Title :
Quantification of body tremor
Author :
McAllister, H.G. ; McCullagh, P.J. ; Kelly, J.
Author_Institution :
Dept. of Comput, Sci., Ulster Univ., Jordanstown, UK
Abstract :
A low-cost spectral analysis system for the measurement and analysis of body tremor is described. The system has been implemented using an accelerometer, amplifier and microcomputer complete with a special-purpose data acquisition interface and appropriate software. Data are acquired in eight 8-s epochs at a sampling rate of 128 Hz for resting, modified postural, and postural arm positions and stored for offline analysis. The time information is transformed to the frequency domain using the fast Fourier transform, and the average power spectrum in bands 1-32 Hz is computed for the 64-s recording period. Hardware and software aspects of the system are discussed and the results are briefly summarized
Keywords :
biomechanics; biomedical equipment; biomedical measurement; computerised instrumentation; medical computing; microcomputer applications; spectral analysis; 1 to 32 Hz; 128 Hz; 64 s; 8 s; accelerometer; amplifier; average power spectrum; body tremor quantification; fast Fourier transform; microcomputer system; offline analysis; postural arm positions; special-purpose data acquisition interface; Accelerometers; Circuits; Data acquisition; Displays; Frequency; Geriatrics; Hardware; Microcomputers; Piezoelectric transducers; Sampling methods;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96557
