Aged muscle exhibits a stress response to a single bout of massage. Quantification of HSP70 (A), HSP25 (C), and RBM3 (E) Western blots from 10-mo-old control (n = 6) or CCL-treated (n = 6) rats and 30-mo-old control (n = 6) or CCL-treated (n = 6) rats. Representative images of HSP70 (B), HSP25 (D), and RBM3 (F) Western blots, respectively. Data presented as mean ± SE. βSignificant effect (P < 0.05) of CCL within age (P < 0.05). CCL, cyclic compressive loading; CON, control; HSP, heat shock protein; RBM3, RNA-binding motif 3.