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CTRI Number  CTRI/2011/091/000078 [Registered on: 17/01/2011]
Last Modified On: 27/02/2013
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study
Modification(s)  
Other (Specify) [Deep breathing exercises]  
Study Design  Randomized, Parallel Group Trial 
Public Title of Study
Modification(s)  
A clinical trial to study the effects of deep slow breathing exercises in healthy subjects 
Scientific Title of Study
Modification(s)  
Effect of deep slow breathing exercises on spontaneous respiratory rate and short-term heart rate variability. 
Trial Acronym   
Secondary IDs if Any
Modification(s)  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)
Modification(s)  
Name  Elizabeth Tharion 
Designation   
Affiliation   
Address  Department of Physiology
Christian Medical College
Vellore
TAMIL NADU
632002
India 
Phone  04162284268  
Fax  04162262788  
Email  e.tharion@cmcvellore.ac.in  
 
Details of Contact Person
Scientific Query

Modification(s)  
Name  Elizabeth Tharion 
Designation  Associate Professor 
Affiliation  Associate Professor, Department of Physiology, Chritian Medical College, Vellore. 
Address  Department of Physiology
Christian Medical College
Vellore
TAMIL NADU
632002
India 
Phone  04162284268  
Fax  04162262788  
Email  e.tharion@cmcvellore.ac.in  
 
Details of Contact Person
Public Query

Modification(s)  
Name  Elizabeth Tharion 
Designation  Associate Professor 
Affiliation   
Address  Department of Physiology
Christian Medical College
Vellore
TAMIL NADU
632002
India 
Phone  04162284268  
Fax  04162262788  
Email  e.tharion@cmcvellore.ac.in  
 
Source of Monetary or Material Support
Modification(s)  
Christian Medical College, Vellore 
 
Primary Sponsor
Modification(s)  
Name  Christian Medical College 
Address  Vellore Tamil Nadu India 632002 
Type of Sponsor  Private medical college 
 
Details of Secondary Sponsor
Modification(s)  
Name  Address 
NIL   
 
Countries of Recruitment
Modification(s)  
  India  
Sites of Study
Modification(s)  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Elizabeth Tharion  Department of Physiology  Department of Physiology,Christian Medical College-632002
Vellore
TAMIL NADU 
04162284268
04162262788
e.tharion@cmcvellore.ac.in 
 
Details of Ethics Committee
Modification(s)  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Review Board, Christian Medical College, Vellore  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied
Modification(s)  
Health Type  Condition 
Healthy Human Volunteers  Cardio-respiratory interaction and integration in health, or specifically, the effect of respiration on cardiac autonomic control in healthy subjects. 
 
Intervention / Comparator Agent
Modification(s)  
Type  Name  Details 
Intervention  Deep slow breathing exercise  Done daily for 30 minutes for 30 days 
Comparator Agent  Nil intervention  Not applicable 
 
Inclusion Criteria
Modification(s)  
Age From  20.00 Year(s)
Age To  40.00 Year(s)
Gender  Both 
Details  Age of 20 to 40 years, BMI of 19 to 25, Physical activity level of sedentary to moderate as per a questionnaire  
 
ExclusionCriteria 
Details  (1) Any chronic respiratory or cardiovascular diseases (2) Diabetes (3) Known autonomic neuropathy (4) Those on long-term medications (5) Chronic smokers, tobacco chewers/sniffers and alcoholics (6) Pregnant women (8) Women with surgical or natural menopause (9) Those already performing some form of yoga or breathing exercises These will be determined using a pre-test questionnaire.  
 
Method of Generating Random Sequence
Modification(s)  
Computer generated randomization 
Method of Concealment
Modification(s)  
Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking
Modification(s)  
Open Label 
Primary Outcome
Modification(s)  
Outcome  TimePoints 
Respiratory rate  After one month 
 
Secondary Outcome
Modification(s)  
Outcome  TimePoints 
Short-term heart rate variability indices  After one month 
 
Target Sample Size
Modification(s)  
Total Sample Size="36"
Sample Size from India="36" 
Final Enrollment numbers achieved (Total)= ""
Final Enrollment numbers achieved (India)="" 
Phase of Trial
Modification(s)  
N/A 
Date of First Enrollment (India)
Modification(s)  
03/09/2009 
Date of Study Completion (India) Date Missing 
Date of First Enrollment (Global)  03/09/2009 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial
Modification(s)  
Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Completed 
Recruitment Status of Trial (India)  Completed 
Publication Details
Modification(s)  
Tharion E, Samuel P, Rajalakshmi R, Gnanasenthil G, Subramanian RK. Influence of deep breathing exercise on spontaneous respiratory rate and heart rate variability: a randomised controlled trial in healthy subjects.Indian J Physiol Pharmacol. 2012 Jan-Mar;56(1):80-7. 
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary
Modification(s)  
This study was a randomised controlled trial where 36 healthy volunteers of both genders in the age group of 20 to 40 years was recruited and then randomised into an intervention group and control group in a 1:1 ratio. The intervention group was required to perform deep slow breathing excercise daily for one month, while the control group did not perform any breathing exercise. The primary outcome was any change in the spontaneous breathing rate after one month. The secondary outcome was any change in the short-term heart rate varibility indices after one month. 
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