Gentler workout with blood flow cuffs may beat heavy lifting for back pain
NCT ID NCT07480759
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a new exercise method for male athletes with sub-acute low back pain. Instead of heavy lifting, participants did light exercises while wearing cuffs on their legs that partially restrict blood flow. The goal was to see if this approach could reduce pain and improve strength with less strain on the back. Sixty-four athletes took part, and the results may offer a safer training option for those recovering from back pain.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Low-load blood flow restriction training (LL-BFR) – exercises with leg cuffs that limit blood flow
- What this could lead to
- If it works, this could offer a gentler exercise option for athletes with back pain that still builds strength and reduces pain.
- What could go wrong
- This is a small, completed study in young male athletes only, so results may not apply to others. The approach is still experimental and not widely available.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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64 people
The number who actually took part.
- Started
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Nov 2025
- Finished
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Feb 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 24 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * • Male athletes (Liu et al., 2025) * Age 18-24 years (Liu et al., 2025) * Athletes like wrestlers, weightlifters and sprinters * Report pain and discomfort localized below the costal margin and above the inferior gluteal folds. (Adhikari et al., 2021) * Subacute low back pain - Pain lasting between 4 to 12 weeks. (Chou \& Atlas, 2023) * Participants with moderate level of pain on Visual analogue scale.(Nambi et al., 2022) * Negative straight-leg-raising (SLR) test, which is useful for diagnosing lumbar disc herniation. (Jardim et al., 2022) * No dominant leg pain from radicular or cauda equina disorders. (Liu et al., 2025) * No history of previous lumbar or thoracolumbar spine surgery. (Jardim et al., 2022) Exclusion Criteria: * Any prior lumbar or thoracolumbar spine surgery (Liu et al., 2025) * A history of cancer, spinal infection, rheumatologic diseases, spine fracture, red flag signs (such as significant and unexplained weight loss exceeding 10% of total body weight within the past six months, and presence of fever), psychological disorders, and previous spine surgery, radiculopathy, anatomical or congenital abnormalities. (Hernandez-Lucas et al., 2023) * History of peripheral arterial disease or deep vein thrombosis. (Jardim et al., 2022)
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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UIPT, UOL, Lahore
Lahore, Pakistan