Blood Flow Restriction Training After Knee Arthroscopy
| Autor: | David J. Tennent, Jason M. Wilken, Johnny G. Owens, Travis C. Burns, Christina M. Hylden, Anthony E. Johnson |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male medicine.medical_specialty Knee Joint Quadriceps strength Pilot Projects Physical Therapy Sports Therapy and Rehabilitation Knee Injuries Blood flow restriction Quadriceps Muscle Muscle hypertrophy law.invention Arthroscopy 03 medical and health sciences 0302 clinical medicine Randomized controlled trial law medicine Humans Orthopedics and Sports Medicine Muscle Strength Ultrasonography Venous Thrombosis 030222 orthopedics Knee arthroscopy medicine.diagnostic_test Venous occlusion business.industry Hypertrophy 030229 sport sciences Middle Aged Exercise Therapy Regional Blood Flow Physical therapy Female Arthroscopic knee procedures business |
| Zdroj: | Clinical Journal of Sport Medicine. 27:245-252 |
| ISSN: | 1050-642X |
| Popis: | Quadriceps strength after arthroscopic knee procedures is frequently diminished several years postoperation. Blood flow restriction (BFR) training uses partial venous occlusion while performing submaximal exercise to induce muscle hypertrophy and strength improvements. The purpose of this study was to evaluate BFR as a postoperative therapeutic intervention after knee arthroscopy.A randomized controlled pilot study comparing physical therapy with and without BFR after knee arthroscopy was conducted. Patients underwent 12 sessions of supervised physical therapy. Subjects followed the same postoperative protocol with the addition of 3 additional BFR exercises. Outcome measures included thigh girth, physical function measures, Knee Osteoarthritis Outcome Score (KOOS), Veterans RAND 12-Item Health Survey (VR12), and strength testing. Bilateral duplex ultrasonography was used to evaluate for deep venous thrombosis preintervention and postintervention.Seventeen patients completed the study. Significant increases in thigh girth were observed in the BFR group at 6-cm and 16-cm proximal to the patella (P = 0.0111 and 0.0001). All physical outcome measures significantly improved in the BFR group, and the timed stair ascent improvements were greater than conventional therapy (P = 0.0281). The VR-12 and KOOS subscales significantly improved in the BFR group, and greater improvement was seen in VR-12 mental component score (P = 0.0149). The BFR group displayed approximately 2-fold greater improvements in extension and flexion strength compared with conventional therapy (74.59% vs 33.5%, P = 0.034). No adverse events were observed during the study.This study suggests that BFR is an effective intervention after knee arthroscopy. Further investigation is warranted to elucidate the benefits of this intervention in populations with greater initial impairment. |
| Databáze: | OpenAIRE |
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