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Related Experiment Videos

Mastication and maturity: a longitudinal study in pigs.

S W Herring

    Journal of Dental Research
    |November 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Electromyography of mastication in pigs revealed chewing stroke duration increases with age and food resistance. Individual variation in chewing patterns was significant.

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    Area of Science:

    • Biomedical Engineering
    • Comparative Physiology
    • Biomechanics

    Background:

    • Mastication is a complex motor task influenced by various factors.
    • Understanding masticatory muscle activity provides insights into feeding behaviors and evolutionary adaptations.
    • Longitudinal studies are crucial for assessing age-related changes in physiological functions.

    Purpose of the Study:

    • To longitudinally investigate the electromyography of mastication in miniature pigs.
    • To determine the effects of aging and food resistance on masticatory muscle activity.
    • To compare findings with human and other animal mastication data.

    Main Methods:

    • Longitudinal electromyography (EMG) recordings of masticatory muscles in miniature pigs.
    • Assessment of EMG signals during feeding with different food types (varying resistance).

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  • Analysis of chewing stroke duration and other kinematic parameters.

    • Main Results:

    • Significant within-individual variation in masticatory patterns was observed.
    • Chewing stroke duration demonstrated a positive correlation with the age of the pigs.
    • Increased food resistance led to a significant increase in chewing stroke duration.

    Conclusions:

    • Masticatory muscle activity in pigs is adaptable to age and diet.
    • Chewing biomechanics in pigs show similarities to other species, aiding comparative studies.
    • Longitudinal EMG data offers valuable insights into the functional adaptations of mastication.