Electromyographic biofeedback improves upper extremity function: a randomized, single-blinded, controlled trial
ObjectiveTo examine the effects of a 6-week surface electromyographic biofeedback intervention on the re-learning of upper extremity motor function in subjects with paretic upper extremity after stroke.DesignA randomized controlled trial.SettingState Centre of Attention to Brain Injury, Madrid, Spai...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad de Castilla-La Mancha |
| Repositorio: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/41194 |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S003194062030016X https://hdl.handle.net/10578/41194 |
| Access Level: | acceso abierto |
| Palabra clave: | Biofeedback Electromyography Recovery of function Stroke Upper extremity |
| Sumario: | ObjectiveTo examine the effects of a 6-week surface electromyographic biofeedback intervention on the re-learning of upper extremity motor function in subjects with paretic upper extremity after stroke.DesignA randomized controlled trial.SettingState Centre of Attention to Brain Injury, Madrid, Spain.ParticipantsThirty-eight participants in the sub-acute post-stroke stage were recruited and randomly allocated into either the surface electromyographic biofeedback (sEMG-BFB) or sham biofeedback (BFB) groups.InterventionsThe sEMG-BFB group (n = 19) received the intervention focused on re-learning scapulothoracic control during arm-reaching tasks involving shoulder abduction. The sham BFB group (n = 19) received a sham intervention.Outcome measuresUpper extremity motor function assessed using the Fugl-Meyer Assessment-Upper Extremity Scale (66 points), the glenohumeral active range of motion, and the electromyographic amplitude signal of the middle deltoid and upper trapezius muscles were collected at baseline, after the intervention, and at the one-month follow-up.ResultsCompared with the sham BFB group, the sEMG-BFB group experienced significant increases in upper extremity motor function after the intervention. The mean differences between groups were as follows: 4.79 points (95% CI 2.92 to 6.66) after the intervention; 6.55 points (95% CI 3.75 to 9.34) at the one-month follow-up; improved active range of motion 15.75 points (95% CI 6 to 30) after the intervention and electromyographic activity in the upper trapezius muscle changed in favour of the sEMG-BFB.ConclusionsIn the short term, a 6-week sEMG-BFB intervention effectively improved paretic upper limb motor function. Future research is needed to determine if the sEMG-BFB intervention has any long-term effects. |
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