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- Title
The effectiveness of blood flow restriction vs. heavy load resistance training during post-surgery rehabilitation of anterior cruciate ligament reconstruction patients: a UK National Health Service randomised controlled trial.
- Authors
Hughes, L.; Rosenblatt, B.; Haddad, F.; Gissane, C.; McCarthy, D.; Clarke, T.; Ferris, G.; Dawes, J.; Paton, B.; Patterson, S. D.
- Abstract
Objective: To compare the effectiveness of light load personalised blood flow restriction resistance training (PBFR-RT) and standard care heavy load resistance training (HLRT) in the post-surgery rehabilitation of patients undergoing anterior cruciate ligament reconstruction (ACLR) in the National Health Service (NHS). Methods: Twenty-eight patients with hamstring autograft were recruited for this single assessor blinded trial. Participants were block randomised to HLRT (n=14) at 70% of one repetition maximum (1RM) or PBFR-RT (n=14) at 30% 1RM and completed 8 weeks of biweekly unilateral leg press training alongside standard hospital rehabilitation, beginning at 3 weeks post-surgery. Isotonic strength (10RM), muscle morphology of the vastus lateralis, self-reported function, Y-balance test performance and knee joint pain and effusion were assessed at postsurgery, mid-training and post-training. Knee joint laxity was measured at pre-surgery and post-training. Results: Twenty-four participants completed the study with no adverse events. 10RM strength significantly increased with PBFR-RT (104%) and HLRT (106%) with no group differences. Significant and comparable increases in muscle thickness (5.8- 6.7%) and pennation angle (3.4-4.1%) were observed with no group differences. Significantly greater and clinically important increases in several measures of self-reported function (50-218% vs. 35-152%), Y-balance performance (18-59% vs. 18-33%) and reductions in knee joint pain (67% vs. 39%) and effusion (6% vs. 2%) were observed with PBFR-RT compared to HLRT, respectively. Knee joint laxity decreased with no group differences. Conclusion: PBFR-RT can improve skeletal muscle hypertrophy and strength to a similar extent as HLRT with a greater reduction in knee joint pain and effusion, and greater overall improvements in physical function. Clinical implications: PBFR-RT may be more appropriate for early rehabilitation in ACLR patient populations within the NHS.
- Publication
International Journal of Sports Physical Therapy, 2019, Vol 14, Issue 6, pS9
- ISSN
2159-2896
- Publication type
Academic Journal