Effects of Acute Caffeine Intake on Endurance Performance and Cardiac Autonomic Modulation in Patients with COPD
Costa BM, Ferreira Junior A, Ferreira G, Motin C, Lima-Silva AE, Okuno NM
Journal of the American Nutrition Association · 0 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
- 2025-10-28 · J Am Nutr Assoc · vol. 45 · número 4 · págs. 322–328
- Editorial
- Taylor & Francis
- Citado
- 0 citas · más que el 28% de estudios similares · 0.0× el promedio de su campo
- Referencias
- 36 trabajos
- Acceso
- De pago
- Áreas de investigación
- Coffee research and impacts · Cardiovascular and exercise physiology · Sports Performance and Training
- Palabras clave
- caffeine, chronic obstructive pulmonary disease, endurance performance, time to exhaustion, cardiac autonomic modulation, heart rate variability, heart rate recovery, ergogenic aids, physical activity
- MeSH
- heart, autonomic nervous system, humans, pulmonary disease, chronic obstructive, caffeine, exercise test, cross-over studies, double-blind method, heart rate, physical endurance, aged, middle aged, female, male
6 autores
- Bruno Margueritte Costa🇧🇷 · autor de correspondenciaUniversidade Estadual de Ponta Grossa
- Adalberto Ferreira🇧🇷Universidade Estadual de Ponta Grossa
- G. Ferreira🇧🇷Universidade Estadual de Ponta Grossa
- Cleverson Motin🇧🇷Universidade Estadual de Ponta Grossa
- Adriano Eduardo Lima‐Silva🇧🇷Universidade Tecnológica Federal do Paraná
- Nilo Massaru Okuno🇧🇷Universidade Estadual de Ponta Grossa
Resumen
El texto original del estudio, en el idioma en que se publicó.
Objective
This study aimed to investigate the effects of acute caffeine (CAF) intake on heart rate, time to exhaustion, and cardiac autonomic modulation during a constant-load exercise test in patients with chronic obstructive pulmonary disease (COPD).
Methods
A counterbalanced, randomized, double-blind, placebo-controlled, and crossover design was adopted in the present study. Eleven patients diagnosed with COPD initially performed a maximal incremental exercise test on a cycle ergometer, and from 72 to 96 h later, a constant-load exercise test (60% of the peak power achieved in the maximal incremental exercise test) after ingestion of CAF (5 mg.kg-1) or placebo (cellulose, PLA) 60 min before the test. Heart rate (HR) and heart rate variability (HRV) were continuously monitored beat-to-beat throughout the test and recovery using a portable HR monitor.
Results
During exercise, the response of HR showed a significant effect of time (p p = 0.76) or a time x condition interaction (p = 0.74). CAF ingestion increased time to exhaustion during the constant-load exercise test compared to PLA (p = 0.04). The CAF ingestion also reduced the magnitude of HR recovery 60 s post-exercise in comparison with PLA (p = 0.02). No other significant differences were found for HR recovery in further time points or HRV indices (p > 0.05).
Conclusion
In conclusion, acute CAF ingestion increased time to exhaustion in a constant-load exercise test in patients with COPD. There was no main effect of CAF on HR during exercise. Although CAF reduced HR recovery at the beginning of recovery, CAF did not seem to induce more prolonged changes on cardiac autonomic modulation post-exercise. These findings suggest CAF could be safety used as an effective ergogenic aid to optimize the endurance performance of patients with COPD.
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