Table 2.

Acupuncture practitioner's perception scale.

Instruction: check the intensity of the feeling of the tissue felt through the needle and needling fingers (0: none, 6: strongest imaginable).
Thick feeling	0	1	2	3	4	5	6
Tangled feeling	0	1	2	3	4	5	6
Solid feeling	0	1	2	3	4	5	6
Empty feeling	0	1	2	3	4	5	6