NCT03112070

Post-Exercise Hypotension After Water Exercise

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

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 24 (actual)
• Sponsor: Instituto de Cardiologia do Rio Grande do Sul · Academic / Other
• Sex: Female
• Age: 65 Years – 80 Years
• Healthy volunteers: Not accepted

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.

Conditions

• Postexercise Hypotension

Interventions

Type	Name	Description
OTHER	Water aerobic exercise session (WATER)	A continuous session of dynamic water aerobic exercise which consist of a dynamic warm-up period (5 minutes), an active exercise period (35 minutes), and a cooldown period (5 minutes) to total 45 minutes. Heart rate (HR) will be continuously measured with heart monitors (Polar) to confirm the intensity of the WATER session. The WATER intensity will be calculated according to the formula proposed by Kruel for exercise in an aquatic environment18 as follows: HR for exercise = % x (HRmax - ΔHR); % is the intensity of exercise; HRmax is the maximum HR (estimated by 220 - age); ΔHR represents the difference between resting HR on land and resting HR in the water environment. Exercise intensities: 55-60% HRmax during warm-up; 70-75% HRmax during active exercise; and 55-60% HRmax during cooldown.

Timeline

• Start date: 2016-04-04
• Primary completion: 2017-04-30
• Completion: 2017-04-30
• First posted: 2017-04-13
• Last updated: 2017-07-24

Locations

1 site across 1 country: Brazil