Effects of Different Verbal Instructions in Healthy Adults and Patients With Low Back Pain

NCT02513173 | Completed

• 1 other identifier: TWU17581
• Study Type: observational
• Target: 42
• Locations: 0 countries
• Sites: N/A

Brief Summary

Segmental stabilization exercise has been shown to be effective in the rehabilitation of low back pain (LBP). Due to the isometric nature of segmental stabilization exercise, manual therapists use various verbal instructions to elicit lumbar multifidus muscle contraction. The purpose of this study was to assess whether or not three verbal instructions would alter muscle thickness of the lumbar multifidus differently in asymptomatic individuals and patients with LBP. Three verbal instructions were selected for this study: (1) swell the muscle underneath the transducer, (2) draw your belly button in towards your spinal column, and (3) think about tilting your pelvis but without really doing it. Lumbar multifidus muscle thickness was determined using parasagittal ultrasound imaging. Measurements of muscle thickness were collected at rest and during verbal instructions from 21 asymptomatic adults and 21 patients with LBP. Percent changes of muscle thickness during contraction and at rest were compared between groups and across verbal instructions.

Conditions

Low Back Pain

Keywords

low back pain; verbal instruction; lumbar multifidus; ultrasound imaging; Muscle thickness

Outcome Measures

Primary Outcomes (1)

• Ultrasonographic muscle thickness measurement of lumbar multifidus

  Muscle thickness of lumbar multifidus was measured at rest and during contraction under each of 3 verbal instructions on two visits with an average of one week apart.

  Participants were measured and then followed-up one week later

Study Arms (2)

Low back pain group

No intervention

Control

No intervention

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Eligible participants are English-speaking adults 18 years of age or older, with or without low back pain.

You may qualify if:

• additional criteria for asymptomatic healthy adults include no existing LBP and no LBP in the past year.
• additional criteria for patient participants include existing LBP near the L5-S1 level with an average pain intensity score ≥ 2/10 (numeric pain rating scale of 0-10, 0 being no pain, 10 being unbearable pain).

You may not qualify if:

• previous low back surgery,
• systemic joint disease (e.g. rheumatoid arthritis),
• cancer of the lower quadrant,
• neurological disorders,
• allergic reaction to ultrasound gel, or
• inability to obtain testing positions (prone lying).

Sponsors & Collaborators

• Texas Woman's University: lead

MeSH Terms

Conditions

Low Back Pain

Condition Hierarchy (Ancestors)

Back Pain; Pain; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 24, 2015
• First Posted: July 31, 2015
• Study Start: January 1, 2014
• Primary Completion: January 1, 2015
• Study Completion: January 1, 2015
• Last Updated: October 18, 2021

Record last verified: 2015-07