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  • Title: Comparison of Treadmill and Overground Walking in Children and Adolescents.
    Author: Jung T, Kim Y, Kelly LE, Wagatsuma M, Jung Y, Abel MF.
    Journal: Percept Mot Skills; 2021 Jun; 128(3):988-1001. PubMed ID: 33567988.
    Abstract:
    The primary purpose of this study was to compare biomechanical gait variables and perceived gait velocity between overground and treadmill walking conditions among typically developing children and adolescents. Twenty children and adolescents (Mage = 11.4, SD = 2.9 years) walked overground and on a treadmill at a matched comfortable walking speed while a 3-D motion analysis system captured spatiotemporal and kinematic gait parameters. In order to compare perceived gait velocities, we acquired data at self-selected comfortable and fastest walking speeds. Paired t-tests comparing the children's speed and gait in these two different walking conditions revealed significantly higher cadence (p < .001) and shorter stride length (p < .002), during treadmill versus overground walking. In addition, treadmill walking showed statistically significant differences in joint kinematics of ankle excursion and pelvic rotation excursions (p < .001). Participants chose slower speeds on the treadmill than for overground walking when they were asked to select their comfortable and fastest walking speeds (p < .001). Our findings suggest that these differences between treadmill and overground walking in cadence, stride length, and perceived gait velocity should be considered whenever a treadmill is used for gait research within the pediatric population. However, the differences we found in gait kinematics between these two walking conditions appear to be relatively trivial and fell within the common error range of kinematic analysis.
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