A magnetometer-based approach for studying human movements.
This paper investigates the use of body-mounted magnetic field sensors for the analysis of certain human movements. We demonstrate that, in several usual dynamic situations, magnetometers allow to estimate accurately a body inclination while being insensitive to its acceleration. Doing this, it is then possible to combine this information together with the one provided by an accelerometer to separate in a very accurate way the gravitational and kinematical components of acceleration. The proposed method is illustrated by the study of the sit-to-stand movement, estimating trunk inclination and absolute acceleration.
Bonnet
Stephane
S
CEA-LETI, 38000 Grenoble, France. stephane.bonnet@cea.fr
Héliot
Rodolphe
R
D000054:Acceleration; D001696:Biomechanical Phenomena / Q000295:instrumentation / Q000379:methods*; D003198:Computer Simulation; D006801:Humans; D008280:Magnetics; D008954:Models, Biological; D009068:Movement / Q000502:physiology*; D014159:Transducers