The Accuracy of Talking Pedometers When Used During Free-Living: A Comparison of Four DevicesBy Albright, Carolyn; Jerome, Gerald G.; Journal of Visual Impairment and Blindness, Volume 105, Number 5, pages 299-304
Publication Date: May 2011
Study investigated the accuracy of 4 commercially available talking pedometers in measuring accumulated daily steps of adult participants while they moved independently. The pedometers selected for validation were the Oregon Scientific PE829, Sportline 343, Brookstone Talking Pedometer, and Accusplit Alliance AL300. The devices all had a Talk button that, when pressed, read out the information provided on their screens including accumulated steps, distance traveled, and calories expended. The Digi-Walker SW-200, which has been used extensively in research as a criterion pedometer, was selected to provide an accurate measure of accumulated steps by which to compare the pedometers tested. Participants were 10 young sighted adults, 10 older sighted adults, and 10 adults with visual impairments. Participants wore 4 belts each with one of the 4 talking pedometers and a criterion pedometer attached during daily activities. Daily step counts were recorded for each pedometer at the end of the day. Statistical analysis of logged counts was performed and difference scores were calculated using the comparison criterion. A positive difference indicated overcounting, and a negative difference indicated undercounting of steps compared to the criterion. The Accusplit Alliance AL300 was the most accurate talking pedometer for measuring the daily accumulation of steps. Percentage errors were as follows: Accusplit, -7.99, Brookstone, 23.24, Scientific, -37.54, and Sportline, -24.25. No interaction effect was found between the pedometer model and the participant group. Study limitations and implications for future research are discussed.
Assistive Products Discussed: BROOKSTONE TALKING PEDOMETER
TALKING PEDOMETER WITH FM RADIO (MODEL PE829)
Published by: AFB Press (Website:http://www.afb.org/Section.asp?SectionID=46)
American Foundation for the Blind (AFB) (Web Site: http://www.afb.org )