Lumbar unloading maneuvers during repeated forward bending
Official title: The Effect of Unloading Maneuvers During Spinal Flexion Exposure
Run by University of Primorska · NCT07116720 · Data updated 2026-11-12
This will see if doing specific lumbar unloading maneuvers during repeated forward bending changes trunk mechanics and muscle activity in workers with mixed sitting-and-standing jobs.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 30 Years to 55 Years |
| Sex | Men only |
| Enrollment | 30 (estimated) |
| Sponsor | University of Primorska Academic / other |
| Locations | 1 site (Izola, Primorska) |
| Status | Recruiting |
| Started | August 25, 2025 |
| Main results expected | September 30, 2025 |
| Study ends | October 15, 2025 |
| Registry record updated | August 12, 2025 |
| Trial ID | NCT07116720 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are occupational workers with predominantly non-static jobs (mixed sitting and standing) who have no history of chronic or recent acute low back pain, no recent hip injury or prior spine/hip surgery, no diagnosed hypermobility, and who are not engaged in high-intensity resistance training or sports involving repetitive spinal flexion.
✕Probably not a fit
People with chronic or recent acute low back pain, prior spine/hip surgery, diagnosed hypermobility, recent hip injury, or those who regularly perform high-intensity resistance training or repetitive spinal-flexion sports are unlikely to benefit and are excluded.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This experimental interventional protocol will enroll 30 occupational workers with predominantly non-static jobs. All participants complete a 60-minute intermittent spinal flexion protocol with rest periods; participants in the intervention group perform lumbar unloading maneuvers during those rests while controls rest normally. Trunk mechanical and neuromuscular properties are measured before and after the protocol to capture acute changes. The approach aims to identify whether unloading during repeated flexion alters immediate biomechanical and muscle responses.
Why it matters
Potential benefit: If effective, unloading maneuvers could reduce harmful acute changes in trunk mechanics and muscle activity that contribute to work-related low back problems.
How similar studies have gone: Prior laboratory studies have reported biomechanical and neuromuscular changes with unloading-type maneuvers, but clinical benefits for preventing low back problems remain limited and not well established.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Occupational workers with a predominantly non static job (e.g. combination of sitting and standing) Exclusion Criteria: * History of chronic low back pain * Episode of acute low back pain * Hip injury in the past six months * Previous spine, pelvis or hip surgery * Hypermobility, diagnosed with the Beighton score * High intensity resistance training (\> 75 % of 1 repetition maximum) more than two times a week * Sporting or recreational activities, that include repetitive spinal flexion or maintenance of a flexed posture (for example cycling or rowing).
Where it's running
-
Faculty of Health Sciences, University of Primorska
Izola, Primorska, Slovenia Recruiting
Study contacts
- Study coordinator: Matej Voglar, PhD
- Email: matej.voglar@fvz.upr.si
- Phone: 0038656635803
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.