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An Electromyographic Study to Evaluate the Effect of Age and Gender on Masseter Muscle Activities During Chewing of Different Textured Foods

EMG is being used now days for describing various mechanical attributes of food for their texture analysis, During EMG the generated bioelectrical activity of the muscles are used for providing the real time information for the complete process of chewing. The objective of this study was to investigate the effect of gender and age on the bioelectrical activities of masseter muscles obtained during mastication of five different textured foods namely jelly, cake, dhokla, rasgulla and paneer. The electromyographic study was conducted on twelve healthy human subjects [4 females aged between 28 to 30 years (Group 1), 4 females aged between 18-20 years (Group 2), and 4 males aged between 18-20 years]. Eighteen electromyographic variables were obtained from each experimental session. The values of various masticatory parameters of Group 1 and Group 2 subjects were not significantly (p≤0.05) different. Also comparison of male with female electromyographic data, obtained during mastication, showed no significant (p≤0.05) difference except for inter burst duration per chew and early burst duration. The study indicated that the group for electromyographic data acquisition can be formulated from the subjects of both genders with age varying from 18 to 30 years.