Table 3.

Gait and postural assessments performed in this study. Walking parameters indicative of various locomotor aspects (e.g. stability, asymmetry, variability) were assessed at gait speeds of 1 km/h, 2 km/h and 3 km/h (subtable on the top).

Spatio-temporal kinetic gait parameters
Locomotor domain	Gait parameters	Units
Limb excursion	Step length (left, right)	mm
	Step time (left, right)	ms
Gait phases	Stance phase (left/right)	%
	Swing phase (left/right)	%
	Double-limb support	%
Stability	Step width	mm
Asymmetry	Step length asymmetry	%
	Step time asymmetry	%
	Swing phase asymmetry	%
Variability	COV step length (left, right)	%
	COV step time (left, right)	%
	COV step width	%
	CoP variability ant-post	mm
	CoP variability med-lat	mm

Clinical walking tests
Test	Readouts	Units
Timed 25-foot walk (T25FW)	Maximal walking speed	s
6-min walk test (6MWT)	Short-term endurance	m
Timed-up and go (TUG)	Mobility, daily walking function	s
Functional gait assessment (FGA)	Dynamic stability, balance	Points

Postural stability measures
Test	Stability measures	Units
Normal stance (feet 20cm apart)	Sway velocity	mm/s
	Sway area (95% confidence)	mm2
Romberg stance (eyes open)	Sway velocity	mm/s
	Sway area (95% confidence)	mm2
Romberg stance (eyes closed)	Sway velocity	mm/s
	Sway area (95% confidence)	mm2

Four clinical walking tests were assessed to quantify patients’ walking performance (intermediate table). Three different postural test conditions were performed to measure patients’ postural stability (table at the bottom). CoP center of pressure, COV coefficient of variance, mm millimeter, min minute, ms milliseconds.