Table 2. Pathological subjects' low back pain intensity, pain location and duration.

Subject id			Pain frequency	Pain loc.	LBP duration (years)
17	1.1	6.2	twice a week	Cp, Lp	4
18	5.9	6.6	continuous	Cp, Lp	3
18	0	0	once or twice a year	Lp	20
20	0	2.4	twice a week	Lp	1
21	7.1	1.9	continuous	Lp	10
22	0.9	0.9	once or twice a mont	Lp	27
23	0.5	0.1	once or twice a year	Lp	2
24	5.1	3.1	continuous	Lp, Thp	4
25	6.3	7.1	continuous	Cp, Lp	22
26	5.3	5.3	continuous	Lp	1
27	0.2	6.4	once or twice a month	Cp,Lp	5
28	6.2	2.8	once or twice a year	Lp	16
29	2.2	4.9	once a month	Cp, Lp	9
30	6.6	8.9	once or twice a year	Lp	7
31	0	5.4	four times a month	Cp,Lp	1
32	2	3.7	continuous	Lp	5
33	0	7.7	continuous	Cp,Lp	30

Low back pain intensity values of the pathological subjects determined by visual analog scale (VAS for group was all zeros). represents the actual pain felt on the day when the subject was measured. represents the pain felt in a period of one month before the measurements. All subjects exhibited different frequency of pain occurence and duration of the symptoms.