Title :
Comparison of absorbed power to vertical acceleration when measuring whole-body vibration during wheelchair propulsion
Author :
DiGiovine, Carmen P. ; Cooper, Rory A. ; Boninger, Michael L.
Author_Institution :
Human Eng. Res. Lab., Pittsburgh Univ. Sch. of Med., PA, USA
Abstract :
The purpose of this study was to examine the use of the absorbed power (AP) in describing whole-body vibration for individuals with a spinal cord injury (SCI) during manual wheelchair propulsion. The amplitude of the AP and the vertical acceleration were calculated in the frequency domain. The AP is more proficient than the acceleration metric at accentuating the frequencies related to whole-body vibration. The acceleration metric may be underestimating the amplitude of the vibration seen by an individual with a SCI especially at frequencies related to the natural frequency of the human body
Keywords :
biomechanics; biomedical measurement; handicapped aids; vibration measurement; absorbed power; acceleration metric; frequencies accentuation; human body natural frequency; spinal cord injury; vertical acceleration; wheelchair propulsion; whole-body vibration measurement; Acceleration; Accelerometers; Frequency; Humans; Power measurement; Propulsion; Strips; Testing; Vibration measurement; Wheelchairs;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802688
