Test-retest reliability and limits of agreement of the Six-Spot Step Test in people with Parkinson's disease

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Test-retest reliability and limits of agreement of the Six-Spot Step Test in people with Parkinson's disease. / Brincks, John; Callesen, Jacob; Dalgas, Ulrik; Johnsen, Erik.

I: Clinical Rehabilitation, Bind 33, Nr. 2, 02.2019, s. 285-292.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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@article{c85ced3528ce420a9737a3448a5e0042,
title = "Test-retest reliability and limits of agreement of the Six-Spot Step Test in people with Parkinson's disease",
abstract = "OBJECTIVE:: The aim of this study was to evaluate the within-day and day-to-day agreement and reliability of the Six-Spot Step Test in mild to moderately disabled people with Parkinson's disease.DESIGN:: Cross-sectional cohort study.SETTING:: Outpatient clinics.SUBJECTS:: Forty-four people with Parkinson's disease.MAIN MEASURE:: The Six-Spot Step Test was completed twice on day 1. Two days later, the Six-Spot Step Test was completed again. The agreement was estimated by Bland-Altman statistics with 95% limits of agreement, and reliability was estimated by the intraclass correlation coefficient.RESULTS:: Subjects had a mean (SD) age of 67.8 (6.8) years, a median (range) Hoehn and Yahr score of 2.5 (1-4) and a mean (SD) Six-Spot Step Test score of 8.1 (1.8), 7.6 (1.7) and 7.6 (1.6) seconds on test occasions 1 to 3. An agreement for within-day and day-to-day of ±1.8 (±23.7%) and ±2.2 (±26.7%) seconds was found, respectively. The reliability was 0.81 and 0.76 within-day and day-to-day, respectively. A small learning effect was observed ( P < 0.05) between the first and second Six-Spot Step Test, but there was no learning between the second and third occasions.CONCLUSION:: The Six-Spot Step Test has an acceptable within-day and day-to-day agreement and reliability in mild to moderately disabled people with Parkinson's disease. A change of 2.2 seconds can be regarded as a true change. To minimize learning effects, test trials of the Six-Spot Step Test are recommended before use.",
author = "John Brincks and Jacob Callesen and Ulrik Dalgas and Erik Johnsen",
year = "2019",
month = feb,
doi = "10.1177/0269215518803144",
language = "English",
volume = "33",
pages = "285--292",
journal = "Clinical Rehabilitation",
issn = "0269-2155",
publisher = "SAGE Publications Ltd",
number = "2",

}

RIS

TY - JOUR

T1 - Test-retest reliability and limits of agreement of the Six-Spot Step Test in people with Parkinson's disease

AU - Brincks, John

AU - Callesen, Jacob

AU - Dalgas, Ulrik

AU - Johnsen, Erik

PY - 2019/2

Y1 - 2019/2

N2 - OBJECTIVE:: The aim of this study was to evaluate the within-day and day-to-day agreement and reliability of the Six-Spot Step Test in mild to moderately disabled people with Parkinson's disease.DESIGN:: Cross-sectional cohort study.SETTING:: Outpatient clinics.SUBJECTS:: Forty-four people with Parkinson's disease.MAIN MEASURE:: The Six-Spot Step Test was completed twice on day 1. Two days later, the Six-Spot Step Test was completed again. The agreement was estimated by Bland-Altman statistics with 95% limits of agreement, and reliability was estimated by the intraclass correlation coefficient.RESULTS:: Subjects had a mean (SD) age of 67.8 (6.8) years, a median (range) Hoehn and Yahr score of 2.5 (1-4) and a mean (SD) Six-Spot Step Test score of 8.1 (1.8), 7.6 (1.7) and 7.6 (1.6) seconds on test occasions 1 to 3. An agreement for within-day and day-to-day of ±1.8 (±23.7%) and ±2.2 (±26.7%) seconds was found, respectively. The reliability was 0.81 and 0.76 within-day and day-to-day, respectively. A small learning effect was observed ( P < 0.05) between the first and second Six-Spot Step Test, but there was no learning between the second and third occasions.CONCLUSION:: The Six-Spot Step Test has an acceptable within-day and day-to-day agreement and reliability in mild to moderately disabled people with Parkinson's disease. A change of 2.2 seconds can be regarded as a true change. To minimize learning effects, test trials of the Six-Spot Step Test are recommended before use.

AB - OBJECTIVE:: The aim of this study was to evaluate the within-day and day-to-day agreement and reliability of the Six-Spot Step Test in mild to moderately disabled people with Parkinson's disease.DESIGN:: Cross-sectional cohort study.SETTING:: Outpatient clinics.SUBJECTS:: Forty-four people with Parkinson's disease.MAIN MEASURE:: The Six-Spot Step Test was completed twice on day 1. Two days later, the Six-Spot Step Test was completed again. The agreement was estimated by Bland-Altman statistics with 95% limits of agreement, and reliability was estimated by the intraclass correlation coefficient.RESULTS:: Subjects had a mean (SD) age of 67.8 (6.8) years, a median (range) Hoehn and Yahr score of 2.5 (1-4) and a mean (SD) Six-Spot Step Test score of 8.1 (1.8), 7.6 (1.7) and 7.6 (1.6) seconds on test occasions 1 to 3. An agreement for within-day and day-to-day of ±1.8 (±23.7%) and ±2.2 (±26.7%) seconds was found, respectively. The reliability was 0.81 and 0.76 within-day and day-to-day, respectively. A small learning effect was observed ( P < 0.05) between the first and second Six-Spot Step Test, but there was no learning between the second and third occasions.CONCLUSION:: The Six-Spot Step Test has an acceptable within-day and day-to-day agreement and reliability in mild to moderately disabled people with Parkinson's disease. A change of 2.2 seconds can be regarded as a true change. To minimize learning effects, test trials of the Six-Spot Step Test are recommended before use.

U2 - 10.1177/0269215518803144

DO - 10.1177/0269215518803144

M3 - Journal article

C2 - 30789075

VL - 33

SP - 285

EP - 292

JO - Clinical Rehabilitation

JF - Clinical Rehabilitation

SN - 0269-2155

IS - 2

ER -