User guide

Charnwood Dynamics Ltd. Coda cx1 User Guide – Gait Analysis II - 2
CX1 USER GUIDE - COMPLETE.doc 26/04/04 78/162
4. Calculates gait-cycle parameters and exports them to other Applications (e.g. an
Access database) via the Windows Clipboard.
The gait-cycle parameters are calculated only when the Active file has been added to
the database Table (Data Files), and when a primary gait cycle has been defined for
the left and/or right data. Gait cycles are defined by the user either in Codamotion
Analysis or in Motion Database. Cycle markers defined in Codamotion Analysis are
permanently stored in the MDF data file; cycle markers defined in Motion Database
are temporary - they cannot be saved in the MDF file.
There is a configurable list of gait parameters which may be placed on the Windows
Clipboard. This list is a sub-set of the fields defined in the Data Files database Table; it
is defined by the user with the Database: Gait Parameters... menu command. The
parameters are placed onto the Clipboard by clicking the ‘Copy Gait params...’ button
in the main PDB View window.
The Motion Database application program does not include functions for calculating
derived data from the marker position and force data stored in an MDF file. To plot
graphs of joint angles, moments and powers, it is necessary to store this derived data in
the MDF using the extended Save options in Codamotion Analysis (File: Save As...)
before the MDF file is opened in Motion Database.
The Motion Database PDB file contains both the Patient Database table(s) and the graph
definitions.
WARNING!
Don’t confuse MotionDB [Patient] Database files (*.PDB) with Codamotion Analysis
movement data files (*.MDF). When MotionDB is started it automatically loads the last-
used database file; if you want a different one (to get a different set of graph and/or
database table defintions), use the File: Open Database... menu command.
A Codamotion Analysis data file is loaded into MotionDB with the Open button in the main
PDB Form View - it will then be included in the Active Data File list (which is always empty
initially). The Data Files Table may of course include MDF files which are not active (and
possibly not available to open). The MotionDB File: Save Database function re-saves the
PDB database file, not the MDF data files; there is no MDF file-save function at present.
Procedure I - in Codamotion Analysis
1. Close any datafiles already open
[not necessary if the File: Auto Close on Open option is on (checked)]
2. Load the appropriate Setup (Setup: Load Setup...) if not already loaded.
The Setup must match the marker set used in the data acquisition, and will be different
for Left & Right unilateral acquisitions. (SG_Left.stp or SG_Right.stp for unilateral
segmental gait analysis)
The Setup filename appears on the main title bar.