Table 2. Intra-group and inter-group comparison of the pretreatment and post-treatment evaluations of the groups.

	LLLT (–) (n=36) [median (min–max)]	LLLT (+) (n=35) [median (min–max)]	p
VAS activity (pretreat)	8 (7–10)	8 (7–10)	0.631*
VAS activity (posttreat)	4.5 (2–8)	3 (2–5)	<0.001 *
	p<0.001 **	p<0.001 **
LKSS (pretreat)	76.5 (45–90)	78 (55–90)	0.719*
LKSS (posttreat)	52.5 (20–85)	45 (30–65)	0.201*
	p<0.001 **	p<0.001 **
Walking test (pretreat)	80 (40–110)	75 (40–90)	0.187*
Walking test (posttreat)	57.5 (30–100)	45 (25–65)	<0.001*
	p<0.001 **	p<0.001 **
Stair climbing test (pretreat)	65 (35–90)	65 (40–85)	0.333*
Stair climbing test (posttreat)	50 (15–80)	40 (25–65)	<0.001*
	p<0.001 **	p<0.001 **

^*Mann-Whitney U test.

^**Wilcoxon signed-rank test.

LLLT: low-level laser therapy; VAS: Visual Analog Scale; pretreat: pretreatment; posttreat: post-treatment; LKSS: Lysholm Knee Scoring Scale.