| Autor: |
Omar Altwijri, Nizam Uddin Ahamed, Kenneth Sundaraj, Mahdi Alqahtani, Nasir Ahmed, S. A. M. Matiur Rahman |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Regional Conference on Science, Technology and Social Sciences (RCSTSS 2014) ISBN: 9789811005329 |
| Popis: |
Studies of the surface electromyographic or EMG signal on the skeletal muscles have provided valuable information on the physiology to understand the motor unit activity strategy during contraction. This paper investigated the relationship between EMG and time during isokinetic contraction (a type of exercises or movement to increase muscular strength) from the upper limb’s biceps brachii (BB) muscle. Five right-hand-dominated male subjects (age 23.2 ± 1.6 years) participated in the study. The muscle activation during load lifting (using a standard 6-kg dumbbell) was determined as the root mean square (RMS) electromyographic signal normalized to the peak RMS EMG signal of a maximal contraction for 10 s. For the statistical analysis, the slope of the regression relationship was used to test the relationships between EMG and time from the maximal voluntary isokinetic contraction (MVC). The measurement duration (10 s) was divided into four phases for analyzing the relationship. The results of the study showed a linear but poor relationship between EMG and time during such contraction, where r 2 = 0.11 and F = 3.74. Also, no significant difference exits from the analysis where, P = 0.062. These results provided insight toward applications of biomedical engineering methods in the analysis and control of the neuromuscular system, ergonomics field of research, rehabilitation engineering, and movement biomechanics during such type of dynamic contraction. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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