1. Gait pattern classification of healthy elderly men based on biomechanical data 
Eric Watelain, PhD, Franck Barbier, PhD, Paul Allard, PhD, PEng, André Thevenon, MD, Jean-Claude Angué, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 81, Issue 5, Pages (May 2000)
DOI: /S (00)
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig. 1
Dendrogram representing the minimum variance hierarchical classification of the gait patterns of healthy young and elderly men. Four groups (families) are labeled Y1 for the young-men's family, and E1 to E3 for the 3 elderly-men families. The figure is read from the bottom, where the individual trials are listed, in 4 families, to top, where all the gait trials are grouped into a single family.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /S (00) )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig. 2
Ankle, knee, and hip muscle power curves developed in the (A) sagittal, (B) frontal, and (C) transverse planes by the Y1, E1, E2, and E3 families, over which the standard deviation of the Y1 family is overlaid in bold.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /S (00) )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

4. Fig. 3
Peak muscle powers found statistically different across all or some gait families by a one-way analysis of variance on the sagittal, frontal plane for the hip, knee, and ankle: * denotes a statistical difference (p <.05).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /S (00) )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

5. Fig. 4
Peak muscle powers found to be statistically different across all or some gait families by a one-way analysis of variance on the frontal and transverse planes for the hip, knee, and ankle: * and † denote a statistical difference (p <.05).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /S (00) )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions