The Event_Maximum command is used to detect the maximum value of a specified signal within a defined event sequence or range and create an event at that location. This command can evaluate different components of a signal (X, Y, Z, Residual) and can apply offsets to shift the detected event if needed.

• Useful for identifying peak forces, peak joint angles, or maximum accelerations during specific phases of a motion, such as between initial contact and toe-off during gait.

Event_Maximum
/RESULT_EVENT_NAME=
! /SIGNAL_TYPES=
! /SIGNAL_FOLDER=ORIGINAL
! /SIGNAL_NAMES=
! /SIGNAL_COMPONENTS=
! /FRAME_OFFSET=0
! /TIME_OFFSET=
! /EVENT_SEQUENCE=
! /EXCLUDE_EVENTS=
! /EVENT_SEQUENCE_INSTANCE=0
! /EVENT_SUBSEQUENCE=
! /SUBSEQUENCE_EXCLUDE_EVENTS=
! /EVENT_SUBSEQUENCE_INSTANCE=0
! /EVENT_INSTANCE=0
! /FRAME_WINDOW=8
! /THRESHOLD=
;

Specify an Event Label(s) at the specified local Maxima of a signal.

If the global maxima are needed, see the Event_Global_Maximum command

To review the difference between local and global maximum values please see here.

In version 5 the command has been extended to include the Event_Sequence and Exclude_Events parameters.

Event_Maximum /RESULT_EVENT_NAME=EVENT_MAX /SIGNAL_TYPES=TARGET /SIGNAL_FOLDER=ORIGINAL /SIGNAL_NAMES=LFT2 /SIGNAL_COMPONENTS=Z /FRAME_OFFSET=0 /TIME_OFFSET= /EVENT_SEQUENCE= /EXCLUDE_EVENTS= /EVENT_SEQUENCE_INSTANCE=0 /EVENT_SUBSEQUENCE= /SUBSEQUENCE_EXCLUDE_EVENTS= /EVENT_SUBSEQUENCE_INSTANCE=0 /EVENT_INSTANCE=0 /FRAME_WINDOW=8 /THRESHOLD=0.14 ;

Other options within the command such as Exclude Event, and Select Subsequence are explained in detail on the Event_Global_Maximum page.

If /Threshold is empty, all local maximum are identified.

If /Threshold has a value or expression, only local maximum that are greater than the threshold are identified.

To create the RKFlex_MaxLocal event using the Event_Maximum dialog box:

1. Enter information into dialog box: Event_Name: RKFlex_MaxLocal Select Frame Offset:0 Signal Components:X Select an event sequence and Instance for the range: Event Sequence Instance:0 Defined Events:RHS + RHS Click OK

2. Select desired signal: Select signal from data tree Right_Knee_Angle Click Import Selected Signals

RKFlex_Max will be created at the minimum value during the gait cycle within the specified frame window.

Other options within the command such as Exclude Event, and Select Subsequence are explained in detail on the Event_Global_Maximum page.

\\ Event_Maximum\\ /Signal_Types=The type of signal to be evaluated\\ /Signal_Names=The names of the signals to be evaluated\\ /Signal_Folder=The name of the signal folder\\ /Event_Name=The name to be given to the threshold event\\ /Select_X=(True or False)Use this component of the signal\\ /Select_Y=(True or False)Use this component of the signal\\ /Select_Z=(True or False)Use this component of the signal\\ /Frame_Window=The range of frames of data that must be below the maximum\\ /Start_At_Event=The search begins from the start event\\ /End_At_Event=The search ends at the end event\\ /Event_Instance=\\ ;\\

Dialog that pops up when pipeline selection is edited by double clicking with the left mouse button.

Event Instance: There may be several local maxima. A value of 0 results in all maxima being assigned a label. A positive number indicates the event (in sequence) to select. A negative number indicates the event starting from the last event and progressing to the first event.