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Hemodynamic Effects of Dry Sauna Followed by Cold Water Immersion in Healthy Subjects

2015-11-05 17:53:22 | BioPortfolio

Summary

The purpose of this study is to determine the safety on sauna followed by cold water bath, a common practice in many countries, 30 healthy subjects aged 40 years and older will be at the Montreal Heart Institute Prevention and Cardiac Rehabilitation centre.

Description

To determine the safety on sauna followed by cold water bath, a common practice in many countries, 30 healthy subjects aged 40 years and older will be at the Montreal Heart Institute Prevention and Cardiac Rehabilitation centre. A recent complete evaluation will have excluded any cardiac condition. Subjects will first spend 10 minutes in a dry sauna at 85 degrees celtius. Immediately after , subjects will be immersed in a cold water bath (ICool , Australia) at a temperature of 5 degrees celtius for approximately one minute. Blood pressure , ecg , gaz exchange and thoracic impedance will be measured during sauna and cold water bath.

Principal goal of study: to determine the safety of this practice. Secondary goals of study: to measure the blood pressure response, heart rate, presence of arrythmyas, cardiac output and cerebral perfusion during both conditions.

Primary endpoint: Change in systolic blood pressure from sauna (after 10 minutes ) to cold water (after one minute).

Physiologic measurements: continuous ECG monitoring, BP measurements at every 3 minutes during sauna and at one minute in the cold bath, gaz exchange with a portable equipment (Cosmed K4), bioimpedance and cerebral perfusion with a single frontal NIRS electrode.

Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Prevention

Conditions

Blood Pressure

Intervention

Sauna and cold water bath

Location

Cardiovascular Prevention and Rehabilitation Center
Montreal
Quebec
Canada

Status

Recruiting

Source

Montreal Heart Institute

Results (where available)

View Results

Links

Published on BioPortfolio: 2015-11-05T17:53:22-0500

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Therapy of sitting in a hot steamy room followed by a cool bath or shower.

Method in which repeated blood pressure readings are made while the patient undergoes normal daily activities. It allows quantitative analysis of the high blood pressure load over time, can help distinguish between types of HYPERTENSION, and can assess the effectiveness of antihypertensive therapy.

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