View Full Version : hopping test

07-24-2009, 01:30 AM
I have some problems with the hopping test measured on a Force Platform. In order to calculate the Centre of Mass displacement I double integrate the acceleration. However, both the velocity and the displacement signals start gaining a bit of error from the beginning and it grows bigger and bigger. The final displacement signal is completely drifted.

Do you have any suggestion?
Thanks a lot.
Massimiliano Ditroilo, PhD student
School of Physiotherapy and Performance Science
Health Science Centre
Room A312
University College Dublin (UCD)
Belfield, Dublin 4, Ireland
T +353 (0) 85 1723144
F + 353 1 716 6501
Email: Massimiliano.Ditroilo@ucdconnect.ie