Glossary of Terms: DigiGait

Below is a table that defines some of theterms commonly used here at Mouse Specifics, Inc. This table includes termsrelevant to the DigiGait.  

Term Definition
Ambulation Walking
Ambulatory Ability to walk
Balance The steadiness with which an animal is able tomaintain its posture
Chassis The main superstructure of the DigiGait treadmillhardware
Coordination The recruitment sequence of the limbs that enable itto ambulate
Excrement Collection Bins On either end of the treadmill, removable pockets thatcollect excrement from subjects on the moving belt
Frame Rate Speed at which an image capture device [camera] records a picture [measured in frames per second (FPS)]
Gait Manner of walking
Gait Analysis Assessment of walking. This can be qualitative or quantitative. Both have their place. Quantitative makes it easier to track changes
Gait Signal The waveforms that are rendered by the plotting of thepaw areas relative to the treadmill belt over time, representing the history ofthe paw loading, beginning with heel down, advancing to the total loading ofthe foot, end ending with the lift off of the toe.  This repeats, in a walking mouse, for each ofthe 4 feet and legs.
Illumination Panels The DigiGait lighting; there are three – two insidethe chassis, and one atop of the walking compartment.  All three are important; the one atopmaintains uniform back lighting to improve gait signal quality
Kinematics How the limbs move during walking or running
Overground Refers to voluntary walking, whereby subject itself determinesits walking speed
Paresis Condition of muscular weakness caused by nervedamage or disease; partial paralysis
Posture How the animal positions its body and limbs duringambulation
Strength Relates to the muscle capacity of the subject to slowdown, speed up, or maintain speed
Treadmill Locomotion Refers to walking on a treadmill, whereby the motorspeed that turns the belt dictates the speed of the subject; this is the typeof walking that DigiGait utilizes
Walking Compartment Chamber atop of the moving treadmill belt that corralssubject to maintain it within view of the camera