Yes, lumbar traction is generally beneficial for an L5–S1 disc bulge — it reduces intradiscal pressure at that specific level, which can relieve the nerve compression responsible for lower back pain and radiating leg symptoms.

Mechanical lumbar traction applied in a horizontal position removes axial load from the L5–S1 segment entirely, creating measurable intervertebral space and allowing bulging disc material to decompress. A 2024 systematic review found manual traction significantly reduces short-term pain and disability in lumbar disc conditions. Devices like the HOTMUZ manual traction unit generate up to 450N of force — roughly 100 pounds of sustained pull — which is sufficient to produce clinically meaningful separation at the L5–S1 level. Unilateral traction mode is particularly relevant here because L5–S1 bulges frequently compress one nerve root more than the other, and independent left/right adjustment addresses that asymmetry directly.

  • HOTMUZ standard model traction force: up to 450N (approximately 100 lbs) at the lumbar spine.
  • HOTMUZ enhanced model traction force: up to 700N, designed for users exceeding 176 lbs.
  • Horizontal traction position removes 100% of gravitational axial load from the L5–S1 disc level.
  • Contraindication: traction is not safe for sequestrated or free-fragment L5–S1 herniations confirmed by CT or MRI.
  • HOTMUZ standard model fits waist circumferences of 29–49 inches; upper safe limit approximately 39 inches / 100 cm.

Safety Notes

  • Sequestrated or free-fragment herniation: If CT or MRI confirms loose disc material in the spinal canal, traction at L5–S1 can worsen nerve compression — stop and consult your physician before using the HOTMUZ device.
  • New or worsening leg symptoms during use: Increasing numbness, tingling, or weakness radiating below the knee while applying traction is a red flag — reduce force immediately and do not continue that session.
  • Osteoporosis or spinal malignancy: The 450N mechanical thrust the HOTMUZ standard model generates is contraindicated when vertebral bone integrity is compromised by osteoporosis, cancer, or spinal tuberculosis.
  • Start at minimum force for the first three sessions: Even with a straightforward L5–S1 bulge, beginning at the lowest HOTMUZ traction setting reduces the risk of reactive muscle spasm, a common early-session response.
  • Firm surface only: Using the HOTMUZ device on a soft mattress allows the frame to shift, which reduces effective traction force and risks uneven loading across the L5–S1 segment.