Table 2.

Pressure detected in the common carotid artery and buttock (n = 5)

Group (m/s)	Diameter of transient cavity△ (cm)	Pressure in the artery▲ (Kpa)	Pressure in the buttock※ (Kpa)
1000	16.43 ± 1.00	27.35 ± 2.79	650.20 ± 165.57
2000	25.83 ± 3.82 b	35.17 ± 5.23 b	1209.40 ± 432.95
3000	30.00 ± 4.58 a	66.31 ± 14.04 a	2011.40 ± 233.77 b
4000	39.50 ± 6.76 a	144.82 ± 35.01 a	3330.00 ± 494.82 a

^△This diameter was acquired by measured the longest length of the transient cavity in the photo captured by the high speed-camera

^▲This is the highest positive pressure detected in the common carotid artery

^※This is the highest positive pressure detected in the buttocks. Compared to the group of 1000 m/s, a < 0.01, b < 0.05