Aerobic Exercise in Postexercise Cardiovascular Responses in Resistant

Status Completed

Clinical Trial Summary

Aerobic exercise has the potential to diminish blood pressure values. The aim of this study is to determine whether this potential is also applicable for those with resistant hypertension and whether exercise intensity plays a role in this context. We hypothesize that performing an aerobic exercise session reduces blood pressure values in resistant hypertensive patients in a dose-response relation with exercise intensity.

Clinical Trial Description

Exercise prescription is gathering great importance in preventive health. Several organizations endorse the performance of at least 150min/wk of moderate intensity or 75min/wk of higher intensities in order to achieve better health parameters in different contexts. Aerobic exercise is known to be an effective way to diminish BP levels post-session. These responses are widely applicable in hypertensive subjects, acting in aid of BP management treatment. Although these benefits of aerobic exercise are well known, few studies explore the potential of this intervention in resistant-to-treatment patients. Moreover, the effects different intensities of aerobic exercise in this population is scarce. Thus, the aim of this study is to determine the magnitude of BP responses, if there is any, of resistant hypertensive subjects to two different intensities of aerobic exercise, compared with a control session. For that, subjects will be enrolled for one pre-intervention cardiopulmonary exercise testing and three randomized intervention sessions: control, 50%HRmax and 75%HRmax. Prior and immediately after all intervention sessions (during 1h), forearm blood flow and reactive hyperemia will be assessed by venous occlusion plethysmography. After the sessions, 24h blood pressure will be assessed with an ambulatory blood pressure monitoring system. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Hypertension

Clinical Trial Details

NCT number	NCT02249507
Study type	Interventional
Source	Hospital de Clinicas de Porto Alegre
Contact
Status	Completed
Phase	N/A
Start date	September 2013
Completion date	May 2015

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Aerobic Exercise in Postexercise Cardiovascular Responses in Resistant Hypertension: a Cross-over Trial

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms