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CTRI Number  CTRI/2025/07/090480 [Registered on: 08/07/2025] Trial Registered Prospectively
Last Modified On: 04/07/2025
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Other 
Public Title of Study   A Study Comparing Muscle Activity Around the Knee in College Athletes With and Without Kneecap Movement Problems 
Scientific Title of Study   Comparison of Vastus Medialis and Vastus Lateralis muscle activity in collegiate players with and without Altered Patellar Tracking 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Pavan Kartheek  
Designation  Postgraduate Student - MPT  
Affiliation  Manipal College of Health Professions- Manipal Academy of Higher Education.  
Address  Department of Physiotherapy, room no.: 215, second floor, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Udupi, KARNATAKA, India- 576104

Udupi
KARNATAKA
576104
India 
Phone  9494330570  
Fax    
Email  pavan.mchpmpl2024@learner.manipal.edu  
 
Details of Contact Person
Scientific Query  
Name  Mr Ganesh Balthillaya 
Designation  Assistant Professor( Selection Grade) 
Affiliation  Manipal College of Health Professions- Manipal Academy of Higher Education.  
Address  Department of Physiotherapy, room no.: 215, second floor, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Udupi, KARNATAKA, India- 576104

Udupi
KARNATAKA
576104
India 
Phone  9448263631  
Fax    
Email  Ganesh.bm@manipal.edu  
 
Details of Contact Person
Public Query  
Name  Mr Ganesh Balthillaya 
Designation  Assistant Professor( Selection Grade) 
Affiliation  Manipal College of Health Professions- Manipal Academy of Higher Education.  
Address  Department of Physiotherapy, room no.: 215, second floor, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Udupi, KARNATAKA, India- 576104

Udupi
KARNATAKA
576104
India 
Phone  9448263631  
Fax    
Email  Ganesh.bm@manipal.edu  
 
Source of Monetary or Material Support  
Department of Physiotherapy, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India 576104 
 
Primary Sponsor  
Name  Pavan Kartheek 
Address  Department of Physiotherapy, room no.: 215, second floor, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Udupi, KARNATAKA, India- 576104 Udupi KARNATAKA 576104 India  
Type of Sponsor  Research institution and hospital 
 
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 Pavan Kartheek  Kasturba Hospital  Department of Physiotherapy, N1, First floor, Artificial Limb Centre, Baliga Block, Kasturba Hospital, Udupi- Hebri Road, Madhava Nagar, Manipal, Udupi, Karnataka 576104
Udupi
KARNATAKA 		 9494330570

pavan.mchpmpl2024@learner.manipal.edu 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Kasturba Medical College and Kasturba Hospital Institutional Ethics Committee - 2 (Student Research)  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  Altered Patellar Tracking  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Nil  Nil 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  30.00 Year(s)
Gender  Both 
Details  Presence of J sign.
Outdoor games collegiate players. 
 
ExclusionCriteria 
Details  Any pain in the lower extremities.
History of surgery in the lower extremity in the past six months at the time of assessment.
Low back pain. 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Percentage of Muscle Activity (%MVIC) of Vastus Medialis and Vastus Lateralis  Single time point (during exercise performance at baseline) 
 
Secondary Outcome  
Outcome  TimePoints 
NIL  Not Applicable 
 
Target Sample Size   Total Sample Size="38"
Sample Size from India="38" 
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)   01/08/2025 
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="0"
Months="9"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
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 study will be based on the evaluation of the electrical activity of the Vastus Medialis and Vastus Lateralis muscles using surface electromyography in collegiate athletes with and without altered patellar tracking. Participants will undergo clinical screening using the J sign and then be divided into two groups: one with altered patellar tracking and the other with normal patellar tracking. Muscle activity will be recorded during functional tasks such as single-leg squat, traditional split squat, forward step-up, and lateral step-up. This observational study aims to identify differences in muscle activation patterns that may be associated with patellar maltracking and contribute to the development of effective physiotherapy rehabilitation strategies in athletic populations. 
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