HomeRelated ProductsUW-L Gait Data Set

Gait Data Sets 

University of Wisconsin-LaCrosse

Conducted by John D. Willson, PhD & Thomas Kernozek, PhD

Purpose: 

To create a data set of normative gait trials that can also be used to statistically test differences in typical gait parameters that are computed from different marker sets using different methods for locating joint centers;  and,  with different methods to determine the occurrence of events such as heel strike and toe-off.

Method:

Twenty-five young adults with no history of lower extremity deformity were instrumented with passive optical markers in a configuration that would permit creation of alternative marker sets including Helen-Hayes, Cleveland Clinic and Rigid Body Clusters.  Each subject was captured in i) a static pose; ii) during a hip rotation of each leg consistent with the functional method for determining hip joint centers; and iii) during five or more trials of normal gait. The trials were of sufficient duration to compute both left and right side strides.  Force plates captured ground reaction forces during the first stance phase of each stride.  EMG electrodes were used to collect recruitment of right and left vastus intermedius, lateral hamstring, medial gastrocnemius, and tibialis anterior muscles.

Instrumentation:

• Motion Capture: 8 Eagle digital cameras by Motion Analysis Corporation, Santa Rosa, CA
• Force Platforms: 1 Model FP 4060 NC and 1 FP 4080 by Bertec Corporation, Columbus, OH
• EMG: 8 Chanel Bagnoli with DE 2.1 surface electrodes by Delsys Inc, Boston, MA

Demographics:

• Twenty-five subjects 12 female, 13 males
• Average Height females 168.1 cm; males 179.0 cm.
• Weight: females 134.1 pounds; males 178.2 pounds
• Self selected Gait Speed: female 1.59 m/s; males 1.61 m/s

Data Set Formats:

The data sets are available in a variety of formats including:

1. Three sample trials from a single subject available in the "ScholasticSampleFiles" downloaded with The MotionMonitor Scholastic as Gait-Walk1, Gait-Walk2, Gait-Walk3 and Gait-WalkFunctional. The data set is suitable as an introduction to gait and motion capture.
2. Activity files for all 25 subjects imported from C3D using a Helen Hayes marker set. The data set is suitable for use as normative data with The MotionMonitor or The MotionMonitor Scholastic and is available from the product section after logging into your account.
3. Activity files for all 25 subjects including Preference and C3D files of static, dynamic, functional hip and maximum voluntary contraction. The data set is suitable for teaching and testing of model creation and the effects of alternative assumptions. Contact support@innsport.com for details.
4. Activity files of all 25 subjects including Preference and C3D files of static, dynamic, functional hip and maximum voluntary contraction. Also included are EVaRT project files, calibration files, raw video and tracked .trb and .anb files. The data set is suitable for complete reproduction of project data and for testing alternative model assumptions. Contact support@innsport.com for details.

Summary Data:

Data that has been ensemble averaged and normalized to 100 frames of data is available for review in an Excel file comparable to the Appendix of David Winter's text Biomechanics and Motor Control of Human Motion. Data includes position, acceleration and velocity for the lower extremity joints (bilateral hip, knee and ankle). Click here to download the Summary Excel Workbook

Data created by The MotionMonitor's Report Generator which reports data on the 8 phases of gait as defined in Gait Analysis by J. Perry and J. Burnfield is also available in pdf format:       UWL Gait Report

Markers were located to permit creation of multiple marker sets such as Helen Hayes, Cleveland Clinic and Rigid Body Clusters.  Markers were palpated to specific anatomical landmarks commonly used to locate joint centers and to define local coordinate systems.  A complete definition and location of landmarks is included with file documentation.

 Video of a walking trial