NCT03137849

Brief Summary

Autonomic and endothelial imbalance in post menopause women raise the need to manage cardiovascular risk. Yoga poses and breathing control present controversial results on prevention and treatment of hypertension.. The aim of this study is to compare the effect of 12 week intervention based on yoga poses and their muscle contractions known as bandhas (pelvic floor, core and throat/neck) and ujjayi pranayama (victorious breath) on autonomic modulation, endothelial function, arterial stiffness, aerobic capacity and cognitive function of hypertensive post-menopausal women.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable hypertension

Timeline
Completed

Started Jul 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 15, 2017

Completed
2 months until next milestone

First Posted

Study publicly available on registry

May 3, 2017

Completed
3 months until next milestone

Study Start

First participant enrolled

July 18, 2017

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2018

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 20, 2018

Completed
Last Updated

July 23, 2019

Status Verified

July 1, 2017

Enrollment Period

12 months

First QC Date

March 15, 2017

Last Update Submit

July 22, 2019

Conditions

Keywords

YogaHypertensionPost-Menopausal WomenHeart Rate Variability

Outcome Measures

Primary Outcomes (1)

  • Cardiovascular autonomic control by heart rate variability(HRV) and blood pressure variability (BPV) in frequency domain acquired by Finometer

    Sympathovagal balance HRV (ratio of low frequency (LF in ms2) and high frequency (HF in ms2) components of HRV = LF/HF)

    30 minutes

Secondary Outcomes (14)

  • Carotid -femoral pulse wave velocity (Complior)

    10 minutes

  • Maximal Oxygen Uptake by Cardiopulmonary Exercise Test

    45 minutes

  • Ambulatory Arterial Pressure Monitoring

    24 hours

  • Respiratory rate and movements of rib cage and abdomen by Pneumotrace respiratory belt

    30 minutes along with Finometer

  • Blood samples laboratorial analysis

    5 minutes

  • +9 more secondary outcomes

Study Arms (4)

Yoga Poses + Breath control

ACTIVE COMPARATOR

Twice a week 75 minutes video class of yoga poses routine ( including yoga bandhas with specific muscles contractions) combined with ujjayi pranayama technique as breath control

Other: Yoga PosesOther: Breath Control

Yoga Poses

ACTIVE COMPARATOR

Twice a week 75 minutes video class of yoga poses routine ( including yoga bandhas/ specific muscles contractions)

Other: Yoga Poses

Stretching Exercises + Breath control

ACTIVE COMPARATOR

Twice a week 75 minutes video class of stretching exercises routine combined with ujjayi pranayama technique as breath control

Other: Breath ControlOther: Stretching exercises

Stretching Exercises

ACTIVE COMPARATOR

Twice a week 75 minutes video class of stretching exercises routine

Other: Stretching exercises

Interventions

Yoga poses routine including specific muscles contractions known as bandhas (pelvic floor, core and throat/neck contraction) within each pose, which are advised to be done with steadiness and comfort.

Yoga PosesYoga Poses + Breath control

Ujjayi pranayama (Victorious breath) Inhalation and exhalation are both done through the nose. The "ocean sound" is created by moving the glottis as air passes in and out. As the throat passage is narrowed so, too, is the airway, the passage of air through which creates a "rushing" sound. The length and speed of the breath is controlled by the diaphragm, the Strengthening of which is, in part, the purpose of ujjayi. The inhalations and exhalations are equal in duration.

Stretching Exercises + Breath controlYoga Poses + Breath control

Stretching exercises routine based on dynamic and static exercises excluding those similar to yoga poses. This routine works on great range of motion of all body joints and main muscles groups/ chains.

Stretching ExercisesStretching Exercises + Breath control

Eligibility Criteria

Age45 Years - 65 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • FSH\>35mui/ml
  • minimum 12 months amenorrhea
  • sedentary life style (less than 150 minutes per week of exercise)
  • never been in yoga -practicing (self declaration)
  • Blood pressure \> 140/90 or in continuous use of medication (diuretics,Ca+ channel inhibitors, ACE inhibitors)

You may not qualify if:

  • Use of Betablockers
  • recent cardiovascular events or surgery
  • renal alterations
  • respiratory and/or motor pathologies
  • smoking
  • BMI\>34,9

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cardiology Institute of Rio Grande do Sul

Pôrto Alegre, Rio Grande do Sul, Brazil

Location

MeSH Terms

Conditions

Hypertension

Interventions

Muscle Stretching Exercises

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Maria Cláudia Irigoyen, PhD

    Institute of Cardiology/ University Foundation of Cardiology

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
All participants will be told they are attending to a yoga protocol. All outcomes assessments will be taken by blind investigators to the interventions.
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 15, 2017

First Posted

May 3, 2017

Study Start

July 18, 2017

Primary Completion

June 30, 2018

Study Completion

December 20, 2018

Last Updated

July 23, 2019

Record last verified: 2017-07

Locations