Muscle twitch thresholds depending on the direction of current stimulation
Acoustic or visual warning signals for workers in hazardous situations might fail under loud and/or lowvisibility work situations. A warning system that uses electrocutaneous stimulation can overcome this problem. This study aimed to compare vertical, diagonal, and horizontal current stimulation dir...
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| Format: | Article |
| Language: | English |
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De Gruyter
2024-12-01
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| Series: | Current Directions in Biomedical Engineering |
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| Online Access: | https://doi.org/10.1515/cdbme-2024-2047 |
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| author | Dölker Eva-Maria Haueisen Jens |
| author_facet | Dölker Eva-Maria Haueisen Jens |
| author_sort | Dölker Eva-Maria |
| collection | DOAJ |
| description | Acoustic or visual warning signals for workers in hazardous situations might fail under loud and/or lowvisibility work situations. A warning system that uses electrocutaneous stimulation can overcome this problem. This study aimed to compare vertical, diagonal, and horizontal current stimulation directions at the upper arm to select the one with the lowest amount of muscle twitching. Fourteen electrodes were attached in two rows to the upper right arm of 15 participants. The stimulation was conducted with bi-phasic rectangular pulses of 150 μs and amplitudes of up to 25 mA. Muscle twitch thresholds have been determined and a circumferential stimulation signal was presented as warning pattern for the three current stimulation directions and evaluated regarding alertness, discomfort, and urgency. For single stimulation pulses, muscle twitches occurred slightly less often at the horizontal stimulation direction compared to the other two and muscle twitch thresholds showed no systematic differences. For the warning patterns, no considerable differences were found regarding the evaluation of alertness, discomfort, and urgency and no differences were found for muscle twitching. In conclusion, all orientations seem suitable for warning pattern presentation and none of the directions has a clear advantage in reducing muscle twitch. |
| format | Article |
| id | doaj-art-04d480370dd94802b856c29ac72b102d |
| institution | OA Journals |
| issn | 2364-5504 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Current Directions in Biomedical Engineering |
| spelling | doaj-art-04d480370dd94802b856c29ac72b102d2025-08-20T01:47:46ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042024-12-0110419619910.1515/cdbme-2024-2047Muscle twitch thresholds depending on the direction of current stimulationDölker Eva-Maria0Haueisen Jens1Technische Universität Ilmenau, Institute of Biomedical Engineering and Informatics, Gustav-Kirchhoff-Str.2,Ilmenau, GermanyTechnische Universität Ilmenau, Institute of Biomedical Engineering and Informatics,Ilmenau, GermanyAcoustic or visual warning signals for workers in hazardous situations might fail under loud and/or lowvisibility work situations. A warning system that uses electrocutaneous stimulation can overcome this problem. This study aimed to compare vertical, diagonal, and horizontal current stimulation directions at the upper arm to select the one with the lowest amount of muscle twitching. Fourteen electrodes were attached in two rows to the upper right arm of 15 participants. The stimulation was conducted with bi-phasic rectangular pulses of 150 μs and amplitudes of up to 25 mA. Muscle twitch thresholds have been determined and a circumferential stimulation signal was presented as warning pattern for the three current stimulation directions and evaluated regarding alertness, discomfort, and urgency. For single stimulation pulses, muscle twitches occurred slightly less often at the horizontal stimulation direction compared to the other two and muscle twitch thresholds showed no systematic differences. For the warning patterns, no considerable differences were found regarding the evaluation of alertness, discomfort, and urgency and no differences were found for muscle twitching. In conclusion, all orientations seem suitable for warning pattern presentation and none of the directions has a clear advantage in reducing muscle twitch.https://doi.org/10.1515/cdbme-2024-2047electrocutaneous stimulationmuscle twitchtwitch potentiationwarning signals |
| spellingShingle | Dölker Eva-Maria Haueisen Jens Muscle twitch thresholds depending on the direction of current stimulation Current Directions in Biomedical Engineering electrocutaneous stimulation muscle twitch twitch potentiation warning signals |
| title | Muscle twitch thresholds depending on the direction of current stimulation |
| title_full | Muscle twitch thresholds depending on the direction of current stimulation |
| title_fullStr | Muscle twitch thresholds depending on the direction of current stimulation |
| title_full_unstemmed | Muscle twitch thresholds depending on the direction of current stimulation |
| title_short | Muscle twitch thresholds depending on the direction of current stimulation |
| title_sort | muscle twitch thresholds depending on the direction of current stimulation |
| topic | electrocutaneous stimulation muscle twitch twitch potentiation warning signals |
| url | https://doi.org/10.1515/cdbme-2024-2047 |
| work_keys_str_mv | AT dolkerevamaria muscletwitchthresholdsdependingonthedirectionofcurrentstimulation AT haueisenjens muscletwitchthresholdsdependingonthedirectionofcurrentstimulation |