Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Shoulder Musculoskeletal Disorder Rehabilitation Using a Robotic Device Based on Emg Biofeedback: A Retrospective Cohort Study

Version 1 : Received: 29 September 2022 / Approved: 30 September 2022 / Online: 30 September 2022 (15:04:05 CEST)

How to cite: Lavallière, M.; Tremblay, M.; Ojardias, E.; Turpin, M.; Perrochon, A.; Rigoard, P.; Goudman, L.; Moens, M.; David, R.; Billot, M. Shoulder Musculoskeletal Disorder Rehabilitation Using a Robotic Device Based on Emg Biofeedback: A Retrospective Cohort Study. Preprints 2022, 2022090490. https://doi.org/10.20944/preprints202209.0490.v1 Lavallière, M.; Tremblay, M.; Ojardias, E.; Turpin, M.; Perrochon, A.; Rigoard, P.; Goudman, L.; Moens, M.; David, R.; Billot, M. Shoulder Musculoskeletal Disorder Rehabilitation Using a Robotic Device Based on Emg Biofeedback: A Retrospective Cohort Study. Preprints 2022, 2022090490. https://doi.org/10.20944/preprints202209.0490.v1

Abstract

While shoulder injuries represent the musculoskeletal disorders (MSDs) most encountered in physical therapy, there is no consensus on their management. As attempts to provide standardized and personalized treatment, a robot-ic-assisted device combined with EMG biofeedback specifically dedicated to shoulder MSDs has been developed. The aim of this study was to determine the efficacy of an 8-week rehabilitation program (≈3 sessions a week) using a ro-botic-assisted device combined with EMG biofeedback (RA-EMG group) in comparison with a conventional program (CONV group) in patients presenting with shoulder MSDs. This study is a retrospective cohort study including data from 2010 to 2013 on patients initially involved in a physical rehabilitation program in a private clinic of Chicoutimi (Canada) for shoulder MSDs. Shoul-der flexion strength and range of motion were collected before and after the rehabilitation program. Forty-four patients participated in a conventional pro-gram using dumbbell (CONV group) while 72 of them completed a program on robot-assisted device with EMG and visual biofeedback (RA-EMG group), whereby both programs consisted in 2 sets of 20 repetitions at 60% of maximal capacity. Results showed that the RA-EMG had significantly greater benefits than the Conv group for shoulder flexion strength (+103.1% vs 67%, p = 0.016) and range of motion (+14.4% vs 6.1%, p = 0.046). The current retrospective co-hort study showed that a specific and tailored rehabilitation program with constant effort by automatic adjustment of the level of resistance was able to potentiate strength and range of motion shoulder flexion after an 8-week reha-bilitation period in comparison with a conventional approach in patients with shoulder MSDs. This study provides new insight on shoulder MSD rehabilita-tion and future research should be pursued to determine the added potential of this approach for abduction and external rotation with a randomized controlled design.

Keywords

rehabilitation; shoulder; electromyography feedback; visual biofeedback; assistive robot; musculoskeletal disorder

Subject

Medicine and Pharmacology, Orthopedics and Sports Medicine

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