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A 32-year-old male asked:

What is the definition or description of: muscle contractions?

1 doctor answer2 doctors weighed in
Dr. Edward Hellman
Orthopedic Surgery 30 years experience
Shortening: When a muscle contracts, it basically shortens. In a skeletal muscle, the shortening of the muscles then pulls on a tendon causing motion to occur in an adjacent joint.

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CA
A 33-year-old male asked:

What is the definition or description of: Sustained muscle contractions?

1 doctor answer3 doctors weighed in
Dr. Edward Hellman
Orthopedic Surgery 30 years experience
Continuous : A muscle will typically contract and then relax. A "sustained" muscle contraction contracts, but the does not relax, making the contraction continual.

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Last updated Dec 20, 2016
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