Reliability of digitally instructed self-reported 30-second Chair Stand Test for lower extremity function
Dahlberg, Leif E. LU ; Karlsson, Oscar ; Sirard, Paulina ; Lohmander, L Stefan LU
and Kiadaliri, Ali
LU
(2025)
In Osteoarthritis and Cartilage Open
- Abstract
- Objective
The 30-second Chair Stand Test (30s CST), a valid and reliable test evaluating lower extremity physical function, has been integrated into a digital eHealth program. We aimed to evaluate the agreement (inter-rater reliability) between digital self-assessment and in-person physiotherapist assessment as well as intra-rater test-retest reliability of digital self-assessment among persons with hip or knee osteoarthritis.
Design
Eligible participants with hip or knee osteoarthritis were identified from the digital treatment database. The 30s CST was performed through a digital self-assessment and in-person physiotherapist assessment. The inter-rater reliability study was conducted at a physiotherapy clinic and for the... (More) - Objective
The 30-second Chair Stand Test (30s CST), a valid and reliable test evaluating lower extremity physical function, has been integrated into a digital eHealth program. We aimed to evaluate the agreement (inter-rater reliability) between digital self-assessment and in-person physiotherapist assessment as well as intra-rater test-retest reliability of digital self-assessment among persons with hip or knee osteoarthritis.
Design
Eligible participants with hip or knee osteoarthritis were identified from the digital treatment database. The 30s CST was performed through a digital self-assessment and in-person physiotherapist assessment. The inter-rater reliability study was conducted at a physiotherapy clinic and for the intra-rater test-retest reliability, the participants performed the digitally self-assessment test twice in their home.
Results
The inter-rater reliability one-day study, included 18 participants (mean age 67 years and 89% females) and one physiotherapist. The intra-rater test-retest, separated by 10-14 days, included 54 participants (mean age 69 years, 78% females). There were, on average, 1.5 (95% CI 0.6 to 2.4) more self-reported sit-to-stand repetitions for the digital self-assessment compared with in-person physiotherapist assessment. The digital self-assessment of 30s CST showed low to excellent inter-rater reliability with an intraclass correlation coefficient (ICC) of 0.87 (95% CI 0.47 to 0.96) and good to excellent intra-rater test-retest reliability, ICC 0.88 (95% CI 0.79 to 0.93). Bland-Altman plots suggested good levels of inter- and intra-rater reliability.
Conclusion
Results suggest that the 30s CST can be measured digitally as a self-administered and self-reported measurement of lower extremity physical function in older adults with hip and/or knee osteoarthritis. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7a7159c5-9e5b-4116-9384-e43433658378
- author
- Dahlberg, Leif E.
LU
; Karlsson, Oscar
; Sirard, Paulina
; Lohmander, L Stefan
LU
and Kiadaliri, Ali
LU
- organization
- publishing date
- 2025-04-01
- type
- Contribution to journal
- publication status
- epub
- subject
- in
- Osteoarthritis and Cartilage Open
- article number
- 100613
- publisher
- Elsevier
- external identifiers
-
- scopus:105003140338
- ISSN
- 2665-9131
- DOI
- 10.1016/j.ocarto.2025.100613
- language
- English
- LU publication?
- yes
- id
- 7a7159c5-9e5b-4116-9384-e43433658378
- date added to LUP
- 2025-04-14 10:46:02
- date last changed
- 2025-05-21 04:03:27
@article{7a7159c5-9e5b-4116-9384-e43433658378,
abstract = {{Objective<br/>The 30-second Chair Stand Test (30s CST), a valid and reliable test evaluating lower extremity physical function, has been integrated into a digital eHealth program. We aimed to evaluate the agreement (inter-rater reliability) between digital self-assessment and in-person physiotherapist assessment as well as intra-rater test-retest reliability of digital self-assessment among persons with hip or knee osteoarthritis.<br/>Design<br/>Eligible participants with hip or knee osteoarthritis were identified from the digital treatment database. The 30s CST was performed through a digital self-assessment and in-person physiotherapist assessment. The inter-rater reliability study was conducted at a physiotherapy clinic and for the intra-rater test-retest reliability, the participants performed the digitally self-assessment test twice in their home.<br/>Results<br/>The inter-rater reliability one-day study, included 18 participants (mean age 67 years and 89% females) and one physiotherapist. The intra-rater test-retest, separated by 10-14 days, included 54 participants (mean age 69 years, 78% females). There were, on average, 1.5 (95% CI 0.6 to 2.4) more self-reported sit-to-stand repetitions for the digital self-assessment compared with in-person physiotherapist assessment. The digital self-assessment of 30s CST showed low to excellent inter-rater reliability with an intraclass correlation coefficient (ICC) of 0.87 (95% CI 0.47 to 0.96) and good to excellent intra-rater test-retest reliability, ICC 0.88 (95% CI 0.79 to 0.93). Bland-Altman plots suggested good levels of inter- and intra-rater reliability.<br/>Conclusion<br/>Results suggest that the 30s CST can be measured digitally as a self-administered and self-reported measurement of lower extremity physical function in older adults with hip and/or knee osteoarthritis.}},
author = {{Dahlberg, Leif E. and Karlsson, Oscar and Sirard, Paulina and Lohmander, L Stefan and Kiadaliri, Ali}},
issn = {{2665-9131}},
language = {{eng}},
month = {{04}},
publisher = {{Elsevier}},
series = {{Osteoarthritis and Cartilage Open}},
title = {{Reliability of digitally instructed self-reported 30-second Chair Stand Test for lower extremity function}},
url = {{http://dx.doi.org/10.1016/j.ocarto.2025.100613}},
doi = {{10.1016/j.ocarto.2025.100613}},
year = {{2025}},
}