Low Back Pain
Conditions
Keywords
Randomized controlled trial, Low back pain, Spinal manipulative therapy, Spinal manipulation, Osteopathic manipulation, Osteopathic medicine, Physical therapy modalities
Brief summary
The purpose of this study is to determine whether osteopathic manipulative treatment (a type of spinal manipulative therapy used by osteopathic physicians) and ultrasound physical therapy are effective in the treatment of chronic low back pain.
Detailed description
The purpose of this study is to determine whether osteopathic manipulative treatment (a type of spinal manipulative therapy used by osteopathic physicians) and ultrasound physical therapy are effective in the treatment of chronic low back pain. This study uses a 2X2 factorial design to test the hypotheses.
Interventions
Active osteopathic manipulation (OMT) and active ultrasound physical therapy (UST)
Sham osteopathic manipulation (OMT) and active ultrasound physical therapy (UST)
Active osteopathic manipulation (OMT) and sham ultrasound physical therapy (UST)
Sham osteopathic manipulation (OMT) and sham ultrasound physical therapy (UST)
Sponsors
Study design
Eligibility
Inclusion criteria
* Must give a positive response to the question: Have you had low back pain constantly or on most days for the last three months? * Must identify the low back as the primary site of pain * Must agree to not receive any of the following outside of the study during the period of participation: osteopathic manipulative treatment, chiropractic adjustment (including mobilization or manipulation), physical therapy * Women must not be pregnant or plan to become pregnant during the period of study participation (a negative pregnancy test and willingness to maintain an acceptable method of contraception will be required)
Exclusion criteria
* History of any of the following conditions which may be underlying causes of low back symptoms: cancer, spinal osteomyelitis, spinal fracture, herniated disc, ankylosing spondylitis, cauda equina syndrome * History of surgery involving the low back within the past year or planned low back surgery in the future * History of receiving Workers' Compensation benefits within the past three months * Involvement in current litigation relating to back problems * Current pregnancy or plan to become pregnant during the course of participation in the study * Any of the following that may limit a provider's choice of osteopathic manipulative treatment techniques or hamper compliance with the study protocol: angina or congestive heart failure symptoms that occur at rest or with minimal activity, history of a stroke or transient ischemic attack within the past year * Any of the following that may represent potential contraindications to receiving ultrasound physical therapy: implantation of a cardiac pacemaker, implantation of artificial joints or other biomedical devices, active bleeding or infection in the low back, pregnancy * Use of intravenous, intramuscular, or oral corticosteroids within the past month * History of osteopathic manipulative treatment, chiropractic adjustment, or physical therapy within the past three months or on more than three occasions during the past year * Practitioner or student of any of the following: osteopathic medicine (D.O.) allopathic medicine (M.D.), chiropractic (D.C.), physical therapy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Visual Analogue Scale Score for Pain Over 12 Weeks (OMT vs Sham OMT) | 12 weeks | Comparison of the number (proportion) of participants in each study group who achieve a substantial improvement in low back pain over 12 weeks as determined by at least a 40-mm reduction (-40 mm) on the visual analogue scale score for pain compared with the baseline score. Changes in the visual analogue scale scores for pain over 12 weeks may potentially range from a 100-mm reduction (-100 mm) to a 100-mm increase (+100). Any reduction (negative score) represents an improvement in low back pain (i.e., a better outcome), while any increase (positive score) represents a worsening of low back pain (i.e., a worse outcome). However, only those better outcomes represented by change scores less than or equal to -40 mm are considered to represent substantial improvement in low back pain, which is the primary outcome measure of this study. For analyses wherein floor effects are important, the 40-mm reduction threshold for substantial improvement may be replaced by 50% reduction (-50%). |
| Change in Visual Analogue Scale Score for Pain Over 12 Weeks (Active UST vs Sham UST) | 12 weeks | Comparison of the number (proportion) of participants in each study group who achieve a substantial improvement in low back pain over 12 weeks as determined by at least a 40-mm reduction (-40 mm) on the visual analogue scale score for pain compared with the baseline score. Changes in the visual analogue scale scores for pain over 12 weeks may potentially range from a 100-mm reduction (-100 mm) to a 100-mm increase (+100). Any reduction (negative score) represents an improvement in low back pain (i.e., a better outcome), while any increase (positive score) represents a worsening of low back pain (i.e., a worse outcome). However, only those better outcomes represented by change scores less than or equal to -40 mm are considered to represent substantial improvement in low back pain, which is the primary outcome measure of this study. For analyses wherein floor effects are important, the 40-mm reduction threshold for substantial improvement may be replaced by 50% reduction (-50%). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 12) | 12 weeks | Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning. |
| Roland Morris Disability Questionnaire (UST and Sham UST - Week 4) | 4 weeks | Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning. |
| Roland Morris Disability Questionnaire (UST and Sham UST - Week 8) | 8 weeks | Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning. |
| Roland Morris Disability Questionnaire (UST and Sham UST - Week 12) | 12 weeks | Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning. |
| Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 4) | 4 weeks | The general health scale ranges from 0 to 100, with higher scores representing better general health. |
| Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 8) | 8 weeks | The general health scale ranges from 0 to 100, with higher scores representing better general health. |
| Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 12) | 12 weeks | The general health scale ranges from 0 to 100, with higher scores representing better general health. |
| Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 4) | 4 Weeks | The general health scale ranges from 0 to 100, with higher scores representing better general health. |
| Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 8) | 8 Weeks | The general health scale ranges from 0 to 100, with higher scores representing better general health. |
| Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 12) | 12 Weeks | The general health scale ranges from 0 to 100, with higher scores representing better general health. |
| Work Disability (OMT and Sham OMT - Week 4) | 4 weeks | Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain. |
| Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 4) | 4 weeks | Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning. |
| Work Disability (OMT and Sham OMT - Week 12) | 12 weeks | Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain. |
| Work Disability (UST and Sham UST - Week 4) | 4 weeks | Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain. |
| Work Disability (UST and Sham UST - Week 8) | 8 weeks | Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain. |
| Work Disability (UST and Sham UST - Week 12) | 12 weeks | Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain. |
| Satisfaction With Back Care (OMT and Sham OMT - Week 4) | 4 weeks | Subjects who reported being very satisfied with back care |
| Satisfaction With Back Care (OMT and Sham OMT - Week 8) | 8 weeks | Subjects who reported being very satisfied with back care |
| Satisfaction With Back Care (OMT and Sham OMT - Week 12) | 12 weeks | Subjects who reported being very satisfied with back care |
| Satisfaction With Back Care (UST and Sham UST - Week 4) | 4 weeks | Subjects who reported being very satisfied with back care |
| Satisfaction With Back Care (UST and Sham UST - Week 8) | 8 weeks | Subjects who reported being very satisfied with back care |
| Satisfaction With Back Care (UST and Sham UST - Week 12) | 12 weeks | Subjects who reported being very satisfied with back care |
| Work Disability (OMT and Sham OMT - Week 8) | 8 weeks | Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain. |
| Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 8) | 8 weeks | Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning. |
Countries
United States
Participant flow
Recruitment details
A total of 455 participants were recruited from the Dallas-Fort Worth, Texas metroplex from August 2006 to September 2010 through newspaper advertisements, community agencies, and medical clinics, excluding OMT specialty clinics.
Pre-assignment details
Participants were randomized after their study eligibility was confirmed by both telephonic and clinical screening examinations.
Participants by arm
| Arm | Count |
|---|---|
| OMT + UST Active osteopathic manipulation and active ultrasound physical therapy | 115 |
| Sham OMT + UST Sham osteopathic manipulation and active ultrasound physical therapy | 118 |
| OMT + Sham UST Active osteopathic manipulation and sham ultrasound physical therapy | 115 |
| Sham OMT + Sham UST Sham osteopathic manipulation and sham ultrasound physical therapy | 107 |
| Total | 455 |
Baseline characteristics
| Characteristic | Sham OMT + UST | OMT + Sham UST | OMT + UST | Sham OMT + Sham UST | Total |
|---|---|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 1 Participants | 3 Participants | 4 Participants | 2 Participants | 10 Participants |
| Age, Categorical Between 18 and 65 years | 117 Participants | 112 Participants | 111 Participants | 105 Participants | 445 Participants |
| Age, Continuous | 39.19 years STANDARD_DEVIATION 11.9 | 41.97 years STANDARD_DEVIATION 12.58 | 40.50 years STANDARD_DEVIATION 13.05 | 41.38 years STANDARD_DEVIATION 12.99 | 40.74 years STANDARD_DEVIATION 12.63 |
| Region of Enrollment United States | 118 participants | 115 participants | 115 participants | 107 participants | 455 participants |
| Sex: Female, Male Female | 68 Participants | 78 Participants | 66 Participants | 72 Participants | 284 Participants |
| Sex: Female, Male Male | 50 Participants | 37 Participants | 49 Participants | 35 Participants | 171 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk |
|---|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — | — / — |
| other Total, other adverse events | 6 / 115 | 5 / 118 | 4 / 115 | 3 / 107 |
| serious Total, serious adverse events | 1 / 115 | 2 / 118 | 5 / 115 | 1 / 107 |
Outcome results
Change in Visual Analogue Scale Score for Pain Over 12 Weeks (Active UST vs Sham UST)
Comparison of the number (proportion) of participants in each study group who achieve a substantial improvement in low back pain over 12 weeks as determined by at least a 40-mm reduction (-40 mm) on the visual analogue scale score for pain compared with the baseline score. Changes in the visual analogue scale scores for pain over 12 weeks may potentially range from a 100-mm reduction (-100 mm) to a 100-mm increase (+100). Any reduction (negative score) represents an improvement in low back pain (i.e., a better outcome), while any increase (positive score) represents a worsening of low back pain (i.e., a worse outcome). However, only those better outcomes represented by change scores less than or equal to -40 mm are considered to represent substantial improvement in low back pain, which is the primary outcome measure of this study. For analyses wherein floor effects are important, the 40-mm reduction threshold for substantial improvement may be replaced by 50% reduction (-50%).
Time frame: 12 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Change in Visual Analogue Scale Score for Pain Over 12 Weeks (Active UST vs Sham UST) | 32 participants |
| Sham OMT | Change in Visual Analogue Scale Score for Pain Over 12 Weeks (Active UST vs Sham UST) | 28 participants |
Change in Visual Analogue Scale Score for Pain Over 12 Weeks (OMT vs Sham OMT)
Comparison of the number (proportion) of participants in each study group who achieve a substantial improvement in low back pain over 12 weeks as determined by at least a 40-mm reduction (-40 mm) on the visual analogue scale score for pain compared with the baseline score. Changes in the visual analogue scale scores for pain over 12 weeks may potentially range from a 100-mm reduction (-100 mm) to a 100-mm increase (+100). Any reduction (negative score) represents an improvement in low back pain (i.e., a better outcome), while any increase (positive score) represents a worsening of low back pain (i.e., a worse outcome). However, only those better outcomes represented by change scores less than or equal to -40 mm are considered to represent substantial improvement in low back pain, which is the primary outcome measure of this study. For analyses wherein floor effects are important, the 40-mm reduction threshold for substantial improvement may be replaced by 50% reduction (-50%).
Time frame: 12 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Change in Visual Analogue Scale Score for Pain Over 12 Weeks (OMT vs Sham OMT) | 40 participants |
| Sham OMT | Change in Visual Analogue Scale Score for Pain Over 12 Weeks (OMT vs Sham OMT) | 20 participants |
Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 12)
The general health scale ranges from 0 to 100, with higher scores representing better general health.
Time frame: 12 weeks
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 12) | 72 SF-36 General Health Score |
| Sham OMT | Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 12) | 72 SF-36 General Health Score |
Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 4)
The general health scale ranges from 0 to 100, with higher scores representing better general health.
Time frame: 4 weeks
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 4) | 71 SF-36 General Health Score |
| Sham OMT | Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 4) | 72 SF-36 General Health Score |
Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 8)
The general health scale ranges from 0 to 100, with higher scores representing better general health.
Time frame: 8 weeks
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 8) | 72 SF-36 General Health Score |
| Sham OMT | Medical Outcomes Study SF-36 Health Survey (OMT and Sham OMT - Week 8) | 72 SF-36 General Health Score |
Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 12)
The general health scale ranges from 0 to 100, with higher scores representing better general health.
Time frame: 12 Weeks
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 12) | 72 SF-36 General Health Score |
| Sham OMT | Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 12) | 74 SF-36 General Health Score |
Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 4)
The general health scale ranges from 0 to 100, with higher scores representing better general health.
Time frame: 4 Weeks
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 4) | 72 SF-36 General Health Score |
| Sham OMT | Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 4) | 72 SF-36 General Health Score |
Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 8)
The general health scale ranges from 0 to 100, with higher scores representing better general health.
Time frame: 8 Weeks
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 8) | 72 SF-36 General Health Score |
| Sham OMT | Medical Outcomes Study SF-36 Health Survey (UST and Sham UST - Week 8) | 72 SF-36 General Health Score |
Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 12)
Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning.
Time frame: 12 weeks
Population: Week 12 Data
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 12) | 2 RMDQ Scale |
| Sham OMT | Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 12) | 3 RMDQ Scale |
Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 4)
Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning.
Time frame: 4 weeks
Population: Week 4 Data
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 4) | 4 RMDQ Scale |
| Sham OMT | Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 4) | 5 RMDQ Scale |
Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 8)
Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning.
Time frame: 8 weeks
Population: Week 8 Data
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 8) | 3 RMDQ Scale |
| Sham OMT | Roland Morris Disability Questionnaire (OMT and Sham OMT - Week 8) | 3 RMDQ Scale |
Roland Morris Disability Questionnaire (UST and Sham UST - Week 12)
Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning.
Time frame: 12 weeks
Population: Week 12 Data
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Roland Morris Disability Questionnaire (UST and Sham UST - Week 12) | 3 RMDQ Scale |
| Sham OMT | Roland Morris Disability Questionnaire (UST and Sham UST - Week 12) | 3 RMDQ Scale |
Roland Morris Disability Questionnaire (UST and Sham UST - Week 4)
Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning.
Time frame: 4 weeks
Population: Week 4 Data
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Roland Morris Disability Questionnaire (UST and Sham UST - Week 4) | 4 RMDQ Scale |
| Sham OMT | Roland Morris Disability Questionnaire (UST and Sham UST - Week 4) | 5 RMDQ Scale |
Roland Morris Disability Questionnaire (UST and Sham UST - Week 8)
Overall scores range from 0 to 24, which higher scores representing greater deficits in back-specific functioning.
Time frame: 8 weeks
Population: Week 8 Data
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Active OMT | Roland Morris Disability Questionnaire (UST and Sham UST - Week 8) | 3 RMDQ Scale |
| Sham OMT | Roland Morris Disability Questionnaire (UST and Sham UST - Week 8) | 4 RMDQ Scale |
Satisfaction With Back Care (OMT and Sham OMT - Week 12)
Subjects who reported being very satisfied with back care
Time frame: 12 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Satisfaction With Back Care (OMT and Sham OMT - Week 12) | 143 participants |
| Sham OMT | Satisfaction With Back Care (OMT and Sham OMT - Week 12) | 92 participants |
Satisfaction With Back Care (OMT and Sham OMT - Week 4)
Subjects who reported being very satisfied with back care
Time frame: 4 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Satisfaction With Back Care (OMT and Sham OMT - Week 4) | 109 participants |
| Sham OMT | Satisfaction With Back Care (OMT and Sham OMT - Week 4) | 71 participants |
Satisfaction With Back Care (OMT and Sham OMT - Week 8)
Subjects who reported being very satisfied with back care
Time frame: 8 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Satisfaction With Back Care (OMT and Sham OMT - Week 8) | 129 participants |
| Sham OMT | Satisfaction With Back Care (OMT and Sham OMT - Week 8) | 84 participants |
Satisfaction With Back Care (UST and Sham UST - Week 12)
Subjects who reported being very satisfied with back care
Time frame: 12 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Satisfaction With Back Care (UST and Sham UST - Week 12) | 120 participants |
| Sham OMT | Satisfaction With Back Care (UST and Sham UST - Week 12) | 115 participants |
Satisfaction With Back Care (UST and Sham UST - Week 4)
Subjects who reported being very satisfied with back care
Time frame: 4 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Satisfaction With Back Care (UST and Sham UST - Week 4) | 87 participants |
| Sham OMT | Satisfaction With Back Care (UST and Sham UST - Week 4) | 93 participants |
Satisfaction With Back Care (UST and Sham UST - Week 8)
Subjects who reported being very satisfied with back care
Time frame: 8 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Satisfaction With Back Care (UST and Sham UST - Week 8) | 107 participants |
| Sham OMT | Satisfaction With Back Care (UST and Sham UST - Week 8) | 106 participants |
Work Disability (OMT and Sham OMT - Week 12)
Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain.
Time frame: 12 weeks
Population: Lost 1 or more days of work in past 4 weeks because of low back pain.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Work Disability (OMT and Sham OMT - Week 12) | 12 Participants who reported lost work days |
| Sham OMT | Work Disability (OMT and Sham OMT - Week 12) | 8 Participants who reported lost work days |
Work Disability (OMT and Sham OMT - Week 4)
Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain.
Time frame: 4 weeks
Population: Lost 1 or more days of work in past 4 weeks because of low back pain.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Work Disability (OMT and Sham OMT - Week 4) | 11 Participants who reported lost work days |
| Sham OMT | Work Disability (OMT and Sham OMT - Week 4) | 14 Participants who reported lost work days |
Work Disability (OMT and Sham OMT - Week 8)
Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain.
Time frame: 8 weeks
Population: Lost 1 or more days of work in past 4 weeks because of low back pain.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Work Disability (OMT and Sham OMT - Week 8) | 7 Participants who reported lost work days |
| Sham OMT | Work Disability (OMT and Sham OMT - Week 8) | 20 Participants who reported lost work days |
Work Disability (UST and Sham UST - Week 12)
Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain.
Time frame: 12 weeks
Population: Lost 1 or more days of work in past 4 weeks because of low back pain.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Work Disability (UST and Sham UST - Week 12) | 14 Participants who reported lost work days |
| Sham OMT | Work Disability (UST and Sham UST - Week 12) | 6 Participants who reported lost work days |
Work Disability (UST and Sham UST - Week 4)
Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain.
Time frame: 4 weeks
Population: Lost 1 or more days of work in past 4 weeks because of low back pain.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Work Disability (UST and Sham UST - Week 4) | 18 Participants who reported lost work days |
| Sham OMT | Work Disability (UST and Sham UST - Week 4) | 7 Participants who reported lost work days |
Work Disability (UST and Sham UST - Week 8)
Number of participants who reported losing one or more work days in the past 4 weeks because of low back pain.
Time frame: 8 weeks
Population: Lost 1 or more days of work in past 4 weeks because of low back pain.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Active OMT | Work Disability (UST and Sham UST - Week 8) | 19 Participants who reported lost work days |
| Sham OMT | Work Disability (UST and Sham UST - Week 8) | 8 Participants who reported lost work days |