffee research and impacts · Muscle metabolism and nutrition · Exercise and Physiological Responses
- Palabras clave
- caffeine, exercise endurance, older adults, physical performance, cycling endurance, rating of perceived exertion, postural stability, reaction time, muscle strength, walking speed
- MeSH
- muscle, skeletal, humans, caffeine, administration, oral, cross-over studies, double-blind method, psychomotor performance, placebo effect, physical endurance, posture, locomotion, isometric contraction, aged, female, male, physical exertion
4 autores
- Charlotte Buchard Nørager🇩🇰Aarhus University Hospital; Regionshospitalet Herning
- Martin Bach Jensen🇩🇰Aarhus University
- Mogens Rørbæk Madsen
- Søren Laurberg
Resumen
El texto original del estudio, en el idioma en que se publicó.
This study investigated the effect of caffeine on physical performance in healthy citizens aged > or =70 yr. The randomized, double-blind, placebo-controlled, crossover study was conducted in 15 men and 15 women recruited by their general practitioner. Participants abstained from caffeine for 48 h and were randomized to receive one capsule of placebo and then caffeine (6 mg/kg) or caffeine and then placebo with 1 wk in between. One hour after intervention, we measured reaction and movement times, postural stability, walking speed, cycling at 65% of expected maximal heart rate, perceived effort during cycling, maximal isometric arm flexion strength, and endurance. Analysis was by intention to treat, and P or =70 yr, but the participants' reasons for stopping the test may have varied between subjects, as the cycling test was done at approximately 55% of maximal oxygen consumption. Further studies are required to investigate whether caffeine can be utilized to improve the physical performance of elderly citizens.
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