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Fig. 2. Relationship between fiber length and joint angle measured radiographically without (A–C) and with (D–F) sarcomere length normalization. (A) Tibialis anterior (TA) raw fiber length vs ankle angle, (B) Extensor digitorum longus (EDL) raw fiber length vs ankle angle, (C) Soleus raw fiber length vs ankle angle, (D) TA normalized fiber length vs ankle angle, (E) EDL normalized fiber length vs ankle angle, (F) Soleus normalized fiber length vs ankle angle. Regression relationships in A, B and C were statistically significant while those in D, E and F were not. See text for details.