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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Healthy Participants | Spinal manipulation |
| |
| Acute Low back pain participants | Spinal Manipulation |
| |
| Chronic low back pain participants | Spinal Manipulation |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Spinal Manipulation | Procedure | HVLA (High Velocity Low Amplitude) spinal manipulation directed at the lumbar spine and sacroiliac (SI) joints |
|
| Measure | Description | Time Frame |
|---|---|---|
| Muscle Response | Muscle activity of the lumbar spinal musculature as measured by both surface and indwelling electromyography. Total response expressed as a percentage of muscles "on". | During spinal manipulation at the time of testing |
| Muscle Activity Onset Delay | 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 | During spinal manipulation at the time of testing |
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Inclusion Criteria:
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
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community sample
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| Name | Affiliation | Role |
|---|---|---|
| Bradley S Davidson, PhD | University of Denver | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Denver | Denver | Colorado | 80208 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 27072513 | Result | Currie SJ, Myers CA, Krishnamurthy A, Enebo BA, Davidson BS. Methods of Muscle Activation Onset Timing Recorded During Spinal Manipulation. J Manipulative Physiol Ther. 2016 May;39(4):279-87. doi: 10.1016/j.jmpt.2016.03.001. Epub 2016 Apr 9. | |
| 27059250 | Result | Currie SJ, Myers CA, Durso C, Enebo BA, Davidson BS. The Neuromuscular Response to Spinal Manipulation in the Presence of Pain. J Manipulative Physiol Ther. 2016 May;39(4):288-93. doi: 10.1016/j.jmpt.2016.02.011. Epub 2016 Apr 6. |
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| ID | Term |
|---|---|
| D001416 | Back Pain |
| ID | Term |
|---|---|
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| ID | Term |
|---|---|
| D020393 | Manipulation, Spinal |
| ID | Term |
|---|---|
| D026201 | Musculoskeletal Manipulations |
| D026741 | Physical Therapy Modalities |
| D013812 | Therapeutics |
| D012046 | Rehabilitation |
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| 23206961 | Result | Myers CA, Enebo BA, Davidson BS. Optimized prediction of contact force application during side-lying lumbar manipulation. J Manipulative Physiol Ther. 2012 Nov-Dec;35(9):669-77. doi: 10.1016/j.jmpt.2012.10.010. |