Table 3.

Mean/Median Stair Performance

Instrument	HAI				SAI
Condition	Uphill		Downhill		Ascent		Descent
Time (sec)	mean	SD	mean	SD	mean	SD	mean	SD
Trial 1	4.71	0.86	4.80	1.14	4.95	1.01	3.82	0.97
Trial 2	4.71	0.99	4.74	1.19	5.15	1.62	3.72	0.80
Trial 3	4.72	1.03	4.78	1.40	4.68	1.33	3.61	0.80
% diff	0.11%	--	1.07%	--	6.72%	--	2.76%	--
Score	mean	median	mean	median	mean	median	mean	median
Trial 1	10.8	11.0	10.9	11.0	9.7	11.0	12.0	11.0
Trial 2	10.8	11.0	10.9	11.0	9.9	11.0	11.7	11.0
Trial 3	10.8	11.0	10.9	11.0	10.1	11.0	11.8	11.0