Effects of Progressive Resistance Exercises Among Athletes With Hamstring Deficit After ACL Reconstruction

February 20, 2025 updated by: Riphah International University

Effects of Progressive Resistance Exercises on Range of Motion & Strength and Function Among Athletes With Hamstring Deficit After ACL Reconstruction

The goal of the study is to find out how mild home exercises (similar to usual care) and progressive strength training, which include neuromuscular exercise, affected knee joint function and HS muscle strength in individuals who has persistent HS muscle strength deficits 12-24 months after ACLR.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Detailed Description

The objective of the present study is to investigate whether individuals, who perform supervised progressive strength training including elements of neuromuscular exercise intervention (SNG) will achieve greater improvements in leg muscle power and greater improvements in knee function compared with individuals performing a homebased low-intensity weight-bearing exercise protocol. We hypothesize that supervised progressive strength training would be superior to a homebased low-intensity weight-bearing exercise protocol for regaining muscle strength and knee function. This study will impact society by promoting health, reducing healthcare costs, supporting productivity, and contributing to a more active and engaged community. Limited investigation exists regarding the durability of progressive resistance exercises in mitigating hamstring deficits post-ACL reconstruction and the personalized optimization of exercise protocols for individual athletes. Further exploration is needed for sustained benefits and tailored rehabilitation strategies.

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Pakistan
      • Lahore, Pakistan, 54770
        • Innovative Health Concept

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age between 18 - 30 years
  • 12-24 months post-surgery (ACL reconstruction)
  • Persistent maximal isometric knee flexor strength asymmetry (>10% leg-to-leg the difference, in the isometric testing angle of 90° knee flexion)

Exclusion Criteria:

  • Body mass index [BMI] more than 35
  • known lower limb pathology (including previous and/or concomitant knee injuries requiring surgical intervention to either knee)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Supervised progressive strength training with elements like (SNG)
Participants will be randomized to SNG and perform training sessions (60-70 minutes) twice weekly, over 12 weeks, commencing 8 exercises for the lower extremities in 3 sets of 10 repetitions with an intensity of 12 repetitions maximum. Individual progression, quality of exercise, number of sets, repetitions, and additional training weights will be monitored and adjusted throughout the intervention period by experienced physiotherapists
Other: Supervised progressive strength training including elements of neuromuscular exercise intervention (SNG)
Participants will be randomized to SNG and will perform training sessions (60-70 minutes) twice weekly, over a duration of 12 weeks, commencing 8 exercises for the lower extremities in 3 sets of 10 repetitions with an intensity of 12 repetitions maximum. Individual progression, quality of exercise, number of sets, repetitions, and additional training weights will be monitored
Experimental: home based low-intensity weight-bearing exercise protocol
Participants allocated to CON will receive written and verbal instructions regarding 4 home-based (low-intensity), weight-bearing exercises for the lower extremities, to be performed twice weekly. This intervention is designed to resemble usual care in cases where persistent knee muscle strength deficits would be discovered and considered a clinical issue.
Other: home based low-intensity weight-bearing exercise protocol.
Participants allocated to CON will receive written and verbal instructions regarding 4 home-based (low intensity), weight-bearing exercises for the lower extremities, to be performed twice weekly. This intervention is designed to resemble usual care in cases where persistent knee muscle strength deficits would be discovered and considered a clinical issue.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Limb Symmetry Index
Time Frame: 12 weeks
It is used for knee extensors and flexors strength. It is the strength ratio between the injured and uninjured knees. It is a common method of assessing strength and functional performance after ACLR.
12 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
H/Q ratio
Time Frame: 12 weeks
it is used to detect muscle imbalance, monitor knee joint stability, and indicate lower extremity injury prevention and rehabilitation.
12 weeks

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
KOOS questionnaire
Time Frame: 12 weeks
It is used to assess five outcomes: pain, activity of daily living, sport and recreation function, and knee-related quality of life.
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Riphah International University

Investigators

  • Principal Investigator: Hafiz Attiq ur Rehman, Riphah International University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 24, 2024

Primary Completion (Actual)

November 10, 2024

Study Completion (Estimated)

February 25, 2025

Study Registration Dates

First Submitted

February 20, 2025

First Submitted That Met QC Criteria

February 20, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

February 20, 2025

Last Verified

February 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • REC/RCR&AHS/24/0409

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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