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WHat are 5 ways force is increased in electrically stimulated contractions?

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Final answer:

Five ways force is increased in electrically stimulated contractions are recruitment of more muscle fibers, increasing the frequency of action potentials, optimizing the length-tension relationship, increasing calcium concentration, and releasing more neurotransmitters.

Step-by-step explanation:

Electrically stimulated contractions can increase force in several ways.

  1. Recruitment of more muscle fibers: When more muscle fibers are activated, the force of contraction increases. This can be achieved by increasing the intensity of electrical stimulation.
  2. Increasing the frequency of action potentials: When action potentials are fired rapidly, the force of contraction is increased.
  3. Length-tension relationship: The force of contraction is greatest when the muscle is at an optimal length. Applying electrical stimulation at this length can increase force.
  4. Increasing calcium concentration: Calcium is required for muscle contraction. By increasing the concentration of calcium in the muscle, the force of contraction can be increased.
  5. Releasing more neurotransmitters: Electrical stimulation can lead to the release of more neurotransmitters, which can enhance the force of contraction.
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