Viewing Study NCT04200716



Ignite Creation Date: 2024-05-06 @ 2:05 PM
Last Modification Date: 2024-10-26 @ 1:24 PM
Study NCT ID: NCT04200716
Status: ACTIVE_NOT_RECRUITING
Last Update Posted: 2023-01-31
First Post: 2019-10-31

Brief Title: Arterial Function After Two Different Physical Exercise Intensities in Prehypertension
Sponsor: University of Sao Paulo General Hospital
Organization: University of Sao Paulo General Hospital

Study Overview

Official Title: Evaluation of Vascular Responses to Moderate-intensity Continuous and High-intensity Interval Physical Exercise in Individuals With Prehypertension a Randomized Trial
Status: ACTIVE_NOT_RECRUITING
Status Verified Date: 2023-01
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: PREHTEXVAS
Brief Summary: Individuals with prehypertension diagnosed according to the 7th Brazilian Guidelines on Hypertension with the presence of systolic blood pressure SBP between 121 and 139 and or diastolic DBP between 81 and 89 mmHg are more likely to become hypertensive and to develop cardiovascular complications Moreover they already have alterations in the function of large arteries that may play a role in the development of the disease in the future An option in the prevention treatment of hypertension is the moderate intensity physical training but high intensity interval training offers the possibility of greater exercise adherence since it can be performed with less volume and less time spent with the same benefits than moderate exercise or even higher being preferred by the population Among these benefits the investigators can mention the post-exercise hypotension PEH which occurs in normotensive prehypertensive and hypertensive individuals due the decreased in sympathetic nerve activity and improved in vascular function Also selected participants with prehypertension can present a profile of masked hypertension identified only by 24 hours ambulatory BP monitoring ABPM Given the possible differences between vascular responses to exercise intensities the investigators intend to compare in prehypertensive patients the vascular responses of large arteries by noninvasive methods and PEH to a session of high intensity exercise and a session of moderate intensity continuous exercise In addition to study some of the possible physiological variables involved in this response by measuring heart rate variability It is expected to find differences in vascular responses according to the presence of masked hypertension Twenty two prehypertensive individuals aged between 30 and 60 years of both sexes will be studied Subjects will perform cardiopulmonary testing and baseline vascular measurements central pressure and pulse wave velocity measurements by three different methods as well as 24 -hour ABPM The vascular measurements will be repeated immediately after and 24 hours after each session Each participant will perform the session of one type of exercise in one day and after three days will perform the other with random distribution to the sequence of exercise type Participants will perform 24-hour ABPM prior to exercise and for 24 hours after each exercise session Data will be compared by appropriate statistical analysis
Detailed Description: The measurement of central pressure and pulse wave velocity are achieved by three follow devices Complior Sphygmocor and Arteriograph The heart rate variability is achieved by Polar device

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
1657782017-2 OTHER_GRANT Conselho Nacional Desenvolvimento Científico e Tecnológico None