The data here were collected in 2011 at the Human Mobility Research Lab in Kingston, ON.  The protocol was performed by 14 healthy, recreationally active adults (seven females, seven males) with no reported impairments to their walking ability in the year prior to data collection.

Subjects had the following descriptive characteristics (mean±SD):

  • Age: 25±11 years (range 21-58)
  • Height: 1.73±0.11 m (range 1.52-1.96)
  • Body Mass72.4±13.6 kg (range 53.2-96.3)
  • Walking Speed: 1.45±0.14 m/s (range 1.17-1.65)
  • Stride Length: 1.44±0.14 m (range 1.23-1.70)
  • Stride Frequency: 1.02±0.10 Hz (range 0.89-1.23)

The experimental setup consisted of a level 15-m walkway surrounded by 14 optical motion capture cameras (Oqus 400, Qualisys).  The middle 2.4 m of the walkway were instrumented with four tandem strain gauge force platforms (BP, AMTI).  Each subject performed five trials of walking at a self-selected "normal and comfortable" speed while wearing spandex clothing and a set of retro-reflective motion capture markers:

Visual3D software was used to process the measured marker position and GRF data.  Motions of the pelvis and lower limb joints were calculated by 6DOF kinematic analysis and a rigid-body linked-segment model scaled to each subject.  Resultant joint kinetics were calculated by recursive inverse dynamics analysis using the same model. Details on these calculations are included in the following appendices: [ kinematics details | kinetics details ]. The processed data were averaged over all complete strides within a subject, then averaged across subjects to produce normative means and standard deviations.