Scapular Muscle Strengthening Combined With Core Stabilization Exercises in Telephone Operators With Neck Pain

March 17, 2026 updated by: Aqsa Majeed, University of Lahore
Scapular muscle strengthening combined with core stabilization exercises is an effective intervention for reducing neck pain in telephone operators. Prolonged sitting, forward head posture, and repetitive upper-limb use in this population often lead to scapular dyskinesis and poor trunk control, increasing cervical spine stress. Strengthening the scapular stabilizers (such as the middle and lower trapezius and serratus anterior) improves shoulder girdle alignment and reduces overload on cervical muscles. When combined with core stabilization exercises, which enhance trunk stability and postural control, overall biomechanical efficiency is improved. This combined approach has been shown to decrease pain intensity, improve neck function, enhance posture, and reduce work-related musculoskeletal strain in telephone operators with neck pain.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
90

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 1. Aged between 20 and 60 years(Kang, Im, & Kim, 2021) 2. Both male and female(Hetaimish et al., 2024) 3. Sitting job during an 8-hour shift and worked telephone, and documents.(Tabanfar, Sobhani, Safari Variani, & Varmazyar, 2023) 4. Employed 6 months ago 5. The patients included in this study if they have CVA equal or less than 50(Abd El-Azeim et al., 2022) 6. Neck pain with mild neck disability (NDI score 5-15)(Pawaria, Sudhan, & Kalra, 2019) 7. A score of 4-7 for the Visual Analog Scale (VAS)(Kang et al., 2021)

Exclusion Criteria:

  • 1. History of traumatic cervical spine injuries ,Inflammatory arthropathy 2. Infectious spondylitis, severe osteoporosis, cervical disc protrusion, cervical spine fractures or dislocations, previous cervical surgery, and intractable migraines.(Tian et al., 2025a) 3. intermittent neck pain, transient neck pain or any radiation of the pain to the upper extremity (neurological origin of the pain)

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: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Scapular Strengthening + Core Stabilization Group
Participants in this arm will receive a structured exercise program consisting of scapular muscle strengthening (targeting the middle and lower trapezius and serratus anterior) combined with core stabilization exercises. The intervention will be supervised and performed over the defined treatment period, with sessions conducted multiple times per week. The program aims to improve postural control, reduce cervical spine load, and decrease neck pain intensity while enhancing functional outcomes.
Other: Scapular Muscle Strengthening Combined with Core Stabilization Exercises
This intervention consists of a structured therapeutic exercise program focusing on strengthening the scapular stabilizing muscles (including the middle and lower trapezius and serratus anterior) combined with core stabilization exercises targeting the deep abdominal and lumbar muscles. The program is designed to improve postural alignment, enhance trunk and shoulder girdle stability, and reduce mechanical stress on the cervical spine. Exercises are performed under supervision with progressive intensity over the intervention period. The intervention is specifically tailored for telephone operators experiencing work-related neck pain.
Other: Conventional Neck Exercise Program
This intervention consists of conventional physiotherapy exercises commonly used for the management of work-related neck pain. The program includes cervical range-of-motion exercises, stretching of neck and shoulder muscles, and basic isometric strengthening of the cervical musculature. No specific scapular muscle strengthening or core stabilization exercises are included. The exercises are supervised and performed according to standard clinical practice guidelines for neck pain management, serving as a comparator to evaluate the added effects of scapular strengthening combined with core stabilization exercises.
Active Comparator: Conventional Exercise / Control Group
Participants in this arm will receive conventional neck exercises, including cervical range-of-motion, stretching, and basic strengthening exercises commonly prescribed for work-related neck pain. No specific scapular strengthening or core stabilization exercises will be included. This group serves as a comparison to evaluate the additional effects of combined scapular and core stabilization training.
Other: Scapular Muscle Strengthening Combined with Core Stabilization Exercises
This intervention consists of a structured therapeutic exercise program focusing on strengthening the scapular stabilizing muscles (including the middle and lower trapezius and serratus anterior) combined with core stabilization exercises targeting the deep abdominal and lumbar muscles. The program is designed to improve postural alignment, enhance trunk and shoulder girdle stability, and reduce mechanical stress on the cervical spine. Exercises are performed under supervision with progressive intensity over the intervention period. The intervention is specifically tailored for telephone operators experiencing work-related neck pain.
Other: Conventional Neck Exercise Program
This intervention consists of conventional physiotherapy exercises commonly used for the management of work-related neck pain. The program includes cervical range-of-motion exercises, stretching of neck and shoulder muscles, and basic isometric strengthening of the cervical musculature. No specific scapular muscle strengthening or core stabilization exercises are included. The exercises are supervised and performed according to standard clinical practice guidelines for neck pain management, serving as a comparator to evaluate the added effects of scapular strengthening combined with core stabilization exercises.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Neck Pain
Time Frame: 6 weeks
Neck disability index
6 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Lahore

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 (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 26, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 15, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 18, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 20, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 17, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Umama Jabbar

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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