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Autonomic Nervous System DiseasesNCT03064256

Aerobic Physical Training and Heart Rate Variability in Hypertersion

A study testing Physical training program in people with Autonomic Nervous System Diseases, run by University of Campinas, 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

This study compared the changes in the cardiovascular, hemodynamic and metabolic variables of hypertensive patients who received aerobic physical training with intensity determined by the protocol of double non-exhaustive efforts (DENE) with that of patients who received routine outpatient care 12 weeks after Entry… Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Autonomic Nervous System Diseases
What is being tested?
Physical training program
Could I receive a placebo?
No, everyone receives an active treatment
How many people
63 participants
Where
No sites listed yet
Study dates
14 Nov 2014to 16 Jan 2017
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 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • SBP ≤ 180 mmHg and DBP ≤ 110 mmHg)
  • low risk for physical training.

Who cannot join

  • obesity III
  • musculoskeletal conditions
  • peripheral neuropathy
  • Parkinson's disease.

About this study

Official title: EFFECT OF AEROBIC PHYSICAL TRAINING WITH DETERMINED INTENSITY FOR THE PROTOCOL OF DOUBLE EXHAUSTIVE EFFORTS IN THE AUTONOMICAL MODULATION OF THE HEART FREQUENCY OF PATIENTS WITH SYSTEMIC ARTERIAL HYPERTENSION

This study compared the changes in the cardiovascular, hemodynamic and metabolic variables of hypertensive patients who received aerobic physical training with intensity determined by the protocol of double non-exhaustive efforts (DENE) with that of patients who received routine outpatient care 12 weeks after Entry into the study. 63 men and women participated in the study and were allocated in the intervention group (n = 42) and control group (n = 21).The following were performed: Cardiopulmonary exercise test (TECP) for evaluation of peak oxygen consumption (VO2peak), oxygen pulse and double product; DENE protocol for the determination of the intensity of the training. It was obtained the recording of the intervals between consecutive heart beats (iRR) to evaluate the autonomic modulation of the heart rate. Body mass index, waist circumference (AC), hip circumference (CQ) and Waist / hip ratio (WHR) were measured.

Read the detailed description

The study was designed to compare changes in the cardiovascular, hemodynamic and metabolic variables of hypertensive patients who received aerobic physical training with intensity determined by the DENE protocol with that of patients who received routine ambulatory care 12 weeks after entering the study.

Sixty-three hypertensive men and women, divided into the intervention group (GI) (n=42) and the control group (n = 21) participated in the study.

All procedures were performed by trained researchers and qualified staff and the evaluations and intervention were performed at the specialty medical outpatient clinic.

After agreeing to participate in the study, we collected sociodemographic and clinical data, body mass index (BMI), waist circumference (WC) and waist / hip ratio (WHR). The participants were submitted to the cardiopulmonary exercise test (TECP), to evaluate the peak oxygen consumption (VO2peak), oxygen pulse and double product. Between one and seven days after TECP, consecutive heart rate intervals (iRR) were recorded for evaluation of autonomic heart rate modulation using a Polar model RS800CX (Polar Electro Co.Ltda Kempele, Finland). . The DENE protocol for determining the intensity of the training was applied in the GI to determine the training intensity in the treadmill. Intervention participants underwent supervised aerobic physical training at the pre-determined intensity, which consisted of three weekly sessions, lasting one hour, over a period of 12 weeks. Control participants receive routine care from the outpatient clinic for the same period. At the end of the 12 weeks, measures, recording of the iRR intervals, oxygen pulse, double product, BMI, waist circumference (AC), hip circumference (QC) and waist / hip ratio (WHR) were obtained. All subjects were previously informed about the procedures Signed a free and informed consent form. The project was approved by the Commission of Research Committee of the Institution with the number 086.096 / 14.

Being tested
Physical training program
Keywords
Exercisy therapy, Hypertension, Physiopathology, Heart rate, Nonlinear dynamics
Medical subject headings
Autonomic Nervous System Diseases, Hypertension

What participants receive

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

  • Physical training programBehavioural

    Physical training program consisted of three weekly sessions lasting up to one hour over a period of twelve weeks. and will be carried out respecting the traditional training principles: biological individuality, Specificity, overload, adaptation and reversibility

  • Physical training programBehavioural

    All sessions were started with stretches for lower and upper limbs lasting 10 minutes for warm-up, and after trekking on treadmill using the predetermined critical velocity (Vcrit). The exercises were completed with cooling of the muscle groups for one minute still on the treadmill, plus 10 minutes of relaxation exercises on the mat at the end of aerobic exercise.

Study groups in NCT03064256
Study groupRoleWhat they receive
Physical training programExperimentalIntervention participants are submitted to supervised aerobic physical training at the predetermined intensity, which is composed of three weekly sessions, lasting one hour, over a period of 12 weeks. All sessions were started with stretches for lower and upper limbs lasting 10 minutes for warm-up, and after trekking on treadmill using the predetermined critical velocity (Vcrit). The exercises were completed with cooling of the muscle groups for one minute still on the treadmill, plus 10 minutes of relaxation exercises on the mat at the end of aerobic exercise.
Receives: Behavioral: Physical training program
Control GroupNo interventionControl participants receive routine outpatient care for a 12-week period.

What is being measured

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

  1. Heart rate variability will be measured by nonlinear methods in hypertensive patients to observe changes in baseline values after 12 weeks.

    A heart rate meter RS800CX (Polar Electro Co.Ltda. Kempele, Finland) is used to obtain HR and R-R (iR-R) intervals. The iR-Rs are captured from a tape with a coded transmitter placed in the chest region at the 5th intercostal space and transmitted to the cardiofrequency meter where they are recorded

    Measured: Finalized study (12 weeks)

Secondary outcomes (3)
  1. The peak oxygen consumption (mL / kg · min) will be measured by ergospirometry in hypertensive patients to observe changes in baseline values after 12 weeks.

    Cardiopulmonary exercise test used to determine peak oxygen consumption to exercise .

    Measured: Finalized study (12 weeks)

  2. The double product (mmHg) will be measured by ergospirometry in hypertensive patients to observe changes in baseline values after 12 weeks.

    Cardiopulmonary exercise test used to determine double produc to exercise .

    Measured: Finalized study (12 weeks)

  3. The oxigen pulse (ml/heart rate) will be measured by ergospirometry in hypertensive patients to observe changes in baseline values after 12 weeks.

    Cardiopulmonary exercise test used to determine oxigen pulse to exercise .

    Measured: Finalized study (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 posted27 Feb 2017
  2. Study start14 Nov 2014
  3. Primary completion21 Dec 2015
  4. Study completion16 Jan 2017

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
Non-randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
63 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03064256
Sponsor's protocol ID
865.096
Status last verified
Feb 2017
First submitted
19 Feb 2017
Last updated
27 Feb 2017
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Physical training program in people with Autonomic Nervous System Diseases, run by University of Campinas, 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 2 inclusion and 4 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 27 Feb 2017. Status can change between updates, so confirm with the study contact before making plans.

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?

Heart rate variability will be measured by nonlinear methods in hypertensive patients to observe changes in baseline values after 12 weeks. (time frame: Finalized study (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 27 Feb 2017.

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