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HypertensionNCT03216317

Isometric Training on Blood Pressure and on the Autonomic Modulation of Hypertensive Patients

A study testing Intervention Group in people with Hypertension, run by Hospital Israelita Albert Einstein at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Objective: analyze the effects of isometric handgrip exercise on arterial pressure and on the autonomic cardiac modulation of hypertensive individuals treated in the Unified Health System (UHS). Intervention: Patients were randomized into Supervised group (SG) and control group (CG). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypertension
What is being tested?
Intervention Group
Could I receive a placebo?
No, everyone receives an active treatment
How many people
65 participants
Where
1 siteBrazil
Study dates
15 Jul 2017to 30 Jul 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • It will include individuals with age range over 18 years of both genders and with controlled hypertension using antihypertensive medication and without the presence of diabetes or other cardiovascular diseases and who do not present high cardiovascular risk.

Who cannot join

  • Those individuals who: a) are diagnosed of diseases such as dyslipidemia, diabetes mellitus, cardiovascular or pulmonary diseases; B) adhere to another program of physical activities besides the training offered by the present study; C) change the class and dose of medication during the study; and d) aggravate the disease.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Unidade Básica de Saúde

    Petrolina, Pernambuco

Other trials in Brazil

About this study

Official title: Effect of Handgrip's Isometric Training on Blood Pressure and on the Autonomic Modulation of Hypertense Individuals at the Basic Health Units: A Multicentric Study

Objective: analyze the effects of isometric handgrip exercise on arterial pressure and on the autonomic cardiac modulation of hypertensive individuals treated in the Unified Health System (UHS).

Intervention: Patients were randomized into Supervised group (SG) and control group (CG). SG will perform supervised isometric handgrip exercise for three weekly sessions in four sets with two minutes of isometric contraction with 30% of maximal voluntary contraction (MVC), In CG, individuals will be encouraged to increase their level of physical activity.

Measurements: Blood pressure, autonomic modulation

Read the detailed description

The objective of this study is to analyze the effects of isometric handgrip exercise on arterial pressure and on the autonomic cardiac modulation of hypertensive individuals treated in the Unified Health System (UHS). Two prospective, randomized, controlled trials will be conducted with hypertensive patients in the public health network of Petrolina (PE) and São Paulo (SP). Included in the study will be individuals with an age group over 18 years of both genders, with systemic arterial hypertension (SAH) controlled with the use of antihypertensive medication, non-smokers and without the presence of diabetes or other cardiovascular diseases that will be allocated randomly in two groups: supervised group (SG) and control group (CG). SG will be instructed to perform supervised isometric handgrip exercise for three weekly sessions in four sets with two minutes of isometric contraction with 30% of maximal voluntary contraction (MVC) of the subjects and interval between two-minute series. In CG, individuals will be encouraged to increase their level of physical activity. Prior to initiation and after 12 weeks of intervention, blood pressure, autonomic cardiac modulation and level of physical activity will be obtained.

Conditions
Hypertension
Being tested
Intervention Group
Keywords
Hypertension, Hypotension, Cardiovascular system
Medical subject headings
Hypertension, Hypotension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT03216317
Study groupRoleWhat they receive
Intervention GroupActive comparatorSubjects will perform three weekly sessions of isometric handgrip training consisting of four series (two in each arm) with two minutes of isometric contraction with intensity of 30% of maximum voluntary contraction with interval between the two-minute series under the guidance of the trained researcher.
Receives: Behavioral: Intervention Group
Control GroupNo interventionIndividuals randomized to Control Group will be encouraged to increase their level of general physical activity, but without specific recommendations on physical activity.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Blood Pressure measure

    The subjects will remain for ten minutes in the seated position, following the guidelines of the VII Brazilian Direction of Hypertension. Three consecutive measurements, one minute apart, in the non-dominant arm and with a cuff size suitable for the circumference of the arm will be performed. The value used will be the average of the last two measures, as recommended by the VII Brazilian Arterial Hypertension Guideline.

    Measured: 12 weeks

Secondary outcomes (1)
  1. Heart rate variability measure

    The patients will remain 10 minutes lying down, during which the heart rate variability (HRV) intervals will be registered, using a valid heart rate monitor for this function (RS800CX, Polar Electro, Finland). It will be considered a valid signal those with at least five minutes of signal stationary.

    Measured: 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jul 2017
  2. Study start15 Jul 2017
  3. Primary completion30 Dec 2017
  4. Study completion30 Jul 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03216317
Sponsor's protocol ID
55555
Status last verified
Jul 2017
First submitted
11 Jul 2017
Last updated
8 Feb 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Carlson DJ, Dieberg G, Hess NC, Millar PJ, Smart NA. Isometric exercise training for blood pressure management: a systematic review and meta-analysis. Mayo Clin Proc. 2014 Mar;89(3):327-34. doi: 10.1016/j.mayocp.2013.10.030.

    PubMed 24582191
  • Inder JD, Carlson DJ, Dieberg G, McFarlane JR, Hess NC, Smart NA. Isometric exercise training for blood pressure management: a systematic review and meta-analysis to optimize benefit. Hypertens Res. 2016 Feb;39(2):88-94. doi: 10.1038/hr.2015.111. Epub 2015 Oct 15.

    PubMed 26467494
  • Palmeira AC, Farah BQ, Silva GOD, Moreira SR, Barros MVG, Correia MA, Cucato GG, Ritti-Dias RM. Effects of isometric handgrip training on blood pressure among hypertensive patients seen within public primary healthcare: a randomized controlled trial. Sao Paulo Med J. 2021 Nov 15;139(6):648-656. doi: 10.1590/1516-3180.2020.0796.R1.22042021. eCollection 2021.

    PubMed 34787298

Questions about this trial

What is this clinical trial studying?

A study testing Intervention Group in people with Hypertension, run by Hospital Israelita Albert Einstein at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Feb 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Blood Pressure measure (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03216317, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Feb 2019.

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