CTRI

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CTRI Number

CTRI/2025/12/098768 [Registered on: 10/12/2025] Trial Registered Prospectively

Last Modified On:

05/12/2025

Post Graduate Thesis

Yes

Type of Trial

Interventional

Type of Study

Physiotherapy (Not Including YOGA)

Study Design

Non-randomized, Multiple Arm Trial

Public Title of Study

Effect of plyometric training patellar tendon stress and agility in amateur volleyball players.

Scientific Title of Study

Assessing the Effectiveness of 10-Week Plyometric Training program in reducing dynamic risk factors for Patellar Tendinitis and on agility in Amateur Volleyball players : A comparative Quasi-experimental study

Trial Acronym

Secondary IDs if Any

Secondary ID	Identifier
NIL	NIL

Details of Principal Investigator or overall Trial Coordinator (multi-center study)

Name	Raman Tamang
Designation	PG student
Affiliation	Dayananda Sagar University , College of physiotherapy
Address	College of physiotherapy , Dayananda Sagar University , Devarakaggalahalli , Harohalli , South Bangalore , Karnataka 562112 Bangalore KARNATAKA 562112 India
Phone	7583997875
Fax
Email	ramantamang1999@gmail.com

Details of Contact Person
Scientific Query

Name	Dr Eluri Mani Sandhya Devi
Designation	Assistant Professor
Affiliation	Dayananda Sagar University , College of physiotherapy
Address	College of physiotherapy , Dayananda Sagar University , Devarakaggalahalli , Harohalli , South Bangalore , Karnataka 562112 Bangalore KARNATAKA 562112 India
Phone	9047082970
Fax
Email	sandhyadevi-physio@dsu.edu.in

Details of Contact Person
Public Query

Name	Dr Jagrruthi NS
Designation	Assistant Professor
Affiliation	Dayananda Sagar University , College of physiotherapy
Address	College of physiotherapy , Dayananda Sagar University , Devarakaggalahalli , Harohalli , South Bangalore , Karnataka 562112 Bangalore KARNATAKA 562112 India
Phone	9108083906
Fax
Email	jagrruthi-physio@dsu.edu.in

Source of Monetary or Material Support

NIL

Primary Sponsor

Name	Dayananda Sagar University, College of Physiotherapy
Address	College of physiotherapy, Dayananda Sagar University, Devarakaggalahalli, Harohalli, South Bangalore, Karnataka 562112
Type of Sponsor	Other [Private university ]

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 Eluri Mani Sandhya Devi	Dayananda Sagar University Volleyball court	Musculoskeletal and sports lab, Room number-HS208,2nd floor, Health science building, college of Physiotherapy, Dayananda Sagar University, Devarakaggalahalli, Harohalli, South Bangalore, Karnataka 562112 Bangalore KARNATAKA Bangalore KARNATAKA	9047082970 sandhyadevi-physio@dsu.edu.in

Details of Ethics Committee

No of Ethics Committees= 1
Name of Committee	Approval Status
College of physiotherapy, Dayananda Sagar University	Approved

Regulatory Clearance Status from DCGI

Status

Not Applicable

Health Condition / Problems Studied

Health Type	Condition
Healthy Human Volunteers	Risk factor of Patellar tendinitis (poor jumping and landing biomechanics)

Intervention / Comparator Agent

Type	Name	Details
Comparator Agent	Lower limb strengthening exercise	A lower limb strengthening program on quadriceps, hip, and calf muscles can improve tendon load capacity and biomechanics, which is central to preventing patellar tendinitis in jumping athletes. It increases tendon stiffness and muscle strength, with monitored training volume and avoiding rapid spikes in load reduces overload episodes.
Intervention	Plyometric exercise	Plyometric exercise consist of stretch-shortening cycle of muscles, in which muscles are rapidly stretched (eccentric phase ) and then contracted (concentric phase ) to generate force and it is know for high-intensity, dynamic movements such as jumps and bounds, has been highly studied for its ability to increase muscle power, improve neuromuscular control, and strengthen the tendons and ligaments. By improving the biomechanics of jumping and landing, plyometric exercises may reduce the risk of tendon overuse injuries while simultaneously increasing level of athletic performance metrics such as vertical jump height and agility.

Inclusion Criteria

Age From	18.00 Year(s)
Age To	28.00 Year(s)
Gender	Both
Details	amateur players with minimum 1 year of playing experience regular practice 3 day/week willing to participate

ExclusionCriteria

Details

presence of existing patellar tendinitis
any lower limb surgery in the last 1 year
not providing written consent

Method of Generating Random Sequence

Computer generated randomization

Method of Concealment

An Open list of random numbers

Blinding/Masking

Participant Blinded

Primary Outcome

Outcome	TimePoints
Jumping and Landing (video analysis my jump 2 app ) Volleyball functional Sheppard test Vertical jump height (Vertec device)	day 0, 6 week, 10 week

Secondary Outcome

Outcome	TimePoints
Patellar tendinitis assessment ( Single leg decline squat [SLDS]with pain map) Jumping and Landing (video analysis my jump 2 app ) Volleyball functional Sheppard test Vertical jump height (Vertec device) Muscle strength ( Handheld dynamometer )	day 0, 6 week, 10 week

Target Sample Size

Total Sample Size="44"
Sample Size from India="44"
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)

20/12/2025

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="6"
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

Title : Assessing the effectiveness of 10-week plyometric training program in reducing dynamic risk factor for patellar tendinitis and on agility in amateur volleyball players.

Volleyball involves repetitive high load jumping, which predisposes to patellar tendinitis while plyometric training may improve neuromuscular control , tendon load tolerance , jump performance and agility. There is limited evidence in amateur players especially on horizontal component.

the aim is to assess the effectiveness of a 10-week plyometric training on dynamic risk factor for patellar tendinitis and agility with objective to examine its impact on this risk factors, vertical jump hight, agility and to compare it with a lower limb strengthening program.

This study includes 44 amateur volleyball players aged 18 to 28 years, 1 year or more playing experience , regular practice ( 3 day/ week ) and willing to participate randomly allocated to standard training plus plyometric or standard training plus lower limb strengthening for 10-weeks. Exclusion criteria include existing patellar tendinitis , other chronic knee or musculoskeletal condition , poor schedule adherence or lack of consent.

Outcome measures includes biomechanical jump and landing analysis , signal leg decline squat with pain map for patellar tendinitis test, vertical jump ( vertec device ) and Sheppard test for volleyball specific agility.

by systematically comparing a 10 week plyometric training with a structured lower limb strengthening regimen in amateur volleyball players, the study is expected to generate clinically relevant evidence to guide coaches and physiotherapist in designing targeted , evidence based training strategies for injury prevention and performance optimisation in this under studied amateur population.