181k views
4 votes
Muscle fibers move back and forth during _____.

a. rest
b. exercise
c. a static stretch

User Aseolin
by
9.2k points

2 Answers

3 votes

exercise.................

User Ramasamy Kandasamy
by
9.0k points
3 votes
b.exercise because static stretch and rest aren't physical which wouldnt move muscles
User Mando
by
8.5k points
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