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HypertensionNCT02348138

Effect of Isometric Handgrip Training on Cardiovascular Risk in Hypertensives

A study testing Isometric handgrip training in people with Hypertension, run by University of Pernambuco 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

The main purpose this study is to analyze the effects of isometric handgrip training on cardiovascular risk in hypertensive. For this, approximately 60 hypertensive, under anti-hypertensive medication, will be selected and randomly distributed into three groups: home-based isometric handgrip training (HBT), supervised… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypertension
What is being tested?
Isometric handgrip training
Could I receive a placebo?
No, everyone receives an active treatment
How many people
72 participants
Where
1 siteBrazil
Study dates
Jun 2015to Dec 2016
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

  • Clinical diagnosis of hypertension;
  • Must be under anti-hypertensive medications of three months or more;
  • May not present diabetes or other cardiovascular diseases;
  • May not engaged in regular physical activity;
  • May not have disabilities that compromise the physical activity practices.

Who cannot join

  • Not perform more than 85% of the training sessions;
  • Present diagnosis of metabolic diseases, cardiovascular or pulmonary during the study;
  • Adherence to other physical activity program beyond the training offered by this study;
  • Change in class and / or dose of medication during the study;
  • Not using the medication regularly;
  • Worsening of the disease.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • University of Pernambuco

    Recife, Pernambuco, 50100-130

Other trials in Brazil

About this study

The main purpose this study is to analyze the effects of isometric handgrip training on cardiovascular risk in hypertensive. For this, approximately 60 hypertensive, under anti-hypertensive medication, will be selected and randomly distributed into three groups: home-based isometric handgrip training (HBT), supervised isometric handgrip training (ST) and control group (CG).Subjects assigned to the HBT and ST will train three times per week for a total of 12 weeks, will perform a bout of isometric handgrip exercise: four sets of 2-min isometric contractions (using alternate hands) at 30% of maximal voluntary contraction. However, the subjects of the HBT group conduct the training without daily supervision. Subjects randomized to the CG will be encouraged to increase the level of physical activity and make healthy eating, without, however, receive specific recommendations.Baseline and after 12 weeks of intervention, the following cardiovascular risk indicators will be obtained: blood pressure, arterial stiffness, cardiac autonomic modulation, vasodilatory capacity and oxidative and inflammatory stress markers, in addition to microalbuminuria. For data analysis, in addition to descriptive statistics, two-way ANOVA for mixed model will be applied for within and between groups comparison. If the premises of this test are met. The level of significance that will be adopted is p<0.05.

Conditions
Hypertension
Being tested
Isometric handgrip training
Keywords
Isometric Handgrip
Medical subject headings
Hypertension

What participants receive

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

  • Isometric handgrip trainingOther

    Also called Exercise

    The two experimental groups (HBT and ST) will receive intervention with isometric handgrip exercise for 12 weeks, and the HBT group without daily supervision.

Study groups in NCT02348138
Study groupRoleWhat they receive
Home-based isometric handgrip trainingExperimentalAll participants that will be assigned to home-based isometric handgrip training (HBT) will train three times per week for a total of 12 weeks, will perform a bout of isometric handgrip exercise: four sets of 2-min isometric contractions (using alternate hands) at 30% of maximal voluntary contraction; however, the training will be performed without daily supervision. Therefore, the subjects will receive a logbook to record the exercise sessions. In addition, visits will be scheduled at weeks 1, 3, 6, 9 and 11 to provide feedback to individuals and discuss potential problems in conducting training.
Receives: Other: Isometric handgrip training
Supervised isometric handgrip trainingExperimentalAll participants that will be assigned to supervised isometric handgrip training (ST) will train three times per week for a total of 12 weeks, will perform a bout of isometric handgrip exercise: four sets of 2-min isometric contractions (using alternate hands) at 30% of maximal voluntary contraction with. The training will be performed with daily supervision.
Receives: Other: Isometric handgrip training
Control groupNo interventionSubjects randomized to the control group (CG) will be encouraged to increase the level of physical activity and make healthy eating, without, however, receive specific recommendations

What is being measured

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

  1. Change in office blood pressure

    Measured: Baseline and 12 weeks

Secondary outcomes (7)
  1. Change in ambulatory blood pressure

    Measured: Basaline and 12 weeks

  2. Change in central blood pressure

    Measured: Basaline and 12 weeks

  3. Change in cardiac autonomic modulation

    Measured: Baseline and 12 weeks

  4. Change in vasodilatory capacity

    Measured: Baseline and 12 weeks

  5. Change in arterial stiffness

    Measured: Baseline and 12 weeks

  6. Change in markers of oxidative stress

    Measured: Baseline and 12 weeks

  7. Change in markers of inflammation

    Measured: Baseline and 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 posted28 Jan 2015 (estimated)
  2. Study startJun 2015
  3. Primary completionDec 2016
  4. Study completionDec 2016

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
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
72 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02348138
Sponsor's protocol ID
ISOPRESS
Status last verified
Oct 2017
First submitted
22 Jan 2015
Last updated
4 Oct 2017
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Isometric handgrip training in people with Hypertension, run by University of Pernambuco 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 5 inclusion and 6 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 4 Oct 2017. 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?

Change in office blood pressure (time frame: Baseline and 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 4 Oct 2017.

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