The Relationship Between Transversus Abdominis Muscle Architecture and Upper Extremity Function in Patients With Chronic Low Back Pain

Recruiting now

Conditions studied: Low Back Pain, Functional Reach, Scapular Dyskinesis, Core Muscles, Ultrasound

In brief

Core stability is the ability to control the position and movement of the trunk for optimal production, transfer, and control of forces in the upper and lower extremities during functional activities. Studies have shown that TrA activation is delayed in individuals with low back pain. The relationship between core stability and the lower extremity has been frequently studied in the literature, and according to Kibler's 'Kinetic Chain' theory, loss of proximal stability is known to lead to dysfunction in distal segments; however, the relationship between the upper extremity and core stability is still unclear. The aim of our study is to investigate the upper extremity reach capacity and scapular stability of individuals with low back pain in relation to TrA involvement and to compare them with healthy individuals without low back pain.

Key facts

Study ID

NCT07474610

Run by

Ilayda Dilan Isik

People needed

90

Starts

2026-04-01

Expected to finish

2027-08-31

Last updated by the study team

2026-07-20

Who can join

Age: 18 and older, up to 45. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Being between 18-45 years of age.
• Having a normal Body Mass Index (BMI) (18.5 - 29.9 kg/m²).
• For the painful group, having pain for a minimum of 3 months and a minimum of 3/10 pain at rest or during activity. • Not having received medical treatment for back or shoulder pain in the last 12 months for healthy control examinations.

You may not qualify if…

• Having neurological diseases.
• Having a diagnosed pathology and/or severe pain in the upper extremity.
• Being a professional athlete.
• Being pregnant.
• Having advanced structural spinal deformities (scoliosis, kyphosis, etc.).
• Having undergone abdominal surgery (Cesarean section is not included).
• Having undergone spinal and/or lumbar surgery.

Where it is running

• GYM Center — Ankara, Turkey (Türkiye) (enrolling)

Full record on ClinicalTrials.gov

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