Nonlinear biomechanics Validation of an inertial measurement unit for the quantification of rearfoot kinematics

yeganeh jabari¹

1) Graduate of Mechanical Engineering, Sharif University

IOI Code : XCCE-EGBAZ
Publication : 2nd International Congress On Engineering, Technology and Innovation(eticong.com/2nd)
Abstract :
    Abstract Background: The popular protocol used to study running motion suffers from problems that lead to a limited ability to generalize the obtained results. Inertial measurement units (IMU) appear to be promising in increasing ecological validity of the collected data. However, quantifying running kinematics utilizing IMU signals is complex and potentially affected by several well-established and less well-known errors. Research question: The purpose of this study was to examine the validity of kinematic variables obtained from a single, shoe-mounted IMU using an opto-electronic motion analysis reference system. Methods: 51 recreational runners were analyzed, performing a si istics (Bland & Altman analysis, box plots, scatter plots) were employed to analyze the agreement ngle continuous run at three different speeds (10, 12, 15 km/h) on a treadmill. Descriptive stat between the two instruments. Results: The findings of this study revealed considerable systematic and large random disagreement, which, in turn, is characterized by substantial inter-individual differences in the error distribution. These discrepancies may partly be explained by differences in foot strike behavior, resulting in varying degrees of vibration impact acting on the IMU.. Keywords: inertial measurement unit, validation, rearfoot kinematics, running, biomechanics

Keywords : inertial measurement unit validation rearfoot kinematics running biomechanics