Development of the Italian version of the Motricity Index and evaluation of its reliability in adults with stroke
Background: The Motricity Index (MI) is a commonly used method of measuring muscle strength in post-stroke hemiparesis. This study aimed to produce the MI Italian version (MI-IT) and assess its reliability in subjects with stroke. Methods: Phase-1: stepwise approach to MI-IT production and pilot-te...
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Medical Journals Sweden
2025-01-01
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| Series: | Journal of Rehabilitation Medicine |
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| Online Access: | https://medicaljournalssweden.se/jrm/article/view/40441 |
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| author | Diego Longo Stefano Doronzio Michele Piazzini Angela Maria Politi Tommaso Ciapetti Filippo Gerli Monica Barnabé Francesca Ciullini Chiara Castagnoli Ilaria Pellegrini Marta Cannobio Donata Bardi Marco Baccini Francesca Cecchi |
| author_facet | Diego Longo Stefano Doronzio Michele Piazzini Angela Maria Politi Tommaso Ciapetti Filippo Gerli Monica Barnabé Francesca Ciullini Chiara Castagnoli Ilaria Pellegrini Marta Cannobio Donata Bardi Marco Baccini Francesca Cecchi |
| author_sort | Diego Longo |
| collection | DOAJ |
| description | Background: The Motricity Index (MI) is a commonly used method of measuring muscle strength in post-stroke hemiparesis. This study aimed to produce the MI Italian version (MI-IT) and assess its reliability in subjects with stroke.
Methods: Phase-1: stepwise approach to MI-IT production and pilot-testing with 10 health professionals to ensure clarity of each item and instructions for administration and scoring. Phase-2: evaluation of MI-IT reliability on stroke subjects, each independently assessed by 2 raters randomly selected from a group of 10 physiotherapists; the first rater re-administered the MI-IT 1–3 days later. Intraclass correlation coefficients, Spearman’s rho and, limited to the more affected side, non-parametric limits of agreement (LOA) were computed for total MI-IT scores, squared weighted kappa and percentage of observed agreement for individual item scores.
Results: The back-translated versions showed no discrepancies with original MI, but 3 items were revised after pilot-testing. Complete data on 50 (test–retest) and 51 (inter-rater) participants demonstrated excellent reliability of all MI-IT total scores on the more affected side (Spearman’s rho range: test–retest 0.953–0.975; inter-rater: 0.965–0.970), with LOA ranging from 9–25%), but poor inter-rater reliability for some scores on the less affected side (Spearman’s rho range: test–retest, 0.816–0.976; inter-rater: 0.508–0.721). Moderate to almost perfect agreement was found for all individual item scores, except for 2 items on the less affected side.
Conclusions: The MI-IT is sufficiently reliable to evaluate motor impairment of the more affected side after stroke, with acceptable measurement error for all scores.
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| format | Article |
| id | doaj-art-e1d945cee4b94ff8aa6df3808e349a21 |
| institution | DOAJ |
| issn | 1651-2081 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Medical Journals Sweden |
| record_format | Article |
| series | Journal of Rehabilitation Medicine |
| spelling | doaj-art-e1d945cee4b94ff8aa6df3808e349a212025-08-20T02:44:13ZengMedical Journals SwedenJournal of Rehabilitation Medicine1651-20812025-01-015710.2340/jrm.v57.40441Development of the Italian version of the Motricity Index and evaluation of its reliability in adults with strokeDiego Longo0https://orcid.org/0000-0003-1776-6873Stefano Doronzio1Michele Piazzini2https://orcid.org/0009-0001-9146-0285Angela Maria Politi3Tommaso Ciapetti4Filippo Gerli5Monica Barnabé6Francesca Ciullini7Chiara Castagnoli8Ilaria Pellegrini9Marta Cannobio10Donata Bardi11Marco Baccini12https://orcid.org/0000-0002-8456-9709Francesca Cecchi13https://orcid.org/0000-0002-7410-0325University of Florence, Department of Experimental and Clinical Medicine, Firenze, ItalyUniversity of Florence, Department of Experimental and Clinical Medicine, Firenze, Italy; IRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyUniversity of Florence, Department of Experimental and Clinical Medicine, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyIRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyUniversity of Florence, Department of Experimental and Clinical Medicine, Firenze, Italy; IRCCS Fondazione Don Carlo Gnocchi, Firenze, ItalyBackground: The Motricity Index (MI) is a commonly used method of measuring muscle strength in post-stroke hemiparesis. This study aimed to produce the MI Italian version (MI-IT) and assess its reliability in subjects with stroke. Methods: Phase-1: stepwise approach to MI-IT production and pilot-testing with 10 health professionals to ensure clarity of each item and instructions for administration and scoring. Phase-2: evaluation of MI-IT reliability on stroke subjects, each independently assessed by 2 raters randomly selected from a group of 10 physiotherapists; the first rater re-administered the MI-IT 1–3 days later. Intraclass correlation coefficients, Spearman’s rho and, limited to the more affected side, non-parametric limits of agreement (LOA) were computed for total MI-IT scores, squared weighted kappa and percentage of observed agreement for individual item scores. Results: The back-translated versions showed no discrepancies with original MI, but 3 items were revised after pilot-testing. Complete data on 50 (test–retest) and 51 (inter-rater) participants demonstrated excellent reliability of all MI-IT total scores on the more affected side (Spearman’s rho range: test–retest 0.953–0.975; inter-rater: 0.965–0.970), with LOA ranging from 9–25%), but poor inter-rater reliability for some scores on the less affected side (Spearman’s rho range: test–retest, 0.816–0.976; inter-rater: 0.508–0.721). Moderate to almost perfect agreement was found for all individual item scores, except for 2 items on the less affected side. Conclusions: The MI-IT is sufficiently reliable to evaluate motor impairment of the more affected side after stroke, with acceptable measurement error for all scores. https://medicaljournalssweden.se/jrm/article/view/40441StrokeNeurological RehabilitationTranslatingReproducibility of Results |
| spellingShingle | Diego Longo Stefano Doronzio Michele Piazzini Angela Maria Politi Tommaso Ciapetti Filippo Gerli Monica Barnabé Francesca Ciullini Chiara Castagnoli Ilaria Pellegrini Marta Cannobio Donata Bardi Marco Baccini Francesca Cecchi Development of the Italian version of the Motricity Index and evaluation of its reliability in adults with stroke Journal of Rehabilitation Medicine Stroke Neurological Rehabilitation Translating Reproducibility of Results |
| title | Development of the Italian version of the Motricity Index and evaluation of its reliability in adults with stroke |
| title_full | Development of the Italian version of the Motricity Index and evaluation of its reliability in adults with stroke |
| title_fullStr | Development of the Italian version of the Motricity Index and evaluation of its reliability in adults with stroke |
| title_full_unstemmed | Development of the Italian version of the Motricity Index and evaluation of its reliability in adults with stroke |
| title_short | Development of the Italian version of the Motricity Index and evaluation of its reliability in adults with stroke |
| title_sort | development of the italian version of the motricity index and evaluation of its reliability in adults with stroke |
| topic | Stroke Neurological Rehabilitation Translating Reproducibility of Results |
| url | https://medicaljournalssweden.se/jrm/article/view/40441 |
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