Efficacy of a progressive walking program and glucosamine sulphate supplementation on osteoarthritic symptoms of the hip and knee: a feasibility trial

Table 3 Median scores and interquartile ranges for the main study outcomes

		Week
		0	6	12	18	24	6-24
Physical activity (min/week)	25 ^th	20.00	30.00	150.00	197.50	120.00	z	2.88
	Median	55.00	100.00^a	225.00^b	352.50^c	190.00^d	P	<0.001
	75 ^th	108.75	221.25	360.00	555.00	405.00	r	0.38
Physical function Self-paced step test (seconds)	25 ^th	92.50	75.00	68.25	60.50	58.50	z	-4.62
	Median	104.00	90.50^a	79.50^b	73.50^c	70.00^d	P	<0.001
	75 ^th	129.75	102.50	90.25	81.50	75.75	r	0.62
WOMAC measures
Arthritis pain	25 ^th	11.00	8.00	5.00	5.25	3.25	z	-2.61
	Median	15.50	15.00	12.50^b	12.00	9.00	P	0.01
	75 ^th	24.75	24.75	19.00	19.00	14.00	r	0.35
Stiffness	25 ^th	7.25	3.50	3.25	4.00	3.25	z	-1.87
	Median	10.00	7.00^a	7.00	5.50	5.00	P	0.06
	75 ^th	14.00	12.00	11.00	10.75	9.50	r	0.25
Physical function	25 ^th	44.25	26.50	13.00	12.00	15.75	z	-3.11
	Median	63.50	58.00^a	36.50^b	33.00	35.00	P	<0.001
	75 ^th	86.50	78.25	80.50	60.50	57.00	r	0.42
Pain after step test	25 ^th	9.25	6.25	1.50	1.88	0.25	z	-3.11
	Median	15.00	11.50	7.50^b	8.50	4.50	P	<0.001
	75 ^th	24.75	22.00	16.00	15.00	13.25	r	0.42
Total index	25 ^th	61.50	36.50	29.00	23.13	23.50	z	-2.95
	Median	89.50	77.50^a	53.00^b	48.00	51.50	P	<0.001
	75 ^th	123.75	119.00	111.50	85.25	80.00	r	0.39

Note. Z scores, P-values and effect sizes (r) for changes between Weeks 6 and 24 are shown in the right hand column.
^a Week 6 significantly different from Week 0.
^b Week 12 significantly different from Week 6.
^c Week 18 significantly different from Week 12.
^d Week 24 significantly different from Week 18.
r = Effect size; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.

ISSN: 1478-6362