Immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post-stroke
Upper limb impairment occurs in approximately 80% of stroke survivors, with altered scapular kinematics playing a key role in dysfunction. Serratus anterior weakness post-stroke contributes to abnormal scapular motion, limiting shoulder and arm function. This study explored whether Electrical Stimu...
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PAGEPress Publications
2025-08-01
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| Series: | European Journal of Translational Myology |
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| Online Access: | https://www.pagepressjournals.org/bam/article/view/14082 |
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| author | Palak Anand Kakwani Ramesh Debur |
| author_facet | Palak Anand Kakwani Ramesh Debur |
| author_sort | Palak Anand Kakwani |
| collection | DOAJ |
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Upper limb impairment occurs in approximately 80% of stroke survivors, with altered scapular kinematics playing a key role in dysfunction. Serratus anterior weakness post-stroke contributes to abnormal scapular motion, limiting shoulder and arm function. This study explored whether Electrical Stimulation (ES) could immediately enhance serratus anterior activity in individuals with post-stroke hemiplegia. A pre-post intervention design was used involving 19 individuals within three months post-stroke. Surface Electromyography (sEMG) recorded serratus anterior activity during a forward reach task. The Fugl-Meyer Assessment (FMA) was also administered. Participants received 20 minutes of ES targeting the serratus anterior, after which sEMG and FMA were reassessed. Wilcoxon signed rank test compared pre- and post-intervention sEMG values. Statistical analysis showed a significant change in the area under the curve value(p < 0.01) but no significant change in RMS value. There was no change in FMA scale. Electrical stimulation showed significant changes in the muscle activity of the serratus anterior, indicating a reduction in the cost of the muscle work done during the forward reach task.
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| format | Article |
| id | doaj-art-2acf33996c7947cba814cbd00a555d3f |
| institution | Kabale University |
| issn | 2037-7452 2037-7460 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | PAGEPress Publications |
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| series | European Journal of Translational Myology |
| spelling | doaj-art-2acf33996c7947cba814cbd00a555d3f2025-08-23T13:23:38ZengPAGEPress PublicationsEuropean Journal of Translational Myology2037-74522037-74602025-08-0110.4081/ejtm.2025.14082Immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post-strokePalak Anand Kakwani0Ramesh Debur1Biofeedback Lab, M.S. Ramaiah College of Physiotherapy, BengaluruBiofeedback Lab, M.S. Ramaiah College of Physiotherapy, Bengaluru Upper limb impairment occurs in approximately 80% of stroke survivors, with altered scapular kinematics playing a key role in dysfunction. Serratus anterior weakness post-stroke contributes to abnormal scapular motion, limiting shoulder and arm function. This study explored whether Electrical Stimulation (ES) could immediately enhance serratus anterior activity in individuals with post-stroke hemiplegia. A pre-post intervention design was used involving 19 individuals within three months post-stroke. Surface Electromyography (sEMG) recorded serratus anterior activity during a forward reach task. The Fugl-Meyer Assessment (FMA) was also administered. Participants received 20 minutes of ES targeting the serratus anterior, after which sEMG and FMA were reassessed. Wilcoxon signed rank test compared pre- and post-intervention sEMG values. Statistical analysis showed a significant change in the area under the curve value(p < 0.01) but no significant change in RMS value. There was no change in FMA scale. Electrical stimulation showed significant changes in the muscle activity of the serratus anterior, indicating a reduction in the cost of the muscle work done during the forward reach task. https://www.pagepressjournals.org/bam/article/view/14082Strokeserratus anteriorelectrical stimulationsurface electromyography |
| spellingShingle | Palak Anand Kakwani Ramesh Debur Immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post-stroke European Journal of Translational Myology Stroke serratus anterior electrical stimulation surface electromyography |
| title | Immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post-stroke |
| title_full | Immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post-stroke |
| title_fullStr | Immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post-stroke |
| title_full_unstemmed | Immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post-stroke |
| title_short | Immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post-stroke |
| title_sort | immediate effects of electrical stimulation on serratus anterior muscle activity in people with hemiplegia post stroke |
| topic | Stroke serratus anterior electrical stimulation surface electromyography |
| url | https://www.pagepressjournals.org/bam/article/view/14082 |
| work_keys_str_mv | AT palakanandkakwani immediateeffectsofelectricalstimulationonserratusanteriormuscleactivityinpeoplewithhemiplegiapoststroke AT rameshdebur immediateeffectsofelectricalstimulationonserratusanteriormuscleactivityinpeoplewithhemiplegiapoststroke |