Gait Parameters

Spatio-temporal gait parameters on Step and Walking-Bout (i.e. average) level

Parameter	Naming	Unit	Details
Stride time	stride_time	s
Stance time	stance_time	s
Swing time	swing_time	s
Step length	step_length	m
Stride length	stride_length	m
Gait velocity	gait_velocity	m/s	Ratio \(\frac{step length}{step time}\)

Gait parameters on Walking-Bout (i.e. average) level

Parameter	Naming	Unit	Details
Number of steps	number_of_steps	total number
Cadence	cadence	steps/min	Candence as steps per minute: \(\frac{60s}{t_{last_IC}-t_{first_IC}}* number\ of\ steps\)
Cadence dominant frequency	cadence_dom_freq	steps/min	Cadence based on dominant frequency.
Standard deviation	*_std	Respective unit	Standard deviation over a walking sequence.
Asymmetry	*_asymmetry	Respective unit	Absolute difference between average ipsi- and contralateral parameter
Asymmetry Percent	*_asymmetry_percent	%	Ratio of absolute difference between average ipsi- and contralateral parameter and mean.
Symmetry index	*_si	%	Symmetry index for a parameter: \(2 * \frac{X_{ipsi}-X_{contra}}{X_{ipsi}+X_{contra}}*100\%\)
Coefficient of variation	*_cv		Ration of standard deviation \(\sigma\) to mean \(\mu\): \(\frac{\sigma}{\mu}\)