Do Gravity Boots Help for Low Back Pain?
No, gravity boots (inversion traction) are not recommended for low back pain management and are not supported by current clinical practice guidelines.
Guideline-Based Recommendations
The 2017 American College of Physicians clinical practice guideline for low back pain 1, 2 comprehensively reviewed nonpharmacologic therapies and does not include inversion traction or gravity boots among recommended treatments. The guideline specifically endorses:
- Exercise therapy
- Spinal manipulation
- Acupuncture
- Massage
- Yoga
- Tai chi
- Mindfulness-based stress reduction
- Psychological therapies
- Multidisciplinary rehabilitation
These interventions show small to moderate effects on chronic low back pain with acceptable safety profiles 1, 2.
Evidence on Gravity Boots
The only available study on gravity boots 3 from 1986 reveals significant concerns:
Cardiovascular Risks
- Blood pressure increased an average of 20 mm Hg during inversion and remained elevated throughout the 7-minute inversion period
- Heart rate patterns showed initial decrease during inversion followed by increase upon return to standing
- These cardiovascular changes make inversion contraindicated for patients with hypertension, cardiovascular disease, glaucoma, or increased intracranial pressure
Spinal Effects
- While some spinal traction occurred (increased L5-S2 distance), the clinical significance is unclear
- Decreased C7-T12 distance and thoracolumbar curve depth occurred, which may not be therapeutically beneficial
- No evidence demonstrates pain reduction or functional improvement
Tolerability
- Subjects reported significant discomfort with gravity boots compared to other inversion systems
- The 7-minute duration studied is impractical for routine therapeutic use
Alternative Evidence-Based Approaches
For addressing hamstring flexibility and low back pain (the implied goals of gravity boot use):
For hamstring flexibility improvement:
- Balance and hamstring training programs show effectiveness 4
- Clinical Pilates exercises improve lumbopelvic-hip flexibility 5
For chronic low back pain:
- Exercise-based interventions have moderate-quality evidence 1
- Hamstring tightness correlates with chronic low back pain 6, making targeted stretching programs more appropriate than passive inversion
Clinical Bottom Line
Gravity boots lack evidence for efficacy, pose cardiovascular risks, and are not included in evidence-based treatment algorithms for low back pain. Instead, pursue guideline-recommended therapies including supervised exercise programs, manual therapy, or mind-body interventions that have demonstrated safety and modest effectiveness 1, 2.