Effects of moxibustion on dynorphin and endomorphin in rats with chronic visceral hyperalgesia

Table 1 Abdominal withdrawal reflex scoring criteria

Score
0	No behavioral response to colorectal distention
1	Immobile during colorectal distention and occasionally clicked the head at the onset of the stimulus
2	A mild contraction of abdominal muscles, but not lifting the abdomen off the platform
3	A strong contraction of the abdominal muscles and lifting the abdomen off the platform, not lifting the pelvic structure off the platform
4	Arching body and lifting the pelvic structure and scrotum