{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T06:25:20Z","timestamp":1790144720412,"version":"4.0.1"},"reference-count":33,"publisher":"Oxford University Press (OUP)","issue":"11","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2013,11,1]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>The Dynamic Gait Index (DGI) measures the capacity to adapt gait to complex tasks. The current scoring system combining gait pattern (GP) and level of assistance (LOA) lacks clarity, and the test has a limited range of measurement.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>This study developed a new scoring system based on 3 facets of performance (LOA, GP, and time) and examined the psychometric properties of the modified DGI (mDGI).<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>A cross-sectional, descriptive study was conducted.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Nine hundred ninety-five participants (855 patients with neurologic pathology and mobility impairments [MI group] and 140 patients without neurological impairment [control group]) were tested. Interrater reliability was calculated using kappa coefficients. Internal consistency was computed using the Cronbach alpha coefficient. Factor analysis and Rasch analysis investigated unidimensionality and range of difficulty. Internal validity was determined by comparing groups using multiple t tests. Minimal detectable change (MDC) was calculated for total score and 3 facet scores using the reliability estimate for the alpha coefficients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Interrater agreement was strong, with kappa coefficients ranging from 90% to 98% for time scores, 59% to 88% for GP scores, and 84% to 100% for LOA scores. Test-retest correlations (r) for time, GP, and LOA were .91, .91, and .87, respectively. Three factors (time, LOA, GP) had eigenvalues greater than 1.3 and explained 79% of the variance in scores. All group differences were significant, with moderate to large effect sizes. The 95% minimal detectable change (MDC95) was 4 for the mDGI total score, 2 for the time and GP total scores, and 1 for the LOA total score.<\/jats:p><\/jats:sec><jats:sec><jats:title>Limitations<\/jats:title><jats:p>The limitations included uneven sample sizes in the 2 groups. The MI group were patients receiving physical therapy; therefore, they may not be representative of this population.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The mDGI, with its expanded scoring system, improves the range, discrimination, and facets of measurement related to walking function. The strength of the psychometric properties of the mDGI warrants its adoption for both clinical and research purposes.<\/jats:p><\/jats:sec>","DOI":"10.2522\/ptj.20130035","type":"journal-article","created":{"date-parts":[[2013,6,29]],"date-time":"2013-06-29T03:37:23Z","timestamp":1372477043000},"page":"1493-1506","source":"Crossref","is-referenced-by-count":71,"title":["Expanding the Scoring System for the Dynamic Gait Index"],"prefix":"10.1093","volume":"93","author":[{"given":"Anne","family":"Shumway-Cook","sequence":"first","affiliation":[{"name":"A. Shumway-Cook, PT, PhD, FAPTA, Department of Rehabilitation Medicine, Division of Physical Therapy, University of Washington, 1959 NE Pacific St, Box 356490, Seattle, WA 98195 (USA)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Catherine S.","family":"Taylor","sequence":"additional","affiliation":[{"name":"C.S. Taylor, PhD, College of Education, University of Washington."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patricia Noritake","family":"Matsuda","sequence":"additional","affiliation":[{"name":"P.N. Matsuda, PT, DPT, PhD, Department of Rehabilitation Medicine, Division of Physical Therapy, University of Washington."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael T.","family":"Studer","sequence":"additional","affiliation":[{"name":"M.T. Studer, PT, MHS, NCS, Northwest Rehabilitation Associates, Salem, Oregon."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brady K.","family":"Whetten","sequence":"additional","affiliation":[{"name":"B.K. 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Ther"},{"key":"2019123012285904000_B7","doi-asserted-by":"crossref","first-page":"388","DOI":"10.2522\/ptj.20100398","article-title":"Sensitivity to change and responsiveness of four balance measures for community dwelling older adults","volume":"92","author":"Pardasaney","year":"2012","journal-title":"Phys Ther"},{"key":"2019123012285904000_B8","doi-asserted-by":"crossref","first-page":"1410","DOI":"10.1016\/j.apmr.2007.08.109","article-title":"Reliability and validity of the Dynamic Gait Index in persons with chronic stroke","volume":"88","author":"Jonsdottir","year":"2007","journal-title":"Arch Phys Med Rehabil"},{"key":"2019123012285904000_B9","doi-asserted-by":"crossref","first-page":"2021","DOI":"10.1161\/STROKEAHA.110.589739","article-title":"Psychometric comparisons of three functional ambulation measures for patients with 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Ther"},{"key":"2019123012285904000_B16","doi-asserted-by":"crossref","first-page":"812","DOI":"10.1093\/ptj\/77.8.812","article-title":"Predicting the probability for falls in community dwelling older adults","volume":"77","author":"Shumway-Cook","year":"1997","journal-title":"Phys Ther"},{"key":"2019123012285904000_B17","doi-asserted-by":"crossref","first-page":"60","DOI":"10.1097\/01.NPT.0000282569.70920.dc","article-title":"Predicting falls in individuals with Parkinson disease: a reconsideration of clinical balance measures","volume":"30","author":"Dibble","year":"2006","journal-title":"J Neurol Phys Ther"},{"key":"2019123012285904000_B18","doi-asserted-by":"crossref","first-page":"413","DOI":"10.1093\/ptj\/85.5.413","article-title":"Control of lead and trail limbs during obstacle crossing following stroke","volume":"85","author":"Said","year":"2005","journal-title":"Phys Ther"},{"key":"2019123012285904000_B19","doi-asserted-by":"crossref","first-page":"982","DOI":"10.1161\/01.STR.26.6.982","article-title":"Classification of walking handicap in the stroke population","volume":"26","author":"Perry","year":"1995","journal-title":"Stroke"},{"key":"2019123012285904000_B20","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1093\/ageing\/26.1.15","article-title":"Comfortable and walking speed of adults aged 20\u201379 years: reference values and determinants","volume":"26","author":"Bohannon","year":"1997","journal-title":"Age Aging"},{"key":"2019123012285904000_B21","doi-asserted-by":"crossref","first-page":"743","DOI":"10.1111\/j.1532-5415.2006.00701.x","article-title":"Meaningful change and responsiveness in common physical performance measures in older adults","volume":"54","author":"Perera","year":"2006","journal-title":"J Am Geriatr Soc"},{"key":"2019123012285904000_B22","doi-asserted-by":"crossref","first-page":"2096","DOI":"10.1161\/STROKEAHA.106.475921","article-title":"Improvements in speed-based gait classifications are meaningful","volume":"38","author":"Schmid","year":"2007","journal-title":"Stroke"},{"key":"2019123012285904000_B23","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1001\/jama.2010.1923","article-title":"Gait speed and survival in older adults","volume":"305","author":"Studenski","year":"2011","journal-title":"JAMA"},{"key":"2019123012285904000_B24","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1177\/001316446002000104","article-title":"A coefficient of agreement for nominal scales","volume":"20","author":"Cohen","year":"1960","journal-title":"Educational and Psychological Measurement"},{"key":"2019123012285904000_B25","first-page":"370","article-title":"Reasonable mean-square fit values","volume":"8","author":"Wright","year":"1994","journal-title":"Rasch Measurement Transactions"},{"key":"2019123012285904000_B26","unstructured":"Linacre JM . Winsteps help for Rasch analysis: misfit diagnosis. Winsteps Manual. 2005. Available at: http:\/\/www.winsteps.com\/winman\/index.htm?diagnosingmisfit.htm. Accessed January 3, 2013."},{"key":"2019123012285904000_B27","doi-asserted-by":"crossref","first-page":"149","DOI":"10.1007\/BF02296272","article-title":"A Rasch model for partial credit scoring","volume":"47","author":"Masters","year":"1982","journal-title":"Psychometrika"},{"key":"2019123012285904000_B28","doi-asserted-by":"crossref","first-page":"561","DOI":"10.1007\/BF02293814","article-title":"A rating formulation for ordered response categories","volume":"43","author":"Andrich","year":"1978","journal-title":"Psychometrika"},{"key":"2019123012285904000_B29","volume-title":"Rating Scale Analysis","author":"Wright","year":"1982"},{"key":"2019123012285904000_B30","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1016\/j.clinph.2005.08.014","article-title":"Gait recovery is not associated with changes in the temporal patterning of muscle activity during treadmill walking in patients with post-stroke hemiparesis","volume":"117","author":"Den Otter","year":"2006","journal-title":"Clin Neurophysiol"},{"key":"2019123012285904000_B31","doi-asserted-by":"crossref","first-page":"676","DOI":"10.1177\/1545968308317972","article-title":"Recovery of gait after stroke: what changes?","volume":"22","author":"Burke","year":"2008","journal-title":"Neurorehabil Neural Repair"},{"key":"2019123012285904000_B32","doi-asserted-by":"crossref","first-page":"620","DOI":"10.2522\/ptj.20110217","article-title":"Participation in community walking following stroke: the influence of self-perceived environmental barriers","volume":"93","author":"Robinson","year":"2013","journal-title":"Phys Ther"},{"key":"2019123012285904000_B33","doi-asserted-by":"crossref","first-page":"393","DOI":"10.1046\/j.1532-5415.2003.51114.x","article-title":"Environmental components of mobility disability in community-living older persons","volume":"51","author":"Shumway-Cook","year":"2003","journal-title":"J Am Ger Soc"}],"container-title":["Physical Therapy"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/academic.oup.com\/ptj\/article-pdf\/93\/11\/1493\/31659464\/ptj1493.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/academic.oup.com\/ptj\/article-pdf\/93\/11\/1493\/31659464\/ptj1493.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,7,29]],"date-time":"2020-07-29T09:58:24Z","timestamp":1596016704000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/ptj\/article\/93\/11\/1493\/2735325"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,11,1]]},"references-count":33,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2013,11,1]]}},"URL":"https:\/\/doi.org\/10.2522\/ptj.20130035","relation":{},"ISSN":["0031-9023","1538-6724"],"issn-type":[{"value":"0031-9023","type":"print"},{"value":"1538-6724","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,11,1]]}}}