Cover Journal of the American Podiatric Medical Association
Journal of the American Podiatric Medical Association
ISSN:
8750-7315
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Article Type:
Original Articles
Online Publication Date:
Jul 2001

Symmetry of Plantar Pressures and Vertical Forces in Healthy Subjects During Walking

R. Scott VanZant Assistant Professor, Department of Physical Therapy, University of Findlay, Findlay, OH.

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 PhD, PT
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Thomas G. McPoil Professor and Co-director, Gait Research Laboratory, Department of Physical Therapy, Box 15105, Northern Arizona University, Flagstaff, AZ 86011.

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Mark W. Cornwall Professor and Co-director, Gait Research Laboratory, Department of Physical Therapy, Northern Arizona University, Flagstaff, AZ.

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DOI:
https://doi.org/10.7547/87507315-91-7-337
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The purpose of this study was to determine the degree of symmetry for in-shoe plantar pressure and vertical force patterns between the left and right feet of healthy subjects during walking. Thirty subjects with a mean age of 29.6 years participated in the study. Each subject walked a distance of 8 m three times while in-shoe plantar pressure and vertical force data were collected. A total of 12 steps were analyzed for both feet, and maximum vertical force, peak pressure, and pressure-time integrals were calculated for four plantar regions of the foot. No differences in the three variables were noted between male and female subjects. Plantar pressure and vertical force patterns were found to be symmetrical between the left and right feet, except for two of the four plantar regions studied. Only the forefoot and rearfoot regions were found to show significant differences between the left and right feet for plantar pressure and vertical force, respectively. The degree of asymmetry for these two plantar regions in the same foot, however, was minimal. (J Am Podiatr Med Assoc 91(7): 337-342, 2001)

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