A method, a system and a computer program product for estimating positions of a subject's feet and centre of mass relative to each other

Mohamed Irfan Mohamed Refai (Inventor), Petrus H. Veltink (Inventor), Bernhard J.F. van Beijnum (Inventor), Jaap Hilbert Buurke (Inventor)

Research output: Patent

5 Downloads (Pure)

Abstract

The invention relates to a method for estimating positions of a subject’s feet and centre of mass relative to each other during gait. The method comprises a step of collecting measurement data from a first inertial measurement unit located at a first foot or first shank of the subject, from a second inertial measurement unit located at a second foot or second shank of the subject, and from a third inertial measurement unit located at a pelvis of the subject. Further, the method includes a step of evaluating relative positions of the first and second foot and the center of mass of the subject over time, using the measurement data of the first, second and third inertial measurement unit. The method may include a step of applying the assumption that a moment around a center of mass of the subject vanishes for determining an estimation of relative foot positions.
Original languageEnglish
Patent numberWO 2021/010832 A1
IPCA61B 5/11,A61B 5/00
Priority date15/07/19
Filing date15/07/20
Publication statusPublished - 21 Jan 2021

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