Table S1.

Dimensions of available measurement instruments for analysis of the 4 stair climb test.

	Ideal (Sammons Preston)Used in numerous clinical trials	Standard Leonardo Stair C Mechanography device - commercial available (Novotec GmbH)	Custom build stair Leonardo Stair C SP Mechanography device - used in this study
Height of steps	6` = 15.2 cm	4.7‘ = 12.0 cm	5.9‘ = 15.0 cm
Depth of steps	11` = 27.9 cm	7.5‘ = 19.0 cm	11.0‘ = 28.0 cm
Width of steps	36` = 91.4 cm	31.9‘ = 81.0 cm	31.9‘ = 81.0 cm
Height of railing	24‘ = 61.0 cm	24.4‘ = 62.0 cm	22.4‘ = 57.0 cm
Depth of plateau (upper plateau)	30‘ = 76.0 cm	24.4‘ = 62.0 cm	22.4‘ = 57.0 cm
Depth of plateau (lower Plateau)	-	15.4‘ = 39.0 cm	15.4‘ = 39.0 cm
Steps	4	4	4