The conduction velocity distribution histogram of muscle afferents in the control (A) and incision (B) groups. The conduction velocity of group III was >2.5 m/s and ≤30 m/s. For group IV, the conduction velocity was ≤2.5 m/s. The dashed lines separate the two groups. (C) An example recording showing the responses of a group IV afferent from an incised muscle to the indicated von Frey filaments. (D) Distribution of the mechanical receptive fields of group III and IV afferents from the control and the incision groups. (E) Mechanical stimulus–response function of group III afferents in control (n = 5) versus incision group (n = 4). (F) Mechanical stimulus–response function of group IV afferents in control (n = 31) and incision group (n = 52). mN = millinewtons; m/s = meters per second.