Comparative Study of Cardiopulmonary Exercise Test Land Versus Water

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2/PHASE3

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-04-30

Study Completion Date

2012-07-31

Brief Summary

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At the neck level immersion, the water pressure causes significant displacement of blood from the lower limbs to the Intrathoracic circulation, triggering adaptive physiological responses due to the increase in central blood volume and consequent cardiovascular burdens. Immersion in warm water breaks the homeostasis, stimulates regulation mechanisms and responses of organs and systems beneficial to healthy and heart failure individuals. In literature there are a growing number of studies demonstrating the efficacy of exercises performed in the water.

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Detailed Description

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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, considered clinically stable (no cardiac symptoms or changes in medication for at least 30 days) and Funcional Class I, II, III according to NYHA.

Experimental Design: Patients will perform an test, first on land, and in a week time in a underwater treadmill. The data will be collected in four distinct moments: 1- anaerobic threshold (AT), 2- respiratory compensation point (RCP), 3- maximal effort (ME) and recovery (R). We will compare the following variables: test total time; perceived exertion scale (Borg); Heart rate (HR); Oxygen consumption (VO2); Carbon Dioxide production (VCO2); Oxygen pulse (VO2/FC); the ventilatory efficiency (VE/VO2) and (VE/VCO2); Respiratory quotient (VCO2/VO2); Systolic and Diastolic blood pressure; electrocardiographic changes, compatible with ischemia or arrhythmia.

Conditions

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Congestive Heart Failure

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators

Study Groups

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comparation VE/VO2 and VE/VCO2

Group Type EXPERIMENTAL

Aerobic and anaerobic capacity use aquatic exercises

Intervention Type OTHER

Improve aerobic capacity use aquatic exercises in patients with Congestive Heart Failure

Interventions

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Aerobic and anaerobic capacity use aquatic exercises

Improve aerobic capacity use aquatic exercises in patients with Congestive Heart Failure

Intervention Type OTHER

Other Intervention Names

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Aerobic and anaerobic capacities

Eligibility Criteria

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Inclusion Criteria

Inclusion Criteria: Patientes, 55 - 75 year, with Congestive Heart Failure (CHF)Functional class I - II and III according to the New York Heart Association (NYHA) and Injection Fracion 32% to 38%

Exclusion Criteria: Any peripheral artery disease, diabetes, pulmonary disease, hypertension (blood pressure \>160/90) or significant cardiovascular morbidity.

Minimum Eligible Age

55 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No