NCT05486858

Diaphragm Function in Low Back Pain People

Differencies in the Contraction Ratio of Diaphragm Muscle Between Low Back Pain and Asymptomatic Individuals.

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 350 (estimated)
• Sponsor: Szeged University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

Pathomechanism of nonspecific low back pain is not clear for the researchers yet. Our aim is to evaluate the function of one of the stabilizer muscles of the low back area. Diaphragm's postural function is evident. However, we do not understand its changes of function in low back pain. Postural function of diaphragm was screened in supine position and in sitting too in a relaxed and in a contracted state. The thickness of diaphragm was measured and contraction ratio was calculated. Additionally, the stability limits of the trunk were measured. We were curios about the differencies in contraction ratio between asymptomatic and low back pain individuals.

Detailed description

Pathomechanism of nonspecific low back pain is not clear for the researchers yet. Our aim is to evaluate the function of one of the stabilizer muscles of the low back area. Diaphragm's postural function is evident. However, we do not understand its changes of function in low back pain. The postural function of diaphragm was screened with Zonare Zone Ultrasound System in supine position and in sitting too in a relaxed and in a contracted state. The thickness of diaphragm was measured by using an elecric caliper of the ultrasound device and the contraction ratio was calculated. Additionally, the stability limits of the trunk were measured with sitting functional reach and sitting lateral reach tests. We were curios about the differencies in contraction ratio between asymptomatic and low back pain individuals.

Conditions

• Low Back Pain
• Low Back Pain, Mechanical

Interventions

Type	Name	Description
OTHER	MSK ultrasonograpy	MSK ultrasonography was used to measure the thickness of diaphragm muscle in supine and sitting position and in a relaxed and in a contracted state.
OTHER	sitting Functional and Lateral Reach Test	Sitting reach tests were used to measure the stability limits of the trunk in different directions. Functional reach test is for testing the forward direction and lateral reach tests are for testing the right and the left directions.

Timeline

• Start date: 2021-02-08
• Primary completion: 2022-08-15
• Completion: 2025-02-08
• First posted: 2022-08-04
• Last updated: 2022-08-04

Locations

1 site across 1 country: Hungary