Sina Mehdizadeh

6 Questions 10 Answers 0 Followers

Questions related from Sina Mehdizadeh

Initial condition for period 2 gait in simplest dynamic walker?

What are the initial conditions (x0, x0dot) for the simplest passive dynamic walker (introduced by Garcia et al.) to get period 2, 4, etc (not period 1) gait?

10 August 2018 1,079 1 View

What is the interpretation of negative nonlinear Duffing stiffness (-x^3) in limit-cycle models of biologic rhythmic actions?

In modeling biologic rhythmic actions as limit-cycles, it has been reported that a negative Duffing term (i.e. -x^3) represents decreasing of variability near reversal points (or softening...

25 May 2014 7,964 1 View

Can someone advise on a problem in determining the coefficients of a limit cycle model for human movement?

I am trying to propose a limit cycle model for a movement using "W" method. In this regard, I am going to find the coefficients of the proposed model (i.e. diff. equation) using multiple...

21 December 2013 5,936 4 View

Does a smaller maximum Floquet multiplier (maxFM) mean higher orbital stability?

According to Floquet theory, for a system to be orbitally stable, the magnitude of all FMs should be less than 1. However, as I know, it is not mentioned in the literature that if a system with...

18 November 2013 460 1 View

Is orbital dynamic stability important in running?

Many studies have quantified orbital dynamic stability (measured using Floquet Multipliers) in walking. The question is should running also be orbitally stable?

07 October 2013 3,710 5 View

How to fit a quadratic polynomial model to repeated measure analysis with only three data points?

Since three points are not sufficient to perform a quadratic regression, are there other methods for fitting a quadratic model which is capable of testing statistical significance?

23 September 2013 6,948 13 View