Table 2.

Self-report outcome measures

	Time
	Baseline	Preoperative	+ 6 Weeks	+ 12 Weeks
WOMAC Pain
NMES	11.7 ± 2.7	11.4 ± 3.3	7.9 ± 5.9	5.4 ± 4.0 a
Control	10.0 ± 5.7	11.8 ± 4.0	5.4 ± 3.0	5.2 ± 4.3
WOMAC Function
NMES	36.9 ± 11.3	34.7 ± 11.0	29.8 ± 16.9	19.9 ± 13.9
Control	37.0 ± 15.7	38.4 +/- 14.4	24.2 ± 9.9	21.6 ± 11.3
WOMAC Stiffness
NMES	5.0 ± 2.9	5.1 ± 1.8	4.6 ± 2.4	3.2 ± 2.0
Control	4.8 ± 1.6	5.4 ± 1.3	4.6 ± 1.1	3.0 ± 1.4
SF-36 Physical Health
NMES	41.0 ± 22.1	44.4 ± 18.7	35.7 ± 17.0	57.1 ± 18.0 b
Control	39.0 ± 20.8	45.6 ± 17.8	39.0 ± 9.4	57.0 ± 25.2
SF-36 Mental Health
NMES	63.7 ± 18.3	62.3 ± 17.5	58.6 ± 26.0	77.7 ± 14.7 b a
Control	56.4 ± 22.6	68.6 ± 23.1	58.8 ± 19.5	71.0 ± 26.4

Values are means ± SD;

WOMAC - Western Ontario McMaster Osteoarthritis Index; SF-36-Short Form 36

^ap < 0.05 vs. Preoperative; ^bp < 0.05 vs. + 6 Weeks