Table 4.

Comparison of values before and 3 months after treatment of knee osteoarthritis.

Dependent variable	Therapy	Descriptive statistics			p values of ANCOVA
		Mean	Std. deviation	N
Resting VAS diff. Tests 1 and 3	Physio + BEMER	13.03	25.03	20	0.6565
	Physio + placebo	12.2	24.99	20
Exercise VAS val. diff. Tests 1 and 3	Physio + BEMER	14.85	19.81	20	0.6760
	Physio + placebo	13.30	24.59	20
Fatigue GFI diff. Tests 1 and 3	Physio + BEMER	4.22	8.54	16	0.0235
	Physio + placebo	−3.30	8.52	11
Physical functioning nbs diff. Tests 1 and 3	Physio + BEMER	−2.27	6.49	16	0.8051
	Physio + placebo	−3.68	6.96	13
Role physical nbs diff. Tests 1 and 3	Physio + BEMER	−1.89	13.91	19	0.8724
	Physio + placebo	−5.28	13.50	17
Bodily pain nbs diff. Tests 1 and 3	Physio + BEMER	−6.41	8.90	18	0.3015
	Physio + placebo	−3.38	6.08	18
General heath nbs diff. Tests 1 and 3	Physio + BEMER	−5.12	8.08	18	0.4666
	Physio + placebo	−1.43	3.69	12
Vitality nbs diff. Tests 1 and 3	Physio + BEMER	−5.78	8.61	18	0.0079
	Physio + placebo	2.55	6.98	14
Social functioning nbs. diff. Tests 1 and 3	Physio + BEMER	−1.47	10.45	17	0.5787
	Physio + placebo	−0.30	11.14	17
Role emotional nbs diff. Tests 1 and 3	Physio + BEMER	−6.55	13.14	17	0.0371
	Physio + placebo	−1.74	15.98	16
Mental health nbs diff. Tests 1 and 3	Physio + BEMER	−3.76	12.16	16	0.1842
	Physio + placebo	5.67	8.63	12
Physical component summary diff. Tests 1 and 3	Physio + BEMER	−4.50	12.57	12	0.6942
	Physio + placebo	−3.20	4.22	5
Mental component summary diff. Tests 1 and 3	Physio + BEMER	−6.41	11.74	12	0.1940
	Physio + placebo	2.47	11.81	5
WOMAC “A” diff. 1-3	Physio + BEMER	11.55	18.26	20	0.7254
	Physio + placebo	12.53	21.92	18
WOMAC “B” diff. 1-3	Physio + BEMER	9.60	21.21	20	0.3888
	Physio + placebo	13.44	31.24	18
WOMAC “C” diff. 1-3	Physio + BEMER	8.98	20.77	20	0.7020
	Physio + placebo	8.51	21.09	18
WOMAC total diff. 1-3	Physio + BEMER	8.45	17.92	20	0.4711
	Physio + placebo	10.15	18.97	18