Gait and Motion Analysis Laboratory
Extensive measurements of legs and pelvis are taken.
Reflective markers are placed over specific bony landmarks on the body. These markers are attached to the skin using adhesive tape or elastic wrapping. The subject walks on the walkway/treadmill. The markers are tracked in motion by a twelve-camera optoelectronic motion capture system (capturing at 500Hz) and integrated digital video recording system (capturing at 250Hz). Forceplates in the walkway/treadmill gather kinetic data as the subject walks over them (capturing at 1000Hz). A computer workstation equipped with a full suite of motion analysis software permits the gait data to be analyzed. Kinematic and kinetic data are integrated for mechanistic analysis and modeling. Gait analysis allows us to explore the underlying mechanism of the determinants of gait. We have used model-based techniques extensively to explore fundamental issues of gait biomechanics and explore the relationships between gait impairments and functional disabilities. These combined approaches provide a foundation for developing methods of elucidating the mechanism by which specific impairments produce disabilities and specific interventions act to reduce those disabilities.