The kinematics of the swing phase obtained from accelerometer and gyroscope measurements


Heyn, Andreas and Mayagoitia, Ruth E. and Nene, Anand V. and Veltink, Peter H. (1996) The kinematics of the swing phase obtained from accelerometer and gyroscope measurements. In: 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Bridging Disciplines for Biomedicine, 31 Oct.-3 Nov. 1996, Amsterdam, Netherlands (pp. pp. 463-464).

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Abstract:The kinematics needed to calculate the knee moment during the initial swing phase were obtained from a set of eight leg-mounted uni-axial accelerometers and two gyroscopes. The angular and linear accelerations of shank and thigh were calculated from the signals of two accelerometers mounted on each of the leg segments directed tangentially and radially to the movement. The angular velocities of shank and thigh were measured by the gyroscopes. The absolute angles of shank and thigh were obtained by integration of the gyroscope signal plus an added offset angle, estimated from radial and tangential accelerometer signals registered while standing. Movement was assumed to be in the saggital plane. The accuracy of the quantities found from the leg mounted sensors was calculated in terms of correlation and the RMS error by comparing against measurements obtained by a VICONTM system. The results were indistinguishable. The system was later applied in research measurements
Item Type:Conference or Workshop Item
Copyright:©1996 IEEE
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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