Effects of sauna alone versus postexercise sauna baths on short-term heart rate variability in patients with untreated hypertension
Gayda M, Bosquet L, Paillard F, Garzon M, Sosner P, Juneau M, Bélanger M, Nigam A
Journal of cardiopulmonary rehabilitation and prevention · 15 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
- Universidad u hospital
- Institut de Cardiologie de Montréal
Según 1 financiador declarado.
Publicación
- Publicado
- 2012-05-01 · J Cardiopulm Rehabil Prev · vol. 32 · número 3 · págs. 147–154
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 24 citas · más que el 58% de estudios similares · 0.2× el promedio de su campo
- Referencias
- 39 trabajos
- Acceso
- De pago
- Áreas de investigación
- Heart Rate Variability and Autonomic Control · Thermoregulation and physiological responses · Cardiovascular Syncope and Autonomic Disorders
- Palabras clave
- Medicine, Heart rate variability, Heart rate, Cardiology, Internal medicine, Heart failure, Physical therapy, Blood pressure
- MeSH
- autonomic nervous system, humans, hypertension, electrocardiography, monitoring, physiologic, exercise, exercise therapy, steam bath, follow-up studies, heart rate, time factors, adult, aged, middle aged, male
8 autores
- Mathieu Gayda🇨🇦Montreal Heart Institute
- Laurent Bosquet🇨🇦🇫🇷Montreal Heart Institute; Université de Poitiers
- François Paillard🇨🇦🇫🇷Montreal Heart Institute; Université de Poitiers
- Mauricio Garzón🇨🇦🇫🇷Montreal Heart Institute; Université de Poitiers
- Philippe Sosner🇨🇦🇫🇷Montreal Heart Institute; Université de Poitiers
- Martin Juneau🇨🇦🇫🇷Montreal Heart Institute; Université de Poitiers
- Manon Bélanger🇨🇦🇫🇷Montreal Heart Institute; Université de Poitiers
- Anil Nigam🇨🇦🇫🇷 · autor de correspondenciaMontreal Heart Institute; Université de Poitiers
Resumen
El texto original del estudio, en el idioma en que se publicó.
Purpose
We measured the effects of sauna bathing alone or a 30-minute exercise session followed by sauna bathing on short-term heart rate variability (HRV) in subjects with untreated hypertension.
Methods
Ten patients with untreated hypertension (age 59 ± 10 years) were randomly assigned to (1) a control resting session, (2) two 8-minute sauna-only sessions (S), or (3) a 30-minute aerobic exercise session at 75% of maximal heart rate followed by a sauna session (ES). Spectral analysis of HRV was measured with a Polar S810 heart rate monitor at baseline, during the sauna session, and 15 and 120 minutes after the sauna session (T15 and T120). A Fast Fourier Transformation was used to quantify the power spectral density of the low-frequency (LF) and high-frequency (HF) bands.
Results
For S and ES conditions, LF (NU, normalized unit) and LF/HF were significantly higher (P < .05 and P < .01) in the first and second sauna sessions, and HF (NU) was significantly lower (P < .05, first sauna). At baseline and T15 for S and ES versus control, LF (NU) and LF/HF were significantly higher (P < .05), and HF (NU) was significantly lower (P < .05), without any effect of the 30-minute exercise session.
Conclusions
A single sauna session induced a significant alteration of autonomic cardiovascular control in patients with untreated hypertension, with an increased sympathetic and decreased parasympathetic drive. These alterations were normalized within 15 to 120 minutes after sauna bathing. Additional studies are required to document long-term effects of chronic sauna bathing on autonomic control in patients with hypertension.
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