Manipulation Effects on Abdominal Muscles

Not Applicable

Completed

• Conditions: Low Back Pain
• Interventions: Other: Lumbar Manipulation; Other: Sham manipulation

• Registration Number: NCT01745939
• Lead Sponsor: University of Nevada, Las Vegas

Brief Summary

The purpose of this study is to understand how different physical therapy interventions affect the use of certain abdominal muscles in patients with low back pain.

Detailed Description

Patients with low back pain will undergo ultrasound imaging of the lateral abdominal wall to measure resting and contracted thickness of the transversus abdominis muscle. Following the pre-intervention measurement, patients will receive one of two physical therapy interventions (side lying thrust joint manipulation or side lying non-thrust oscillations into slight rotation) which will have been randomly assigned. Immediately after intervention, ultrasound imaging will be repeated on the resting and contracted thickness of the transversus abdominis.

Study Timeline

• Study Start: 2012-11
• Study First Submitted: 2012-12-05
• Study First Submitted QC: 2012-12-07
• Study First Posted: 2012-12-10
• Primary Completion: 2014-08
• Study Completion: 2014-08
• Status Verified: 2014-11
• Last Update Submitted: 2014-11-03
• Last Update Posted: 2014-11-05

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 12

Inclusion Criteria

• Currently receiving physical therapy treatment for back pain or back pain symptoms
• 18-70 years of age
• Able to perform the abdominal drawing in maneuver

Exclusion Criteria

• Presence of a serious pathology
• Diagnosis of spinal stenosis or symptoms in both lower legs (changes in sensation, muscle weakness)
• Any history of low back surgery, rheumatoid arthritis, osteoporosis, osteopenia, or ankylosing spondylitis

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Lumbar manipulation	Lumbar Manipulation	Patients will receive thrust joint manipulation to their lumbar spine in side lying
Sham manipulation	Sham manipulation	Patients will receive oscillations into slight rotation, without cavitation, in side lying

Primary Outcome Measures

Name	Time	Method
Transversus abdominis thickness change	Baseline to immediately after the intervention (within 5 minutes)	Measurement of change in thickness from resting to contraction will be compared at baseline (pre-intervention) to immediately following the intervention (post-intervention). The study is looking at the immediate effects so there is no short-term or longer term follow up.

Secondary Outcome Measures

Name	Time	Method
Numeric Pain Rating Scale	Baseline to immediately after the intervention (within 5 minutes)	Rating of perceived pain will be compared at baseline (pre-intervention) to immediately following the intervention (post-intervention). The study is looking at the immediate effects so there is no short-term or longer term follow up.

Trial Locations

Locations (1)

University of Nevada, Las Vegas - Department of Physical Therapy; 🇺🇸 Las Vegas, Nevada, United States