Acute effects of bolus water intake on post-exercise orthostatic hypotension and cardiovascular hemodynamics
Tajima Y, Komiyama M, Mimura N, Yamamoto M, Fukuie M, Suzuki R, Matsushima S, Hirasawa A, Shibata S
Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 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
- 2024-10-30 · Clin Auton Res · vol. 35 · número 2 · págs. 231–241
- Editorial
- Springer Science+Business Media
- Citado
- 2 citas · más que el 73% de estudios similares · 0.8× el promedio de su campo
- Referencias
- 51 trabajos
- Acceso
- Acceso abierto (copia en repositorio) · CC-BY
- Áreas de investigación
- Cardiovascular Syncope and Autonomic Disorders · Heart Rate Variability and Autonomic Control · Cardiovascular and exercise physiology
- Palabras clave
- orthostatic hypotension, water intake, post-exercise hypotension, cardiovascular hemodynamics, baroreflex sensitivity, cardiac autonomic activity, heart rate variability, systolic blood pressure, standing test
- MeSH
- humans, hypotension, orthostatic, exercise, cross-over studies, blood pressure, heart rate, baroreflex, drinking, adult, female, male, hemodynamics, young adult, post-exercise hypotension
9 autores
- Yuki Tajima🇯🇵Kyorin University
- Mayu Komiyama🇯🇵Kyorin University
- Naoya Mimura🇯🇵Kyorin University
- M Yamamoto🇯🇵Kyorin University
- Marina Fukuie🇯🇵Japan Society for the Promotion of Science
- Rina Suzuki🇯🇵Kyorin University
- Shinya Matsushima🇯🇵Kyorin University
- Ai Hirasawa🇯🇵Kyorin University
- Shigeki Shibata🇯🇵 · autor de correspondenciaKyorin University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Introduction
Water intake is known to be effective in preventing orthostatic hypotension (OH). However, it is unknown whether water intake would be effective in acutely preventing exercise-induced OH.
Methods
Fourteen adults (men/women: 7/7, age: 20 ± 8 years) were recruited. Each subject underwent two protocols with and without 500 ml water intake using a randomized crossover design (Water vs. Control). Participants underwent 30 min of cycle ergometry at the 60-70% predicted VO2 max. OH and hemodynamics were assessed before and after exercise, and immediately (Water 1) and 20 min (Water 2) after the water intake. OH was evaluated with a 1-min standing test as the criteria for systolic blood pressure (SBP) < 90 mmHg. A cross-spectral analysis for RR and SBP variability was used to evaluate the cardiac autonomic activity and baroreflex sensitivity.
Results
In both protocols, the incidence of OH increased after the exercise. The incidence of OH was lower in Water than in Control at Water 1 (OR: 0.093, 95% CI: 0.015-0.591). Heart rate was lower and SBP was higher in Water than in Control at Water 1 and 2 (P < 0.05). High-frequency power of RR variability and transfer function gains in Water were normalized and higher than in Control at Water 1 and 2 (P < 0.05). The ratio of low- to high-frequency power of RR variability in Water was normalized and lower in Water than in Control at Water 1 (P < 0.05).
Conclusion
Our findings indicate that water intake may prevent acute exercise-induced OH, accompanied by normalized cardiac autonomic activity and baroreflex sensitivity.
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