Group Action of Muscles: Integrated
activity of many muscle groups is required for production of efficient
functional movement. They are
i) Agonists: Group of muscles
which contract to provide the force required to produce the movement.
ii) Antagonists: These
muscles oppose the action of agonists and relax progressively for permitting
the movement.
iii) Synergists: These
groups of muscles work with agonists to provide a suitable activity and
facilitates the movements
iv) Fixators: These
muscles stabilize the bones of origin of the agonists and increases their
efficiency for production of movement.
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