Effects of Two Marker Placement and Data Analysis Methods on Running Gait Analysis

• Main Author: Becker, James N. M., 1979-
• Language: en_US
• Published: University of Oregon 2010
• Subjects: Gait in humans
• Online Access: http://hdl.handle.net/1794/10470

xiii, 143 p. : ill. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number. === This study evaluated the effects of two marker placement methods and two data analysis methods on running gait analysis. Markers placed on the shoe heel counter were compared with markers placed directly on the calcaneous and visible through heel windows cut into the shoe. When analyzed using a traditional group design no significant differences were found between marker conditions for rear foot eversion excursion, percent stance at which peak eversion occurred, maximal instantaneous eversion velocity, or maximal instantaneous vertical loading rate. Ankle frontal plane variability was significantly different between conditions. When analyzed with a single subject design some individuals demonstrated significant differences between conditions while others did not. In some individuals the heel windows condition revealed previously masked coupling parameters thought to be related to injury. The results of this study suggest the heel windows method and single subject analysis should be used for a longitudinal study of runners. === Committee in Charge: Dr. Li-Shan Chou, Chair; Dr. Louis Ostemig; Dr. Stanley James