Effects of lower body positive pressure treadmill on functional improvement in knee osteoarthritis: A randomized clinical trial study

Table 2 Comparisons of clinical assessment parameters within group (between pre- and post-treatment) and among groups (between lower body positive pressure group and conventional group)

	LBPP group		Conventional group		P1 value	P2 value	P3 value	P4 value
	Pre-treatment	Post-treatment	Pre-treatment	Post-treatment
WOMAC (scores)	70.25 ± 13.93	40.50 ± 11.86	69.20 ± 8.88	48.10 ± 8.67	< 0.001	< 0.001	0.848	0.135
VAS (scores)	3.88 ± 0.99	1.63 ± 0.52	3.80 ± 0.79	2.60 ± 0.70	< 0.001	< 0.001	0.860	0.005
Knee AROM (degree)	112.50 ± 10.13	119.88 ± 8.71	110.00 ± 7.69	115.70 ± 7.50	< 0.001	< 0.001	0.559	0.290
ADL (scores)	92.50 ± 5.98	94.38 ± 5.63	91.50 ± 4.74	93.00 ± 4.22	0.197	0.081	0.697	0.561

¹Stands for comparison within lower body positive pressure (LBPP) group between pre-treatment and post-treatment.

²Stands for comparison within conventional group between pre-treatment and post-treatment.

³Stands for comparison among groups for pre-treatment between LBPP group and conventional group.

⁴Stands for comparison among groups for post-treatment between LBPP group and Conventional group.

LBPP: Lower body positive pressure; WOMAC: Western Ontario and McMaster Universities Index; VAS: Visual analogue scale; AROM: Active joint range of motion; ADL: Activity of daily living.