Paper Info
Title
Quantification of bradykinesia during clinical finger taps using a gyrosensor in patients with Parkinson's disease.
Abstract
This study aims to develop a quantitative measure of bradykinesia which can be conveniently used during clinical finger taps test in patients with Parkinson's disease. A miniature, light-weight gyrosensor free from gravitational artifact was used for measurement of finger taps in order to impose minimal constraint on patients. Forty Parkinson's disease patients and 14 age-matched control subjects participated in the experiments. Subjects' finger taps in both right and left hands were scored by two independent neurologists according to the unified Parkinson's disease rating scale and were also measured by a gyrosensor. Four performance indices were derived from the gyrosensor signal of the index finger. All indices showed significant differences between control and patients (P < 0.001) and also significant correlations with the clinical finger taps score (r = -0.73 to -0.80, P < 0.001). ANOVA showed significant differences in all indices among different finger taps scores (P < 0.001), and post hoc tests showed significant differences in indices between most pairs of non-neighboring and part of neighboring pairs of finger taps scores (P < 0.01). The results suggest that indices from a gyrosensor can be used as quantitative measures of bradykinesia during the finger taps test.
Year
DOI
Venue
2011
10.1007/s11517-010-0697-8
Med. Biol. Engineering and Computing
Keywords
Field
DocType
parkinson's disease updrs bradykinesia finger taps gyrosensor quantification,indexation,performance indicator,rating scale
Computer vision,Index finger,Parkinson's disease,Physical therapy,Psychology,Rating scale,Post-hoc analysis,Artificial intelligence,Physical medicine and rehabilitation,Analysis of variance
Journal
Volume
Issue
ISSN
49
3
1741-0444
Citations 
PageRank 
References 
14
1.34
0
Authors
8
Name
Order
Citations
PageRank
Ji-Won Kim1141.34
Jae-Ho Lee220242.11
Yuri Kwon3141.34
Chul-Seung Kim4194.16
Gwang-Moon Eom5225.20
Seong-Beom Koh6141.34
Do-Young Kwon7141.34
Kunwoo Park813614.51