Comparing Two Muscle Relaxation Techniques for Neck Pain (PRT-PIR-LS)

June 8, 2026 updated by: Dr Waqar Younas, University of Faisalabad

Comparative Effectiveness of Positional Release Technique and Post Isometric Relaxation on Pain, ROM and Functional Disability in Patient With Levator Scapulae Tightness

Levator scapulae muscle tightness is a common cause of neck pain due to poor posture. This study compares two manual therapy techniques: Positional Release Technique (PRT) and Post Isometric Relaxation (PIR). The goal is to determine which technique is more effective at reducing pain, improving neck range of motion, and decreasing functional disability in patients with this condition. Participants will be randomly assigned to receive either PRT or PIR for 4 weeks

Study Overview

Detailed Description

This is a double-blind, randomized clinical trial. A sample of 44 participants aged 25-40 with levator scapulae tightness will be recruited from hospitals in Faisalabad. Participants will be randomly assigned to two groups (n=22 each). Group A will receive the Positional Release Technique (PRT) involving a 90-second hold of the scapula in a specific position. Group B will receive Post Isometric Relaxation (PIR) involving a 10-second contraction followed by a 10-second stretch. Both groups will receive a 10-minute hot pack before their respective techniques. Interventions will occur 3 times per week for 4 weeks (12 sessions total). Outcome measures include the Numeric Pain Rating Scale (NPRS), cervical goniometry, and the Neck Disability Index (NDI), measured at baseline and after 4 weeks

Study Type

Interventional

Enrollment (Actual)

44

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

    • Punjab Province
      • Faisalabad, Punjab Province, Pakistan, 38000
        • The University of Faisalabad

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 25 to 40 years.
  • Both male and female.
  • Presence of a trigger point in levator scapulae (palpable tender spot with jump sign).
  • Score greater than 20% on the Neck Disability Index.
  • Unilateral non-specific neck pain.
  • Confirmation of trigger point via algometer.

Exclusion Criteria:

  • History of trauma or fracture to the scapula or cervical spine.
  • Pregnancy.
  • Previous cervical spine surgery.
  • Diagnosis of cancer, cardiac condition, or infectious disease.
  • Specific neck pathology (e.g., disc prolapse, nerve root compression, whiplash).

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: Positional Release Technique (PRT)
Patient lies prone. The therapist palpates the levator scapulae and uses the far hand to translate the scapula upward and apply rotation. The superior angle of the scapula is tilted downward. This position is held for 90 seconds. 10 repetitions for 3 sets per session
Patient lies prone. The therapist palpates the levator scapulae and uses the far hand to translate the scapula upward and apply rotation. The superior angle of the scapula is tilted downward. This position is held for 90 seconds. 10 repetitions for 3 sets per session.
Active Comparator: Post Isometric Relaxation (PIR)
Patient lies supine. The therapist stabilizes the shoulder and supports the neck. The patient performs an isometric contraction by moving the head back against resistance for 10 seconds. After relaxation, a passive stretch is applied for 10 seconds. 10 repetitions for 3 sets per session.
Patient lies supine. The therapist stabilizes the shoulder and supports the neck. The patient performs an isometric contraction by moving the head back against resistance for 10 seconds. After relaxation, a passive stretch is applied for 10 seconds. 10 repetitions for 3 sets per session.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Pain Intensity
Time Frame: Baseline and at 4 weeks (post-intervention)
Measured using the Numeric Pain Rating Scale (NPRS). Participants rate their average neck pain on an 11-point scale where 0 = 'no pain' and 10 = 'worst imaginable pain'
Baseline and at 4 weeks (post-intervention)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Cervical Range of Motion
Time Frame: Baseline and at 4 weeks (post-intervention)
Measured using a universal goniometer. Active range of motion will be assessed for cervical flexion, extension, lateral flexion, and rotation, measured in degrees
Baseline and at 4 weeks (post-intervention)
Change in Functional Disability
Time Frame: Baseline and at 4 weeks (post-intervention)
: Measured using the Neck Disability Index (NDI), a 10-item questionnaire. Total scores range from 0 (no disability) to 50 (complete disability), reported as a percentage
Baseline and at 4 weeks (post-intervention)

Collaborators and Investigators

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

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)

February 15, 2026

Primary Completion (Estimated)

June 15, 2026

Study Completion (Estimated)

July 10, 2026

Study Registration Dates

First Submitted

June 8, 2026

First Submitted That Met QC Criteria

June 8, 2026

First Posted (Actual)

June 12, 2026

Study Record Updates

Last Update Posted (Actual)

June 12, 2026

Last Update Submitted That Met QC Criteria

June 8, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 2024-MS-PT-059
  • TUF/EIRB/ 216 /26 (Other Identifier: ethical institutional review board, The University of Faisalabad)

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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