Judged: two independent readers; copy check clear.
contraction
contraction Contraction is the activation and shortening or tightening of a muscle that produces movement or changes body alignment.
Contraction is the activation and shortening or tightening of a muscle that produces movement or changes body alignment. In this source, contraction of the tibialis anterior shifted foot structures upward, backward, and inward, temporarily raising the arch and moving the big toe toward a more inward position.