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Researchers point important alterations in the cardio, respiratory, and circulatory system in individuals when submitted to immersion in heated water (34ºC). This study aimed at comparing the ergospirometric answers for a group of patients with Congestive Heart Failure, age 55 to 75 years, when submitted to an effort in land and underwater on a treadmill at one depth, water on the breast level - nipples.
In the human body immersed, the water exerts a pressure on the surface; consequently there is a blood volume shift from the periphery to the central circulation, resulting in marked volume loading of the thorax and heart. Exercise in warm water, as a rehabilitation program has been considered potentially dangerous in patients with heart failure due to the increased venous return caused by the hydrostatic pressure. However, exercise in water has advantages compared to conventional training if the water temperature is controlled, specific reference to exercise capacity, muscle function, quality of life and safety.
This study is about to compare the responses of one effort in two different environment. A group of 90 men, age between 55 to 75 years old recruited after a medical consultation, with the diagnostic of Congestive Heart Failure (CHF), under treatment at the Institute of Medicine and Rehabilitation and Institute Dante Pazzanesi, and considered clinically stable (no cardiac symptoms or changes in medication for at least 30 days).
Experimental Design: Patients will perform an Ergospirometry test first in a treadmill on land and than in the water. The following variables will be comparing: VO2 max, VO2/FC, VE, AP max, difference of time among compensation point and anaerobic threshold, VE/VO2 and VE/VCO2 obtained in land versus swimming pool at breast levels. A group of 45 patients will be submitted to a aquatic exercises (3) tree times a week (30 minutes) during six month, another group will be training at the same frequency and time on thought land exercises.
Before and after the intervention, patients will perform pulmonary function test and cardiopulmonary exercise testing. The exercises will be control by the sub-maximal heart rates.
Control: Active Control, Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Congestive Heart Failure
Aerobic and anaerobic capacity use aquatic exercises
Clinical Hospital, School of Medicine, University of Sao Paulo
University of Sao Paulo General Hospital
Published on BioPortfolio: 2014-07-23T21:12:36-0400
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