Brief summary, from the abstract
In early rehab after bone-patellar tendon-bone ACL reconstruction, low-load blood flow restriction training produced muscle strength, knee pain, swelling, and range of motion outcomes that were not significantly different from heavy-load resistance training, supporting it as a safe alternative when heavy loading is not feasible.
- Randomized controlled trial of 28 patients (23 completed), comparing 12 weeks of biweekly low-load blood flow restriction training (LL-BFRT) versus heavy-load resistance training (HLRT) after BPTB ACL reconstruction.
- No significant between-group differences in quadriceps strength at 60, 180, or 300 deg/s (e.g. 2.7 vs 3.1 Nm/kg, p = 0.738 at 60 deg/s) or in hamstring strength.
- No significant differences in knee pain (14.3% vs 35.7%, p = 0.380), joint effusion (7.1% vs 35.7%, p = 0.444), flexion deficit (7.1% vs 28.6%, p = 0.426), or extension deficit (0.0% vs 14.3%, p = 0.478).
- Evidence comes from a single small trial, so the non-significant differences may reflect limited statistical power rather than true equivalence.
Clinically assessing this area? See the knee special tests.