Effects of different stretching methods on shoulder posture

Comparison of Immediate Effects of Different Stretching Methods for Pectoralis Minor Muscle on Scapula Position, Pectoralis Minor Muscle Length and Scapular Muscle Activation in Individuals With Shoulder Protraction

NA · Gazi University · NCT06307899

This study is testing which of three different stretching methods can help people with rounded shoulder posture improve their shoulder position and muscle length.

Quick facts

PhaseNA
Study typeInterventional
Enrollment25 (estimated)
Ages18 Years to 40 Years
SexAll
SponsorGazi University (other)
Locations1 site (Ankara, Çankaya)
Trial IDNCT06307899 on ClinicalTrials.gov

What this trial studies

This study aims to compare the immediate effects of three different stretching methods—unilateral corner stretching, manual stretching, and proprioceptive neuromuscular facilitation (PNF) stretching—on the pectoralis minor muscle in individuals with rounded shoulder posture. Participants will undergo each stretching method randomly, with sessions spaced 48 hours apart. Measurements of muscle length, scapula position, and muscle activation will be taken before and after each intervention by a blind evaluator to assess the effectiveness of each method.

Who should consider this trial

Good fit: Ideal candidates are individuals with shoulder protraction posture who have not undergone shoulder surgery.

Not a fit: Patients with cervical or shoulder pain, adhesive capsulitis, thoracic outlet syndrome, or a history of shoulder surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide effective stretching techniques to improve shoulder posture and reduce related discomfort.

How similar studies have performed: While similar studies have explored stretching techniques, this specific comparison of methods for pectoralis minor muscle activation is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Having a shoulder protraction posture
* Not having had a shoulder surgery before
* Agreeing to participate in the study

Exclusion Criteria:

* Cervical or shoulder pain
* Adhesive capsulitis
* Thoracic outlet syndrome
* Shoulder instability
* Shoulder surgery history
* Numbness or tingling in the upper extremity

Where this trial is running

Ankara, Çankaya

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Rounded Shoulder Posture, Pectoralis Minor, Stretching, Muscle Activation

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.