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CTRI Number  CTRI/2025/06/089122 [Registered on: 19/06/2025] Trial Registered Prospectively
Last Modified On: 18/06/2025
Post Graduate Thesis  No 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Other 
Public Title of Study   Study on the Impact of Breathing Pattern and Respiratory Muscle Strength on Static Balance in Sports Players With and Without Chronic Ankle Instability  
Scientific Title of Study   Association between breathing pattern, respiratory muscle strength and static balance among sports players with and without chronic ankle instability  
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
Nil  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Keerthivarman A 
Designation  Student 
Affiliation  SRM College of physiotherapy 
Address  SRM College of Physiotherapy, SRM Medical College building ,SRMIST, Kattankulathur.

Chennai
TAMIL NADU
603203
India 
Phone  8248404875  
Fax    
Email  keerthivarman407@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Prof D Anandhi 
Designation  Professor 
Affiliation  SRM College of Physiotherapy 
Address  SRM College of Physiotherapy, SRM Medical College Building, SRMIST, Kattankulathur.

Chennai
TAMIL NADU
603203
India 
Phone  9884299924  
Fax    
Email  anandhid@srmist.edu.in  
 
Details of Contact Person
Public Query
 
Name  Keerthivarman A 
Designation  Student 
Affiliation  SRM college of Physiotherapy 
Address  SRM College of Physiotherapy, SRM Medical College building ,SRMIST, Kattankulathur.

Chennai
TAMIL NADU
603203
India 
Phone  8248404875  
Fax    
Email  keerthivarman407@gmail.com  
 
Source of Monetary or Material Support  
NIl 
 
Primary Sponsor  
Name  Keerthivarman A 
Address  SRM College of Physiotherapy, SRMIST, Kattankulathur. 603203 
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 Anandhi PT  SRM College of Physiotherapy  Biomechanics PG lab, 5th floor, SRM College of Physiotherapy, SRM Medical College building, SRMIST, Kattankulathur
Chennai
TAMIL NADU 
9884299924

anandhid@srmist.edu.in 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethical Committee SRM Medical College Hospital and Research Centre, Kattankulathur  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  Sports person with ankle instability 
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Nil  Nil 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  24.00 Year(s)
Gender  Both 
Details  A previous history of at least 1 significant lateral ankle sprain resulting in swelling, pain, and temporary loss of function.
History of feelings of giving way at least twice in the past 6 months
Ongoing perceived ankle instability during daily activities.
A score less than or equal to 25 on the Cumberland Ankle Instability Tool. 
 
ExclusionCriteria 
Details  Participants who do not engage in strenous,moderate or mild physical activities.

Participants with Respiratory diseases (e.g., asthma, COPD).

Any History of lower limb surgeries in the last year.

Participants with cardiovascular disorders, scoliosis, ankylosing spondylitis, or any other musculoskeletal disorders that can affect/alter the function of the respiratory system.

Participants with any balance or vestibular disorder.

Any musculoskeletal and neurovascular injuries and disorders in the past 2 years other than lateral ankle sprains.
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
ANKLE INSTABILITY ANALYSIS.
BREATHING PATTERN ANALYSIS.
STATIC BALANCE ANALYSIS.
RESPIRATORY MUSCLE STRENGTH ANALYSIS. 
At baseline 
 
Secondary Outcome  
Outcome  TimePoints 
nil  nil 
 
Target Sample Size   Total Sample Size="42"
Sample Size from India="42" 
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)   30/06/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  30/06/2025 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="0"
Months="3"
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   This cross-sectional study aims to investigate the association between breathing patterns, respiratory muscle strength, and static balance among sports players with and without Chronic Ankle Instability (CAI). CAI is a prevalent condition in athletes, often resulting in impaired proprioception and balance. A total of 42 participants (21 with CAI, 21 controls) will be recruited using the Cumberland Ankle Instability Tool (CAIT). Breathing pattern will be assessed using the HI-LO test, respiratory muscle strength via maximum inspiratory pressure (MIP) with a respiratory pressure meter, and static balance through single-leg stance on a plantar pressure mat. The study seeks to explore whether respiratory function influences balance in CAI-affected athletes, aiming to inform training strategies for injury prevention and improved performance. 
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