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