Clinical Trial: Post-Exercise Hypotension After Water Exercise

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional

Official Title: Post-Exercise Hypotension After Water Exercise in Older Women With Hypertension: A Randomized Crossover Clinical Trial

Brief Summary: Hypertension is the most prevalent cardiovascular disease risk factor among individuals 60 years of age and older. Hypertension can be prevented and modified with lifestyle interventions that include regular exercise. Water exercise is widely recommended for older adults for a variety of health benefits, but few studies have assessed the immediate ambulatory blood pressure (BP) response to water exercise, a response termed postexercise hypotension (PEH). We will assess PEH after a session of water aerobics in physically active, older women with hypertension. Twenty-four women will be randomly assign to participate in a 45 min session of moderate intensity, water aerobics (WATER) and a 45 min land control session (CONTROL). All experimental sessions will start at 9 am sharply with 7 days between them. Subjects will left the experiments wearing an ambulatory BP monitor for the next 21 hr.

Detailed Summary:
Sponsor: Instituto de Cardiologia do Rio Grande do Sul

Current Primary Outcome: Blood pressure measurements [ Time Frame: 24-hour ambulatory blood pressure monitoring after water exercise ]

BP measurements will take and monitored using a 24-hour ambulatory blood pressure monitoring (ABPM) protocol according to standard procedures. BP monitoring devices (Spacelab, Redmond, WA, USA) will be used to obtain BP over 21 hours that consiste of four measurements per hour over awake period (10 am to 10 pm) and two measurements per hour over sleep period (10 pm to 6 am). For data analysis we will calculate hourly averages for awake and sleep (during the same periods as mentioned above), and over 21 hours. SBP and DBP data are presente in two different manners: readings per hour during the day and the night periods, and the BP response determined as the difference (delta) between each hourly BP measurement from baseline after WATER compared to CONTROL.


Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Instituto de Cardiologia do Rio Grande do Sul

Dates:
Date Received: April 3, 2017
Date Started: April 4, 2016
Date Completion: April 30, 2017
Last Updated: April 12, 2017
Last Verified: April 2017