Minimal detectable change of the timed 'up & go' test and the dynamic gait index in people with parkinson disease.
Background. The minimal detectable change (MDC) is the smallest amount of difference in individual scores that represents true change (beyond random measurement error). The MDCs of the Timed "Up & Go" Test (TUG) and the Dynamic Gait Index (DGI) in people with Parkinson disease (PD) are largely unkno...
| Publicado en: | Physical Therapy Vol. 91; no. 1; pp. 114 - 122 |
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| Autores principales: | , , , , , |
| Formato: | equations & formulas research tables/charts Journal Article |
| Publicado: |
Oxford University Press / USA
Jan2011
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104991124&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104991124 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00319023 PTH jtl: Physical Therapy issn: 00319023 maglogo: N pubinfo: dt: Jan2011 vid: 91 iid: 1 pid: 10398 pub: Oxford University Press / USA artinfo: ui: 104991124 104991124 2010913939 10.2522/ptj.20090126 NLM20947672 104991124 ppf: 114 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Minimal detectable change of the timed 'up & go' test and the dynamic gait index in people with parkinson disease. aug: au: Huang S Hsieh C Wu R Tai C Lin C Lu W affil: Lecturer, School of Occupational Therapy, College of Medicine, National Taiwan UniversitySenior Occupational Therapist, Division of Occupational Therapy, Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan sug: subj: Parkinson Disease Physiopathology Clinical Assessment Tools Evaluation Measurement Issues and Assessments Human Prospective Studies Test-Retest Reliability Convenience Sample Clinical Assessment Tools Scales Middle Age Aged Female Male Data Analysis Software Intraclass Correlation Coefficient Repeated Measures Two-Way Analysis of Variance Confidence Intervals Pearson's Correlation Coefficient Funding Source Middle Aged: 45-64 years Aged: 65+ years Female Male ab: Background. The minimal detectable change (MDC) is the smallest amount of difference in individual scores that represents true change (beyond random measurement error). The MDCs of the Timed "Up & Go" Test (TUG) and the Dynamic Gait Index (DGI) in people with Parkinson disease (PD) are largely unknown, limiting the interpretability of the change scores of both measures. Objective. The purpose of this study was to estimate the MDCs of the TUG and the DGI in people with PD. Design. This investigation was a prospective cohort study. Methods. Seventy-two participants were recruited from special clinics for movement disorders at a university hospital. Their mean age was 67.5 years, and 61% were men. All participants completed the TUG and the DGI assessments twice, about 14 days apart. The MDC was calculated from the standard error of measurement. The percentage MDC (MDC%) was calculated as the MDC divided by the mean of all scores for the sample. Furthermore, the intraclass correlation coefficient was used to examine the reproducibility between testing sessions (test-retest reliability). Results. The respective MDC and MDC% of the TUG were 3.5 seconds and 29.8, and those of the DGI were 2.9 points and 13.3. The test-retest reliability values for the TUG and the DGI were high; the intraclass correlation coefficients were .80 and .84, respectively. Limitations. The study sample was a convenience sample, and the participants had mild to moderately severe PD. Conclusions. The results showed that the TUG and the DGI have generally acceptable random measurement error and test-retest reliability. These findings should help clinicians and researchers determine whether a change in an individual patient with PD is a true change. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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