Local vibration training improves the recovery of quadriceps strength in early rehabilitation after anterior cruciate ligament reconstruction: A feasibility randomised controlled trial - 05/08/22
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Highlights |
• | Quadriceps maximal isometric strength is decreased after anterior cruciate ligament reconstruction. |
• | Adding local vibration training to rehabilitation improved strength recovery. |
• | Local vibration to relaxed muscles could be implemented in the early period of anterior cruciate ligament rehabilitation. |
Abstract |
Background |
After anterior cruciate ligament reconstruction (ACLR), quadriceps strength must be maximised as early as possible.
Objectives |
We tested whether local vibration training (LVT) during the early post-ACLR period (i.e., ∼10 weeks) could improve strength recovery.
Methods |
This was a multicentric, open, parallel-group, randomised controlled trial. Thirty individuals attending ACLR were randomised by use of a dedicated Web application to 2 groups: vibration (standardised rehabilitation plus LVT, n=16) or control (standardised rehabilitation alone, n=14). Experimenters, physiotherapists and participants were not blinded. Both groups received 24 sessions of standardised rehabilitation over ∼10 weeks. In addition, the vibration group received 1 hour of vibration applied to the relaxed quadriceps of the injured leg at the end of each rehabilitation session. The primary outcome — maximal isometric strength of both injured and non-injured legs (i.e., allowing for limb asymmetry measurement) — was evaluated before ACLR (PRE) and after the 10-week rehabilitation (POST).
Results |
Seven participants were lost to follow-up, so data for 23 participants were used in the complete-case analysis. For the injured leg, the mean (SD) decrease in maximal strength from PRE to POST was significantly lower for the vibration than control group (n=11, −16% [10] vs. n=12, −30% [11]; P=0.0045, Cohen's d effect size=1.33). Mean PRE–POST change in limb symmetry was lower for the vibration than control group (−19% [11] vs. −29% [13]) but not significantly (P=0.051, Cohen's d effect size=0.85).
Conclusion |
LVT improved strength recovery after ACLR. This feasibility study suggests that LVT applied to relaxed muscles is a promising modality of vibration therapy that could be implemented early in ACLR.
Trial registration |
ClinicalTrials.gov: NCT02929004.
Le texte complet de cet article est disponible en PDF.Keywords : Local vibration, Strength, Rehabilitation, Anterior cruciate ligament reconstruction
Plan
Vol 65 - N° 4
Article 101441- juin 2022 Retour au numéro
Article précédent
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