Reliability of digitally instructed self-reported 30-second chair stand test for lower extremity function
Objective: The 30-s 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 asses...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Osteoarthritis and Cartilage Open |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2665913125000494 |
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| author | Leif E. Dahlberg Oscar Karlsson Paulina Sirard L Stefan Lohmander Ali Kiadaliri |
| author_facet | Leif E. Dahlberg Oscar Karlsson Paulina Sirard L Stefan Lohmander Ali Kiadaliri |
| author_sort | Leif E. Dahlberg |
| collection | DOAJ |
| description | Objective: The 30-s 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. |
| format | Article |
| id | doaj-art-1b803e1e66ae4e63b3ea2061b3d828ed |
| institution | Kabale University |
| issn | 2665-9131 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Osteoarthritis and Cartilage Open |
| spelling | doaj-art-1b803e1e66ae4e63b3ea2061b3d828ed2025-08-20T03:47:45ZengElsevierOsteoarthritis and Cartilage Open2665-91312025-06-017210061310.1016/j.ocarto.2025.100613Reliability of digitally instructed self-reported 30-second chair stand test for lower extremity functionLeif E. Dahlberg0Oscar Karlsson1Paulina Sirard2L Stefan Lohmander3Ali Kiadaliri4Department of Clinical Sciences Lund, Orthopaedics, Lund University, Lund, Sweden; Corresponding author. Skånes universitetssjukhus, Wigerthuset, Remissgatan 4, SE-221 85 Lund, Sweden.Arthro Therapeutics, Malmö, Sweden; Department of Medicine and Optometry, Linnaeus University, Kalmar, SwedenArthro Therapeutics, Malmö, SwedenDepartment of Clinical Sciences Lund, Orthopaedics, Lund University, Lund, SwedenDepartment of Clinical Sciences Lund, Orthopaedics, Lund University, Lund, SwedenObjective: The 30-s 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.http://www.sciencedirect.com/science/article/pii/S2665913125000494eHealthFunctional testPhysiotherapyOsteoarthritis30s CST |
| spellingShingle | Leif E. Dahlberg Oscar Karlsson Paulina Sirard L Stefan Lohmander Ali Kiadaliri Reliability of digitally instructed self-reported 30-second chair stand test for lower extremity function Osteoarthritis and Cartilage Open eHealth Functional test Physiotherapy Osteoarthritis 30s CST |
| title | Reliability of digitally instructed self-reported 30-second chair stand test for lower extremity function |
| title_full | Reliability of digitally instructed self-reported 30-second chair stand test for lower extremity function |
| title_fullStr | Reliability of digitally instructed self-reported 30-second chair stand test for lower extremity function |
| title_full_unstemmed | Reliability of digitally instructed self-reported 30-second chair stand test for lower extremity function |
| title_short | Reliability of digitally instructed self-reported 30-second chair stand test for lower extremity function |
| title_sort | reliability of digitally instructed self reported 30 second chair stand test for lower extremity function |
| topic | eHealth Functional test Physiotherapy Osteoarthritis 30s CST |
| url | http://www.sciencedirect.com/science/article/pii/S2665913125000494 |
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