Fig. 2

Lengthening contraction-induced structural damage in the muscle. a Hematoxylin–eosin staining of the entire cross-section cut from the mid-belly of the tibialis anterior muscle (TA) at 2 days after LC. S, D, M, and L; Superficial, deep, medial, and lateral side of the TA, respectively. b Enlarged image of the area (box in a indicated by the arrow. Necrotic myofibers and infiltration of accumulating mononuclear cells are noted