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  1. #1
    Join Date
    Aug 2012
    Bellingham, WA

    Calculating Velocity from Accelerometer Data

    I am trying to use a triaxial accelerometer to calculate vertical velocities during a resistance training exercise done both in a slow, controlled manner, and then in the same movement done quickly. When I integrate the acceleration data using the equation vf = at + vi, the velocities come out strangely. I have attached an Excel file with the data and a graph showing the accelerations collected and the velocities calculated based on these data. These velocities don't make sense, so can anyone offer some guidance as to how I need to treat the data in order to properly calculate velocities?

    Any advice would be much appreciated.
    Attached Files Attached Files
    Last edited by dsuprak; 10-28-2014 at 11:33 AM.
    David N. Suprak, PhD, ATC, CSCS
    Associate Professor of Kinesiology
    Western Washington University
    Bellingham, WA, USA

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