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Reentrainement a l'effort entre le quatrieme et le sixieme mois apres ligamentoplastie de genou au didt: comparaison de la pratique de la bicyclette et de la pratique du footing avec un groupe temoin non reentraine (Retraining between months 4 and 6 after anterior cruciate ligament reconstruction with hamstring graft: comparison between cycling and running with an untrained operated subject group) [French]
Dauty M, Huguet D, Tortellier L, Potiron-Josse M, Dubois C
Annales de Readaptation et de Medecine Physique 2006 Jun;49(5):218-225
clinical trial
4/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

OBJECTIVE: To study the effect of cycling or running retraining between 4 and 6 months after patients underwent anterior cruciate ligament reconstruction with hamstring grafting (Semitendinosus-Gracilis) compared with that in patients who had the same surgery but were untrained. METHOD: Patients who had undergone surgery for an anterior cruciate ligament reconstruction by the same surgeon who used hamstring grafting were included if they were free of knee pain 4 months after the surgery. After giving consent, patients were randomized to receive controlled retraining (cycling or running 3 times a week) or not. The effect of retraining was measured by the evolution of the knee isokinetic peak torque at 60 degrees/s and 180 degrees/s 6 months after surgery. RESULTS: Fifteen patients were retrained with cycling (GI), 17 with running (GII) and 15 patients did not retrain (GIII). Before retraining, the 3 groups had the same peak torque deficit, measured at an angular speed of 60 degrees/s and 180 degrees/s, for knee extensors (GI 33 +/- 11% and 27 +/- 8%; GII 30 +/- 13% and 24 +/- 10%; GIII 31 +/- 15% and 24 +/- 13%, respectively) and knee flexors (GI 26 +/- 11% and 20 +/- 13%; GII 20 +/- 14% and 17 +/- 13%; GIII 19 +/- 15% and 14 +/- 15%, respectively). After retraining, progress measured at 60 degrees/s of knee extensors and flexors on the operated knees was 18 +/- 9% and 16 +/- 10% for GI, 16 +/- 9% and 11 +/- 11% for GII and 12 +/- 15% and 8 +/- 12 for GIII, respectively. Progress measured at 180 degrees/s followed the same evolution. After comparison of the 3 groups, any significant difference was put in relief according to the type of retraining. CONCLUSION: Retraining after anterior cruciate ligament reconstruction is necessary for patients to practice their previous sport. In our study, aerobic cycling or running between 4 and 6 months after surgery did not improve peak torque in the operated knee extensors and flexors. However, these 2 types of retraining are well-tolerated.

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