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CTRI Number  CTRI/2025/03/081736 [Registered on: 06/03/2025] Trial Registered Prospectively
Last Modified On: 04/03/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Yoga & Naturopathy 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Effect of equi-ratio breathing on heart and lung health in primary hypertension. 
Scientific Title of Study   IMMEDIATE EFFECT OF SAMA VRITTI PRANAYAMA ON CARDIO-PULMONARY VARIABLES IN PRIMARY HYPERTENSIVE INDIVIDUALS: A RANDOMIZED CONTROL TRIAL 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  DrAbhishek Poojari  
Designation  PG Scholar 
Affiliation  Shri Dharmasthala Manjunatheshwara College of Naturopathy and Yogic Sciences Ujire. 
Address  Department of yoga therapeutics Shri Dharmasthala Manjunatheshwara College of Naturopathy and Yogic Sciences Ujire Belathangady Dakshina kannada

Dakshina Kannada
KARNATAKA
574240
India 
Phone  8105601266  
Fax    
Email  abhishekpoojari15493@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Bindu GV 
Designation  Assistant proffessor 
Affiliation  Shri Dharmasthala Manjunatheshwara college of naturopathy and yogic sciences 
Address  Department of Yoga therapeutics Shri Dharmasthala Manjunatheshwara Yoga and Nature Cure Hospital Dharmasthala. Dakshina Kannada KARNATAKA
Shri Dharmasthala Manjunatheshwara college of naturopathy and yogic sciences ujire belathangady dakshina kannada 574240
Dakshina Kannada
KARNATAKA
574216
India 
Phone  8277614169  
Fax    
Email  bindu.shridhar@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Bindu GV 
Designation  Assistant proffessor 
Affiliation  Shri Dharmasthala Manjunatheshwara college of naturopathy and yogic sciences 
Address  Department of Yoga therapeutics Shri Dharmasthala Manjunatheshwara Yoga and Nature Cure Hospital Dharmasthala. Dakshina Kannada KARNATAKA
Shri Dharmasthala Manjunatheshwara college of naturopathy and yogic sciences ujire belathangady dakshina kannada 574240
Dakshina Kannada
KARNATAKA
574216
India 
Phone  8277614169  
Fax    
Email  bindu.shridhar@gmail.com  
 
Source of Monetary or Material Support  
Department of yoga therapeutics Shri Dharmasthala Manjunatheshwara College of Naturopathy and Yogic Sciences Ujire Belathangady Dakshina Kannada 574240  
 
Primary Sponsor  
Name  Dr Abhishek poojari 
Address  Department of yoga therapeutics Shri Dharmasthala Manjunatheshwara College of Naturopathy and Yogic Sciences Ujire Belathangady Dakshina kannada 574240 Karnataka India 
Type of Sponsor  Other [SELF] 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Abhishek Poojari  Shri Dharmasthala Manjunatheshwara Yoga and Nature Cure Hospital Ujire.  Department of yoga therapeutics Shri Dharmasthala Manjunatheshwara College of Naturopathy and Yogic Sciences Ujire Belathangady Dakshina kannada 574240 India
Dakshina Kannada
KARNATAKA 
8105601266

abhishekpoojari15493@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
SDM Institutional Ethical Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: I10||Essential (primary) hypertension,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  control group  Sitting normal breathing for 10 minutes  
Intervention  Sama vritti pranayama   Participants will be informed that they should sit down in a chair or, if they prefer, lie down, and set a timer for 5 minutes. They will be instructed to inhale then hold their breath for the equivalent duration, then exhale for the same duration, and finally hold their breath again for the same duration. For example, they will inhale for 4 seconds, hold for 4 seconds, exhale for 4 seconds, and hold again for 4 seconds, repeating this pattern for the entire 5 minutes. They will be advised that if they feel any strain in maintaining these times, they should reduce the duration of inhales, exhales, and breath holds accordingly. All breathing will be done through the nose, if possible, but if participants feel the need to switch to breathing through their mouth, they will be allowed to do so. After completing the practice, they will be instructed to return to normal breathing. Total Duration of intervention 10 minutes 
 
Inclusion Criteria  
Age From  35.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  35 to 65 years
Both male and female are included
Subjects who are diagnosed as Primary hypertension
Subjects who are under antihypertension medication and non-medication
 
 
ExclusionCriteria 
Details  1 Subjects with other co-morbidities.
2 Subjects diagnosed as Secondary hypertension
3 Subjects with history of Smoking and Alcohol
4 Subjects with increased glycemic profile, history of stroke, current abnormal thyroid function, chronic renal failure, psychological conditions
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Not Applicable 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
Heart rate variability
Pulmonary functions like respiratory rate, forced vital capacity and forced expiratory volume
 
Baseline and immediately after intervention with in 5 minutes
 
 
Secondary Outcome  
Outcome  TimePoints 
Heart rate
Blood pressure 
Baseline
immediately after intervention with in 5 minutes 
 
Target Sample Size   Total Sample Size="78"
Sample Size from India="78" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   N/A 
Date of First Enrollment (India)   15/03/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Yet Recruiting 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary  
Hypertension (HTN) is persistent increase in systemic arterial pressure above a predetermined threshold, it is among the leading factors contributing to morbidity and death in developed nations. It is regarded as the main cause of mortality from cardiovascular disease (45%) and cerebrovascular disease (51%). Cardiovascular disorders are the primary cause of death. In South Asia, hypertension is the third most significant risk factor for the attributable burden of disease(2010). Due to resistant or untreated hypertension the risks of heart attack, stroke, and renal failure can be significantly increased . Long-term uncontrolled hypertension also poses a significant risk for macrovascular and microvascular problems such as retinopathy, chronic renal disease, ischemic heart disease, and stroke. Yoga is a science, an art form, and a way of life that promotes wellness. Yoga first emerged in India more than 5000 years ago mainly for spiritual advancement. Practically speaking, yoga practice seeks to overcome human suffering and promote overall health, happiness, and harmony. Pranayama is a part of yoga, this is a formal discipline of breath control. The terms Prana and Yama make up the Sanskrit word pranayama. The term "ayama," which refers to the pranayama activity, meaning "stretch" or "extend.". Pranayama breathing has shown to alter autonomic activity as it increases parasympathetic activity.
Vritti pranayama comprises of two types: Samavritti and Visamavritti  Pranayama .Samavritti pranayama aims to achieve consistency in the length of each of the four breathing processes: inhalation, retention, exhalation, and retention . It is useful for reducing BP. Sama Vritti Pranayama also called as Box breathing. Breathing patterns and depths directly affect blood pressure, heart rate, ventilation, and oxygenation levels physiologically. There are  no studies exploring the influence on autonomic variables. So, the present study was designed to assess the effect of box breathing on cardiopulmonary variables in primary hypertension. 
 
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