The following brief tour includes a series of screen shots from each of the KAPro program components:

KAVideo - Video capture, processing, digitizing and file maintenance
KA2D - Analysis of two dimensional kinematic (linear, angular and joint angle) data
KA3D - Analysis of three dimensional kinematic (linear, angular and joint angle) data
JtCalc (Joint Torque Calculation) - Analysis of GRF and ankle, knee and hip joint torques in running, jumping and leaping motions
Hydrodynamic Analysis (HA) - Analysis of swimming arm stroke propulsion
Ball Flight - Analysis of projectile motions
VecCalc - Vector algebra calculation software (with ties to the KA3D software)

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KAVideo Main Menu

The KAVideo Menu is used to capture process and digitize information from AVI format video files:

The KAVidCap program captures DV video via the PC's firewire port. The Process option allows students to download image sets to a CD-R disk for use on their home PCs. The DG and ReDG are used to set the XY coordinate values of the body landmarks in your projects.

KA2D Programs

The KA2D program allows you to inspect video, stick figure and kinematic data from your own research or from image sets in the SFSU Movement Library:

When a mouse button is pressed, the video image, stick figure and kinematic data plot values are animated. Playback speed is nearly 100% of real time on a Pentium IV PC. The Point, Segment and Joint command buttons allow you to inspect dozens of kinematic variables from your project.

KA KA3D Programs

The KA3D program allows you to inspect video, stick figure and kinematic data in a 9 viewport full screen window:

The normal, single file viewing mode shows the front and side view video images, researcher and subject information, front, side and overhead stick figure views, XYZ coordinate data, and velocity and acceleration function plots. Any point, segment or joint variable may be selected for display. The KA3D and KA2D programs also allows you to inspect your data in side by side, file compare mode:

Kinematic data for any point, segment, or joint in your project can be selected for display through pull down menu and hot key options. See the KAVideo and KA3D tour for more details on the modules in these parts of the KAVideo Suite.

JtCalc

The Joint Torque Calculation software displays the ground reaction forces and leg joint torques for running, jumping and leaping projects. Ground reaction force values are read from force plate data files or are computed from CG acceleration data. Eligible files are prepared through the KA2D MakeJTD option.

The 3Free body diagram format is shown above. Other program window configurations show the joint torque, joint angle rate of change and joint muscle power for an individual joint. The software also displays the data for two trials in side by side file compare mode.

Hydrodynamic Analysis

The Hydrodynamic Analysis (HA) software displays swimming arm pull hand propulsive force measures:

The figure above shows the video images and 3 wire frame diagrams for the arm pull (front view, side view and bottom view). The hand force lift, drag and resultant force components are shown in each wire frame diagram. The hand resultant and effective resultant force components are plotted as a function of time in the lower right corner viewport. The software can also show the data for two trials in side by side, file compare mode.

BallFlight

The BallFlight software displays projectile motion for as many as 5 projectiles. The projection angles and initial velocity are user selectable.

VecCalc

The VecCalc software is a spreadsheet-like program for use in the calculation of  a variety of vector algebra operations. Data can be entered directly into VecCalc from the keyboard or imported (through a wizard-like operation) from KA3D.