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Gait-in-Aging-and-Disease
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Gait in Aging and Disease Database

Jeffrey Hausdorff, Patrick Purdon, Chung-Kang Peng

Published: Oct. 13, 2000. Version: 1.0.0

Citation

Please include the standard citation for PhysioNet:
Goldberger, A., Amaral, L., Glass, L., Hausdorff, J., Ivanov, P. C., Mark, R., ... & Stanley, H. E. (2000). PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation [Online]. 101 (23), pp. e215–e220.

Data Description

Walking stride interval time series are included for 15 subjects:

  • 5 healthy young adults (ages 23–29)
  • 5 healthy old adults (ages 71–77)
  • 5 older adults with Parkinson's disease (ages 60–77)

The file names indicate subject group: o for old, y for young, and pd for Parkinson’s disease. For young and old, the filename also includes the age in years.

Subjects walked continuously on level ground along an obstacle-free path. Stride intervals were measured using ultra-thin, force-sensitive resistors placed inside the shoe. The analog signal was sampled at 300 Hz using a 12-bit A/D converter with an ankle-worn microcomputer. Time between foot strikes was then automatically calculated using a validated method consistent with force-platform measurements.

Data collection:

  • Healthy subjects walked for 15 minutes in a circular path
  • Parkinson’s subjects walked for 6 minutes in a hallway

Files

You may download:

  • gait-data.tar (150K) - full dataset as a UNIX tar archive
  • gait-data.tar.gz (47K) - compressed version

Each file includes two columns:

  • Column 1: Time (seconds)
  • Column 2: Stride interval (seconds)

Data is also available in PhysioBank format with annotation (.str) and header (.hea) files, for viewing or analysis using PhysioToolkit.

References

  • JM Hausdorff et al., Fractal dynamics of human gait, J Appl Physiol 80:1448–1457, 1996.
  • JM Hausdorff et al., Altered fractal dynamics of gait, J Appl Physiol 82:262–269, 1997.
  • JM Hausdorff et al., Gait variability and basal ganglia disorders, Mov Disord 13:428–437, 1998.

More Information

A mini-tutorial and database introduction is available on the Reylab website. For more details, please contact JM Hausdorff.