@article{ref1,
title="A study on the reliability of measuring dynamic balance ability using a smartphone",
journal="Journal of physical therapy science",
year="2016",
author="Han, Seulki and Lee, Daehee and Lee, Sangyong",
volume="28",
number="9",
pages="2515-2518",
abstract="[Purpose] Evaluation of the reliability of smartphones as measuring equipment for dynamic balance ability was the goal of this study. [Subjects and Methods] Subjects were 30 healthy young students in their 20s. The first and second rounds of measurements were taken at a one-day interval to confirm test-retest reliability. The subjects stood on the footboard of the Biodex Balance System. Balance was measured using a smart phone. [Results] Acceleration rates corresponding to subjects with open eyes were 2.7 ± 2.2 (first measurement) and 3.3 ± 1.5 (second measurement), and the interclass correlation coefficient ICC (1,1) was 0.8. Acceleration rates corresponding to subjects with closed eyes were 4.1 ± 2.4 (first measurement) and 4.5 ± 1.8 (second measurement), and the ICC (1,1) was 0.9. Gyroscope rates corresponding to subjects with open eyes were 1.7 ± 1.2 (first measurement) and 2.3 ± 1.5 (second measurement), and the ICC (1,1) was 0.7. Gyroscope rates corresponding to subjects with closed eyes were 6.7 ± 2.4 (first measurement) and 6.6 ± 2.3 (second measurement), and the ICC (1,1) was 0.6. [Conclusion] The results of this study suggest that smartphones have sufficient potential as measuring equipment for dynamic balance ability.<p /> <p>Language: en</p>",
language="en",
issn="0915-5287",
doi="10.1589/jpts.28.2515",
url="http://dx.doi.org/10.1589/jpts.28.2515"
}