Fig. 4. (A) Comparison of TA activity in the sitting and standing positions. (B) Comparison of PL activity during the four conditions (SFE-SIT, SFE-STA, TSO-SIT, and TSO-STA). %MVIC, percentage of the mean maximal voluntary isometric contraction; TA, tibialis anterior; PL, peroneus longus; SFE, short foot exercise; TSO, toe spread-out exercise; SIT, in the sitting position; STA, in the standing position. *p < 0.05, significant difference in main effect. **p < 0.01, significant difference in simple effect.
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