Figure 4

Analgesic effects of pregabalin on muscle pressure pain threshold (MPPT) in chronic post-cast pain rats (A–D). Pregabalin was orally administered before the muscle pressure test at 1 (A,B) and 3 (C,D) weeks after cast removal. Bars represent mean values ± standard error of the mean (n = 5–6). ^###P < 0.01 relative to the untreated group (Student’s t-test).