Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions
[Purpose] This study investigated the changes in the slope of EMG-time curves (relationship) at the maximal and different levels of dynamic (eccentric and concentric) and static (isometric) contractions. [Subjects and Methods] The subject was a 17 year-old male adolescent. The surface EMG signal of...
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| Format: | Article |
| Language: | English |
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The Society of Physical Therapy Science
2015
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/8272/ http://umpir.ump.edu.my/id/eprint/8272/1/27_jpts-2014-304.pdf |
| _version_ | 1848818197398028288 |
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| author | Ahamed, Nizam Uddin Ahmed, Nasim Alqahtani, Mahdi Altwijri, Omar Ahmad, Badlishah Sundaraj, Kenneth |
| author_facet | Ahamed, Nizam Uddin Ahmed, Nasim Alqahtani, Mahdi Altwijri, Omar Ahmad, Badlishah Sundaraj, Kenneth |
| author_sort | Ahamed, Nizam Uddin |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | [Purpose] This study investigated the changes in the slope of EMG-time curves (relationship) at the maximal and different levels of dynamic (eccentric and concentric) and static (isometric) contractions. [Subjects and Methods] The subject was a 17 year-old male adolescent. The surface EMG signal of the dominant arm’s biceps brachii (BB) was recorded through electrodes placed on the muscle belly. [Results] The results obtained during the contractions show that the regression slope was very close to 1.00 during concentric contraction, whereas those of eccentric and isometric contractions were lower. Significant differences were found for the EMG amplitude and time lags among the contractions. [Conclusion] The results show that the EMG signal of the BB varies among the three modes of contraction and the relationship of the EMG amplitude with a time lag gives the best fit during concentric contraction. |
| first_indexed | 2025-11-15T01:33:50Z |
| format | Article |
| id | ump-8272 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:33:50Z |
| publishDate | 2015 |
| publisher | The Society of Physical Therapy Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-82722018-05-02T02:41:49Z http://umpir.ump.edu.my/id/eprint/8272/ Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions Ahamed, Nizam Uddin Ahmed, Nasim Alqahtani, Mahdi Altwijri, Omar Ahmad, Badlishah Sundaraj, Kenneth TA Engineering (General). Civil engineering (General) [Purpose] This study investigated the changes in the slope of EMG-time curves (relationship) at the maximal and different levels of dynamic (eccentric and concentric) and static (isometric) contractions. [Subjects and Methods] The subject was a 17 year-old male adolescent. The surface EMG signal of the dominant arm’s biceps brachii (BB) was recorded through electrodes placed on the muscle belly. [Results] The results obtained during the contractions show that the regression slope was very close to 1.00 during concentric contraction, whereas those of eccentric and isometric contractions were lower. Significant differences were found for the EMG amplitude and time lags among the contractions. [Conclusion] The results show that the EMG signal of the BB varies among the three modes of contraction and the relationship of the EMG amplitude with a time lag gives the best fit during concentric contraction. The Society of Physical Therapy Science 2015-01-09 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8272/1/27_jpts-2014-304.pdf Ahamed, Nizam Uddin and Ahmed, Nasim and Alqahtani, Mahdi and Altwijri, Omar and Ahmad, Badlishah and Sundaraj, Kenneth (2015) Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions. Journal of Physical Therapy Science, 27 (1). pp. 39-40. ISSN 0915-5287. (Published) http://dx.doi.org/10.1589/jpts.27.39 DOI: 10.1589/jpts.27.39 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Ahamed, Nizam Uddin Ahmed, Nasim Alqahtani, Mahdi Altwijri, Omar Ahmad, Badlishah Sundaraj, Kenneth Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions |
| title | Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions |
| title_full | Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions |
| title_fullStr | Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions |
| title_full_unstemmed | Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions |
| title_short | Investigation of the EMG-Time Relationship of the Biceps Brachii Muscle During Contractions |
| title_sort | investigation of the emg-time relationship of the biceps brachii muscle during contractions |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://umpir.ump.edu.my/id/eprint/8272/ http://umpir.ump.edu.my/id/eprint/8272/ http://umpir.ump.edu.my/id/eprint/8272/ http://umpir.ump.edu.my/id/eprint/8272/1/27_jpts-2014-304.pdf |