Hi Marcelo

You mean gait characteristics and postural control? The conceptual model by Sue Lord et al (here on Research Gate) assume the spatio-temporal characteristics of step length asymmetry, mean step width and step width variability within the domain of Postural Control. Check out their paper: Moving Forward on Gait Measurement: Toward a More Refined Approach in Movement Disorders, 26(11) 2013. 

Hope that helps

Mr. Silva,

I would actually suggest that you consider one of the original papers describing the 6 determinants of gait by Saunders et al. (1953).

Saunders, Inman & Eberhart (1953) The Major Determinants in Normal & Pathological Gait. J Bone Joint Surg. 35 (3): 543 - 558.

Hi Marcelo,

There are several aspects of gait you can analyze. It depends on your goals. If your aim is to assess gait variability as a measure of adaptability of the system, or as a measure of risk of injury (it depends on the population analyzed) you can use descriptors as standard deviation of typical spatiotemporal gait parameters, RMS ratio, average standard deviation of each sample of several normalized strides. To assess the complexity of gait related time-series you can use sample entropy or multi-scale entropy. To identify long-range correlations on gait related time-series you can use detrended fluctuation analysis or multi-scale DFA. To assess gait stability you can use local dynamic stability or margin of stability. From a clinical point of view, several events are important such as COM behavior at heel strike, coordination between hip/knee excursion during different gait phases.

You can contact me anytime. I am here in Universidade Federal de Goias/Bioengineering and Biomechanics Laboratory.

Regards,

Marcus

Marcus

good posting.

What about evaluating early midstance to monitor 1st ray activity?