Chronic Low Back Pain, Low Back Pain (LBP), Non-specific Low Back Pain
Conditions
Keywords
Lumbar support belt, Elastic lumbar belt, Office workers, Workplace intervention, Presenteeism, Fatigue, Randomised controlled trial
Brief summary
Background: Low-back pain (LBP) is common among office workers and can reduce productivity and quality of life. Lumbar support belts are commonly used to manage LBP, but their effectiveness specifically for office workers remains uncertain. Aim: This study investigates whether wearing a commercially available lumbar support belt (Guardner Belt) can reduce low-back pain, decrease physical fatigue during computer work, and improve perceived work performance among office workers with chronic low-back pain. Methods: Thirty office workers with chronic nonspecific low-back pain were randomly assigned to either wear the lumbar support belt during work hours for four weeks or continue usual activities without the belt. Participants' pain, fatigue, and work performance were assessed before and after the intervention period.
Detailed description
Study Design: A single-centre, open-label, parallel-group randomised controlled trial conducted at a logistics company in Okinawa, Japan. Participants: Inclusion criteria: full-time office workers aged 20 to 65 years, chronic nonspecific low-back pain intensity ≥ 30 mm (100-mm visual analogue scale; VAS). Exclusion criteria: prior lumbar surgery, ongoing pharmacologic treatment for low-back pain, anticipated changes in job duties during the trial period. Interventions: * Belt Group: Participants wore a commercially available elastic lumbar support belt (Guardner Belt) sized according to waist circumference. Participants were instructed to wear the belt for at least 8 hours daily during their working hours over a 4-week period. * Control Group: Participants continued normal daily routines without any lumbar support belt. Primary Outcome Measures: Assessed at baseline and after 4 weeks of intervention: * Low-back pain intensity: Measured using a 100-mm Visual Analogue Scale (VAS). * Physical fatigue during computer work: Measured using a 100-mm VAS. * Work performance: Measured using the Single-Item Presenteeism Question (SPQ), scored from 0% (no productivity) to 100% (full productivity). Ethics: Ethical approval was retrospectively granted by the Ryusei Hospital Institutional Review Board (Approval Number 202502). Written informed consent was obtained from all participants.
Interventions
DEVICEGuardner Belt
The Guardner Belt is a commercially available elastic lumbar support belt designed to reduce low-back pain and improve posture. Participants wore the belt sized according to waist circumference for at least 8 hours per day during working hours for 4 weeks.
Sponsors
General Incorporated Foundation Ryukyuseimeisaiseikai, Ryusei Hospital.
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
20 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* • Full-time desk workers * Chronic nonspecific low-back pain (≥30 mm on a 100-mm visual analogue scale at baseline) * Age between 20 and 65 years
Exclusion criteria
* • Previous lumbar surgery * Currently receiving pharmacologic treatment for low-back pain * Planned job-duty changes during the study period
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Low Back Pain Intensity (VAS) | Baseline and Week 4 | Low back pain intensity assessed using a 100-mm Visual Analogue Scale (0 mm = no pain, 100 mm = worst imaginable pain). |
| Physical Fatigue During Computer Work (VAS) | Baseline and Week 4 | Physical fatigue during computer work assessed using a 100-mm Visual Analogue Scale (0 mm = no fatigue, 100 mm = extreme fatigue). |
| Self-rated Work Performance (SPQ) | Baseline and Week 4 | Self-rated work performance assessed using the Single-Item Presenteeism Question (0% = no productivity, 100% = full productivity). |
Countries
Japan
Outcome results
None listed