Table of Contents
Metric Compute Gait Signal Stats
These discrete gain metrics are part of the common cohort of Gait Parameters].
Create user defined statistics for a set of signals. The following stats are computed for the signals selected for each side of the body selected.
Signal_Stats
Signal value at Heel Strike
HS Avg - Average value at Heel Strike HS SD - Standard Deviation of the value of the signal at Heel Strike Signal value at Toe Off
TO Avg - Average value at Heel Strike TO SD - Standard Deviation of the value of the signal at Heel Strike Values during Stance Phase
Avg Stance = SD Stance Min Stance Min Stance SD Time at Min Stance (Avg) Time at Min Stance (SD) Max Stance Max Stance SD Time at Max Stance (Avg) Time at Max Stance (SD) Values during Swing Phase
Avg Swing SD Swing Min Swing Min SwingSD Time at Min Swing(Avg) Time at Min Swing(SD) Max Swing Max SwingSD Time at Max Swing(Avg) Time at Max Swing(SD) Occurences of stance, swing, and cycle
Stance (Count) = number of stance phases used Swing (Count)= number of swing phases used Cycle (Count)= number of cycles used.
Command_Dialog
Pipeline_Command
The pipeline command is as follows:
Metric_Compute_Gait_Signal_Stats /SIGNAL_TYPES= ! /SIGNAL_NAMES= ! /SIGNAL_FOLDER=ORIGINAL ! /SIGNAL_COMPONENTS= ! /COMPONENT_SEQUENCE= ! /COMPUTE_LEFT_SIDE= ! /COMPUTE_RIGHT_SIDE= ! /RESULT_FOLDER=SIGNAL_STATS ! /RHS_EVENT=RHS ! /LHS_EVENT=LHS ! /RTO_EVENT=RTO ! /LTO_EVENT=LTO ! /LEFT_SIDE_RESULT_NAME_PREFIX=L_ ! /RIGHT_SIDE_RESULT_NAME_PREFIX=R_ ! /RESULT_NAME_SUFFIX=_Stats ! /APPEND_COMPONENT_TO_RESULT_NAME=FALSE ! /MERGE_COMPONENTS=FALSE ;
Resulting_Signals
Several of the command parameters affect the signal that is created.
Example1
This group of commands results in a metric signal being created in the SIGNAL_STATS folder that is the same name as /Signal_Names parameter and it contains values related to the X-Component of the signal.
/RESULT_FOLDER=SIGNAL_STATS
/APPEND_COMPONENT_TO_RESULT_NAME=FALSE
/RESULT_NAME_SUFFIX=
/COMPONENT_SEQUENCE=X
/MERGE_COMPONENTS=FALSE
Example2
This group of commands results in a metric signal being created in the SIGNAL_STATS folder that appends the string _Stats to the name in the /Signal_Names parameter and it contains values related to the X-Component of the signal.
/RESULT_FOLDER=SIGNAL_STATS
/APPEND_COMPONENT_TO_RESULT_NAME=TRUE
/RESULT_NAME_SUFFIX=_Stats
/COMPONENT_SEQUENCE=X
/MERGE_COMPONENTS=FALSE
Example3
This group of commands results in a metric signal being created in the SIGNAL_STATS folder that appends the string “_Stats_X” to the name in the /Signal_Names parameter and it contains values related to the X-Component of the signal.
/RESULT_FOLDER=SIGNAL_STATS
/APPEND_COMPONENT_TO_RESULT_NAME=TRUE
/RESULT_NAME_SUFFIX=_Stats
/COMPONENT_SEQUENCE=X
/MERGE_COMPONENTS=FALSE
Example4
This group of commands results in a metric signal being created in the SIGNAL_STATS folder that appends the string “_Stats_X” to the name in the /Signal_Names parameter containing values related to the X-Component of the signal; “_Stats_Y” to the name in the /Signal_Names parameter containing values related to the Y-Component of the signals.;“_Stats_Z” to the name in the /Signal_Names parameter containing values related to the Z-Component of the signals..
/RESULT_FOLDER=SIGNAL_STATS /APPEND_COMPONENT_TO_RESULT_NAME=TRUE /RESULT_NAME_SUFFIX=_Stats /COMPONENT_SEQUENCE=ALL /MERGE_COMPONENTS=FALSE
Example5
This group of commands results in a metric signal being created in the SIGNAL_STATS folder that appends the string “_Stats” to the name in the /Signal_Names parameter containing values related to the X-Component of the signal; The resulting signal contains 3 frames of data. The first row is related to the X-Component, the second row is related to the Y-Component and the third row is related to the Z-Component.
/RESULT_FOLDER=SIGNAL_STATS /APPEND_COMPONENT_TO_RESULT_NAME=FALSE /RESULT_NAME_SUFFIX=_Stats /COMPONENT_SEQUENCE=ALL /MERGE_COMPONENTS=TRUE