The Effect of Different Exercises on Craniovertebral Angle in Individuals With Forward Head Posture

NCT ID: NCT06947421

Last Updated: 2025-04-27

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: NA
• Total Enrollment: 44 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-04-16
• Study Completion Date: 2025-12-16

Brief Summary

Forward head posture (FHP) is a prevalent postural misalignment commonly attributed to prolonged exposure to poor ergonomic conditions and insufficient physical activity. This condition adversely affects craniovertebral angle (CVA), cervical muscle activity, and upper extremity function, ultimately compromising overall physical health and quality of life. Current literature highlights the corrective effects of McKenzie exercises on postural awareness and cervical alignment, while standard neck exercises are frequently employed to address muscular imbalances and alleviate posture-related pain and functional limitations. However, studies that directly compare these two exercise approaches in individuals with FHP particularly in terms of their short-term effects on craniovertebral angle, hand grip strength, and psychosocial outcomes remain scarce. Accordingly, the present study aims to fill this critical gap by conducting a multidimensional analysis of the immediate effects of McKenzie versus standard neck exercise programs in individuals with FHP, thereby contributing meaningful insights to clinical rehabilitation practices.

Detailed Description

Forward head posture (FHP) is a common postural misalignment characterized by the anterior positioning of the head relative to the trunk in the sagittal plane. It is frequently associated with poor ergonomic habits, prolonged screen time, heavy backpack use, and lack of physical activity. This postural deviation can lead to upper cervical hyperextension, lower cervical and upper thoracic flexion, increased muscle tension, and long-term dysfunctions in the musculoskeletal, neurological, and vascular systems.

The craniovertebral angle (CVA) is a commonly used and reliable method for evaluating FHP. A CVA less than 50 degrees is considered indicative of forward head posture. Current literature supports the use of exercise interventions to improve CVA and reduce the symptoms associated with postural abnormalities.

The McKenzie method is based on directional preference and repetitive movements, aiming to enhance postural awareness and spinal alignment. Standard neck exercises, frequently used in clinical practice, aim to improve muscular balance, cervical alignment, and reduce neck pain.

Although both exercise methods have shown individual effectiveness in improving posture and function, few studies have directly compared their effects on both structural and functional outcomes. Additionally, hand grip strength and psychosocial factors are often overlooked, despite their importance in evaluating upper extremity function and overall well-being in individuals with FHP.

This randomized, assessor-blinded clinical trial aims to compare the short-term effects of McKenzie exercises and standard neck exercises on craniovertebral angle, hand grip strength, and psychosocial status in individuals with forward head posture. The results will contribute to clinical knowledge regarding effective rehabilitation strategies for postural dysfunctions.

Conditions

Forward Head Posture

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

McKenzie Exercise Group (MG)

Participants in this group will follow a McKenzie-based cervical exercise program consisting of four specific movements: retraction, rotation, lateral flexion, and combined rotation.

Group Type: EXPERIMENTAL

McKenzie Exercise

Intervention Type: BEHAVIORAL

Exercises will be performed in seated or supine positions, 15 repetitions per session, twice daily, for a total duration of 6 weeks. The program will begin with physiotherapist-supervised sessions and continue at home with guidance via a digital training manual. Weekly follow-up and progress will be ensured through individual exercise diaries. Participants missing two consecutive days of exercise will be excluded from the study. Includes:

• Cervical retraction in sitting and supine positions
• Cervical rotation to both sides
• Lateral flexion of the neck
• Combined chin rotation toward the shoulder

Standard Neck Exercise Group (SG)

Participants in this group will follow a standard cervical postural correction program focused on strengthening deep cervical flexors and scapular retractors, and stretching cervical extensors and pectoralis muscles.

Group Type: EXPERIMENTAL

Standard Neck Exercise

Intervention Type: BEHAVIORAL

The protocol includes chin tucks, chin drop stretches, scapular retraction with resistance, and both unilateral and bilateral pectoral stretching. Exercises will be performed twice daily, 15 repetitions per session, over a period of 6 weeks. Exercise progression will be adapted biweekly based on participant tolerance. Includes:

• Chin tucks in supine with progressive hold durations
• Chin drop stretch in sitting with optional manual assistance
• Scapular retraction using theraband or weights
• Pectoral muscle stretching using doorway and seated techniques

Interventions

McKenzie Exercise

Exercises will be performed in seated or supine positions, 15 repetitions per session, twice daily, for a total duration of 6 weeks. The program will begin with physiotherapist-supervised sessions and continue at home with guidance via a digital training manual. Weekly follow-up and progress will be ensured through individual exercise diaries. Participants missing two consecutive days of exercise will be excluded from the study. Includes:

• Cervical retraction in sitting and supine positions
• Cervical rotation to both sides
• Lateral flexion of the neck
• Combined chin rotation toward the shoulder

Intervention Type: BEHAVIORAL

Standard Neck Exercise

The protocol includes chin tucks, chin drop stretches, scapular retraction with resistance, and both unilateral and bilateral pectoral stretching. Exercises will be performed twice daily, 15 repetitions per session, over a period of 6 weeks. Exercise progression will be adapted biweekly based on participant tolerance. Includes:

• Chin tucks in supine with progressive hold durations
• Chin drop stretch in sitting with optional manual assistance
• Scapular retraction using theraband or weights
• Pectoral muscle stretching using doorway and seated techniques

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• Individuals diagnosed with forward head posture, defined by a craniovertebral angle (CVA) of less than 50°, based on established diagnostic criteria
• Age between 18 and 30 years
• Pain intensity greater than 3 on the Visual Analog Scale (VAS)
• Mild to moderate neck disability, indicated by a Neck Disability Index (NDI) score below 15 out of 50
• Voluntary participation with signed informed consent

Exclusion Criteria

• Presence of medical contraindications to exercise
• Regular engagement in structured spinal exercise programs
• History of spinal surgery
• Diagnosis of cancer or other malignant conditions
• Presence of an implanted cardiac pacemaker
• Visual, auditory, or cognitive impairments that would prevent adherence to the exercise protocol

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Bahçeşehir University

OTHER

Sponsor Role: lead

Responsible Party

Esra BECENI

lecturer

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Pelin Pişirici, PhD

Role: STUDY_DIRECTOR

Bahcesehir University, Faculty of Health Sciences, Department of Physiotherapy

Esra Beceni, PhD Student

Role: PRINCIPAL_INVESTIGATOR

Bahcesehir University, Graduate Education Institute

Büşra Tamgüç, PhD Student

Role: STUDY_CHAIR

Bahcesehir University, Graduate Education Institute

Gülay Yalcin, PhD

Role: STUDY_CHAIR

Mudanya University, Faculty of Health Sciences, Department of Physiotherapy

Locations

Mudanya University

Bursa, , Turkey (Türkiye)

Countries

Turkey (Türkiye)

Other Identifiers

E-10840098-202.3.02-2206

Identifier Type: -

Identifier Source: org_study_id