Muscle Activation Characteristics During Spinal Manipulation in Healthy and Low Back Pain Participants

Completed

• Conditions: Back Pain
• Interventions: Procedure: Spinal Manipulation

• Registration Number: NCT03483714
• Lead Sponsor: University of Denver

Brief Summary

To characterize muscle activity through electromyography (EMG) of the lumbar spine during high velocity, low amplitude (HVLA) spinal manipulation according to parameters of practitioner contact (location, applied force) in healthy participants and two categories of low back pain participants.

Detailed Description

Not available

Study Timeline

• Study Start: 2011-02-01
• Primary Completion: 2015-11-05
• Study Completion: 2015-11-05
• Status Verified: 2018-03
• Study First Submitted: 2018-03-11
• Study First Submitted QC: 2018-03-28
• Last Update Submitted: 2018-03-28
• Study First Posted: 2018-03-30
• Last Update Posted: 2018-03-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• male and female participants ages 18 to 55 years old

Exclusion Criteria

Active Worker's Compensation claim related to low back pain episode Active personal injury case related to low back pain episode Currently taking muscle relaxers, steroids, or narcotics

• Body mass index > 30 kg/m2
• Active cancer process
• Active infection
• Pregnancy
• High risk of osteoporosis assessed using the World Health Organization Fracture Risk Assessment Tool (included in submission)
• Osteogenic conditions (see screening questionnaire)
• Premature menopause
• Latex Allergies
• Lumbar spine or pelvic surgery
• Past spinal trauma producing spinal fracture

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Healthy Participants	Spinal Manipulation	Spinal manipulation
Acute Low back pain participants	Spinal Manipulation	Spinal Manipulation
Chronic low back pain participants	Spinal Manipulation	Spinal Manipulation

Primary Outcome Measures

Name	Time	Method
Muscle Response	During spinal manipulation at the time of testing	Muscle activity of the lumbar spinal musculature as measured by both surface and indwelling electromyography. Total response expressed as a percentage of muscles "on".
Muscle Activity Onset Delay	During spinal manipulation at the time of testing	Muscle activity of the lumbar spinal musculature as measured by both surface and indwelling electromyography. Time delay between the manipulation force and the muscle activity

Trial Locations

Locations (1)

University of Denver; 🇺🇸 Denver, Colorado, United States