Fig. (2) Effects of vibration exercise on the blood lactate concentrations. HVT = high-amplitude vibration; LVT = low-amplitude vibration; CON = nonvibration treatment; GXT = graded exercise test; Pretest = rest before the GXT; Treatment = vibration or nonvibration treatment; Post-30 min = 30 min after treatment; Post-60 min = 60 min after treatment. *p < 0.05, significant differences between HVT and CON; ‡p < 0.05, significant differences between LVT and CON. Values are mean ± SD.