du.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Analysis of tapping test results in a test battery for advanced PD patients
Dalarna University, School of Technology and Business Studies, Computer Engineering.ORCID iD: 0000-0003-0403-338X
Dalarna University, School of Technology and Business Studies, Computer Engineering.
2008 (English)In: Movement Disorders, 2008; :, Chicago, IL, USA, 2008, Vol. 23, 84-85 p.Conference paper, (Refereed)
Abstract [en]

Objective: To compare results from various tapping tests with diary responses in advanced PD. Background: A home environment test battery for assessing patient state in advanced PD, consisting of diary assessments and motor tests was constructed for a hand computer with touch screen and mobile communication. The diary questions: 1. walking, 2. time in off , on and dyskinetic states, 3. off at worst, 4. dyskinetic at worst, 5. cramps, and 6. satisfied with function, relate to the recent past. Question 7, self-assessment, allows seven steps from -3 ( very off ) to +3 ( very dyskinetic ) and relate to right now. Tapping tests outline: 8. Alternately tapping two fields (un-cued) with right hand 9. Same as 8 but using left hand 10. Tapping an active field (out of two) following a system-generated rhythm (increasing speed) with the dominant hand 11. Tapping an active field (out of four) that randomly changes location when tapped using the dominant hand Methods: 65 patients (currently on Duodopa, or candidates for this treatment) entered diary responses and performed tapping tests four times per day during one to six periods of seven days length. In total there were 224 test periods and 6039 test occasions. Speed for tapping test 10 was discardedand tests 8 and 9 were combined by taking means. Descriptive statistics were used to present the variation of the test variables in relation to self assessment (question 7). Pearson correlation coefficients between speed and accuracy (percent correct) in tapping tests and diary responses were calculated. Results: Mean compliance (percentage completed test occasions per test period) was 83% and the median was 93%. There were large differences in both mean tapping speed and accuracy between the different self-assessed states. Correlations between diary responses and tapping results were small (-0.2 to 0.3, negative values for off-time and dyskinetic-time that had opposite scale directions). Correlations between tapping results were all positive (0.1 to 0.6). Conclusions: The diary responses and tapping results provided different information. The low correlations can partly be explained by the fact that questions related to the past and by random variability, which could be reduced by taking means over test periods. Both tapping speed and accuracy reflect the motor function of the patient to a large extent.

Place, publisher, year, edition, pages
Chicago, IL, USA, 2008. Vol. 23, 84-85 p.
Keyword [en]
Parkinsonism; Bradykinesia; Dyskinesias
Identifiers
URN: urn:nbn:se:du-3440OAI: oai:dalea.du.se:3440DiVA: diva2:521870
Conference
The Movement Disorder Society’s 12th International Congress of Parkinson’s Disease and Movement Disorders, Chicago, IL, USA, June 22-26, 2008, 2008
Available from: 2008-10-09 Created: 2008-10-09 Last updated: 2015-06-01Bibliographically approved

Open Access in DiVA

fulltext(3402 kB)779 downloads
File information
File name FULLTEXT01.pdfFile size 3402 kBChecksum SHA-512
262b1329eee97ef0e656f1895d8e9c178cdee0bd39c0ddf8412fdc0e79b52fa70bdee5d5a7177724237665898b68b45b92488c53dea09d5232c0a668ffa3717a
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Westin, JerkerDougherty, Mark
By organisation
Computer Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 779 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 1179 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf