EffortMeasure

Measures the energy consumption of a model during simulation, according to various models.

Supported effort models:

  • Constant: constant energy measure
  • TotalForce: total muscle force
  • Wang2012: metabolic energy measure as defined in [Wang et al. 2012]
  • Uchida2016: metabolic energy measure as defined in [Uchida et al. 2012]
  • SquaredMuscleStress: summed squared muscle stress: (force / PCSA)^2
  • SquaredMuscleActivation: summed squared muscle activation: (activation)^2

This can also be used for cost-of-transport, using the use_cost_of_transport parameter.

Inherits from Measure.

Public Attributes

Parameter Type Description
measure_type EnergyMeasureType Energy model to be used, can be: TotalForce, Wang2012, Uchida2016, or Constant; default = UnknownMeasure.
use_cost_of_transport bool Flag indicating to use (energy / distance) as a result; default = 0.
specific_tension Real Value to use for specific tension; default = 0.25e6.
muscle_density Real Value to use for muscle density; default = 1059.7.
default_muscle_slow_twitch_ratio Real Default slow / twitch ratio if not defined per muscle (used by Uchida2016); default = 0.5.
use_symmetric_fiber_ratios bool Indicate if fiber ratios are the same for left and right (used by Uchida2016); default = true.
min_distance Real Minimum distance used for cost of transport computation; default = 1.0.
name String Name of the Measure, to be used in reporting; defaults to measure type.
weight Real Weighting factor applied to the result of the measure; default = 1.
threshold Real Threshold above / below which the measure becomes zero; default = 0.
threshold_transition Real Transition range above threshold between which the measure linearly decreases to zero; default = 0.
result_offset Real Offset added to measure result; default = 0.
minimize bool Indicate whether this measure should be minimized; default value depends on the measure type (usually true).
start_time TimeInSeconds Time [s] at which Controller becomes active; default = 0.
stop_time TimeInSeconds Time [s] at which Controller becomes inactive; default = until simulation ends.
signature_prefix String Prefix signature with custom string. Special tags: DATE_TIME, DATE_TIME_EXACT, SCONE_VERSION.
signature_postfix String Append custom string to signature. Special tags: DATE_TIME, DATE_TIME_EXACT, SCONE_VERSION.

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