Answer:
A method of physical exercise in which one set of muscles is tensed, for a period of seconds, in opposition to another set of muscles or to an immovable object
Explanation:
#CarryOnLearning!
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Answers & Comments
Answer:
A method of physical exercise in which one set of muscles is tensed, for a period of seconds, in opposition to another set of muscles or to an immovable object
Explanation:
#CarryOnLearning!