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Aerobic Physical Training and Heart Rate Variability in Hypertersion

21 febbraio 2017 aggiornato da: Taís Mendes de Camargo, University of Campinas, Brazil

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.

Panoramica dello studio

Descrizione dettagliata

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.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

63

Fase

  • Non applicabile

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 80 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

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

Exclusion Criteria:

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Non randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Physical training program

Intervention 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.

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
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.
Nessun intervento: Control Group
Control participants receive routine outpatient care for a 12-week period.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Heart rate variability will be measured by nonlinear methods in hypertensive patients to observe changes in baseline values after 12 weeks.
Lasso di tempo: Finalized study (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
Finalized study (12 weeks)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
The peak oxygen consumption (mL / kg · min) will be measured by ergospirometry in hypertensive patients to observe changes in baseline values after 12 weeks.
Lasso di tempo: Finalized study (12 weeks)
Cardiopulmonary exercise test used to determine peak oxygen consumption to exercise .
Finalized study (12 weeks)
The double product (mmHg) will be measured by ergospirometry in hypertensive patients to observe changes in baseline values after 12 weeks.
Lasso di tempo: Finalized study (12 weeks)
Cardiopulmonary exercise test used to determine double produc to exercise .
Finalized study (12 weeks)
The oxigen pulse (ml/heart rate) will be measured by ergospirometry in hypertensive patients to observe changes in baseline values after 12 weeks.
Lasso di tempo: Finalized study (12 weeks)
Cardiopulmonary exercise test used to determine oxigen pulse to exercise .
Finalized study (12 weeks)

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

14 novembre 2014

Completamento primario (Effettivo)

21 dicembre 2015

Completamento dello studio (Effettivo)

16 gennaio 2017

Date di iscrizione allo studio

Primo inviato

19 febbraio 2017

Primo inviato che soddisfa i criteri di controllo qualità

21 febbraio 2017

Primo Inserito (Effettivo)

27 febbraio 2017

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

27 febbraio 2017

Ultimo aggiornamento inviato che soddisfa i criteri QC

21 febbraio 2017

Ultimo verificato

1 febbraio 2017

Maggiori informazioni

Termini relativi a questo studio

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

prodotto fabbricato ed esportato dagli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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