Exposure to either WBV profile on Day 0 and Day 7 induces a robust decrease in the percent of baseline withdrawal thresholds, taken as increased behavioral sensitivity (ie, a pain response) in the forepaw on Days 1 and 8. On all days, the withdrawal threshold for 8 Hz is less than sham and baseline (*p < 0.01), and on Days 7 and 14, it also is lower than the withdrawal threshold for the 15-Hz WBV (#p < 0.01). In contrast, a 15-Hz WBV exposure lowers the withdrawal threshold compared with sham only on Day 7 (†p < 0.03) and lower than both baseline and sham on Days 1 and 8 (‡p < 0.01) after exposure.