Table 1.

The location of acupoints in the study.

Acupoints	Location	Operation
ST36 (Zusanli)	Lower lateral knee joint, 3.5 mm below fibula head	Needle perpendicularly with the depth 4-5 mm
ST37 (Shangjuxu)	ST37 was located about 6 mm below ST36 on the hind leg	Needle perpendicularly with the depth 4-5 mm
ST39 (Xiajuxu)	ST39 was located about 12 mm below ST36 on the hind leg	Needle perpendicularly with the depth 4-5 mm
ST25 (Tianshu)	Located lateral to the umbilicus, at the mid-point from the umbilicus to the nipple line	Needle perpendicularly with the depth 5 mm
CV4 (Guanyuan)	Located at the point of 3/5 down the ventral midline connecting the umbilicus to the pubic tubercle	Needle perpendicularly with the depth 5 mm
CV12 (Zhongwan)	Located at the mid-point of the ventral midline connecting the umbilicus to the sternum	Needle perpendicularly with the depth 5 mm