/******************************************************************************* CMC Tracking parameters used in generating muscle actuated simulations of movement *******************************************************************************/ stepsize 0.01 /* Time interval at which CMC recomputes the muscle excitations */ initstepsize 0.01 /* Time interval at which CMC recomputes the muscle excitations within the initialization period */ numinitsteps 10 /* Number of steps in which to initialize the CMC tracking controller, prior to starting the forward simulation */ numsubsteps 10 /* Number of output steps in motion file for one stepSize, allows output motion file to be written at higher rate */ kincutofffrequency 10.0 /* Low pass filter cutoff frequency for pre-processing kinematic data, set high if REA was used so as not to smooth dynamically consistent solution */ grfcutofffrequency 10.0 /* Low pass filter cutoff frequency for pre-processing ground reaction force and cp data, set high if REA was used so as not to smooth dynamically consistent solution */ mfdObjFun 2 /* Muscle Force Distribution Objective Function: note - all muscle quantities are weighted by muscle volume 0-sum of muscle volume-weighted activations squared, 1-sum of muscle volume-weighted normalized (by fl*Fo) tendon forces squared, 2-sum of muscle volume-weighted normalized (by fl*Fo) CE forces squared */ /******************************************************************************* TrackGenCoords are the gen coords in the model that CMC will compute muscle excitations to track at any time step the desired generalized acceleration qddot_des = ka*qddot_exp + kv*(qdot_exp-qdot) + kp*(q_exp-q) where _exp represents experimental data qddot_exp - is the experimental acceration stepSize in the future q, qdot - current generalized coordinates and generalized speeds *******************************************************************************/ begintrackgencoords /* Form: gencoord ka kv kp */ knee_flex_r 1. 20. 100. endtrackgencoords /******************************************************************************* The CMC parameters file can be used to specify the range of acceptable muscle excitations and the number of spline points to use in the CMC algorithm when predicting the achievable forces stepSize in the future. Default is used to set the same values for all muscles The minimum and maximum excitations for individual muscles can then be specified over specified time ranges *******************************************************************************/ beginmuscles /* Form: default minExc maxExc numSplinePts */ default 0.01 1.0 11 /* Following form is used to restrict muscle excitations over specified periods of the simulation */ /* Form: muscle minExc maxExc minTime maxTime */ /* For example: */ /* bifemlh_r 0.01 0.011 0.4 0.6 */ /* bifemlh_r 0.01 0.2 0.62 0.65 */ /* Limits bifemlh_r exc u as follows: 0.1