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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Comparison of step length estimators from weareable accelerometer devices.
    Author: Alvarez D, Gonzalez RC, Lopez A, Alvarez JC.
    Journal: Conf Proc IEEE Eng Med Biol Soc; 2006; 2006():5964-7. PubMed ID: 17946351.
    Abstract:
    Wearable accelerometry provides easily portable systems that supply real-time data adequate for gait analysis. When they do not provide direct measurement of a spatio-temporal parameter of interest, such as step length, it has to be estimated with a mathematical model from indirect sensor measurements. In this work we are concerned with the accelerometry-based estimation of the step length in straight line human walking. We compare five step length estimators. Measurements were taken from a group of four adult men, adding up a total of 800 m per individual of walking data. Also modifications to these estimators are proposed, based on biomechanical considerations. Results show that this modifications lead to improvements of interest over previous methods.
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