{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T08:13:48Z","timestamp":1791101628399,"version":"4.1.0"},"reference-count":37,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2011,6,22]],"date-time":"2011-06-22T00:00:00Z","timestamp":1308700800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Public Health Services","award":["UL1-RR025764"],"award-info":[{"award-number":["UL1-RR025764"]}]},{"DOI":"10.13039\/100000097","name":"National Center for Research Resources","doi-asserted-by":"crossref","award":["C06-RR11234"],"award-info":[{"award-number":["C06-RR11234"]}],"id":[{"id":"10.13039\/100000097","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Muscle and Nerve"],"published-print":{"date-parts":[[2011,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Introduction: The test\u2013retest reliability of the Modified Hammersmith Functional Motor Scale (MHFMS) in children with spinal muscular atrophy (SMA) \u226430 months of age was assessed. The age at which typically developing children (TD) achieve maximum MHFMS scores was also studied. Methods: Twenty\u2010two children with SMA type II [mean age (SD) = 20 (5) months, range 9\u201330 months) were tested twice using the MHFMS. Twenty\u2010five TD children [mean age (SD) = 18 (7) months, range 9\u201330 months) were tested once. Results: The average difference between MHFMS scores for SMA children was 0.18 [first assessment: mean (SD) = 12.8 (9.8); second assessment: mean (SD) = 13.0 (8.8)]. Reliability was excellent (ICC<jats:sub>1,3<\/jats:sub> = 0.96, SEM 1.86). TD participants had MHFMS scores ranging from 36 to 40 [mean (SD) = 39.2 (1.2)] and achieved maximum test scores at 12 months of age. Discussion: MHFMS scores in young children with SMA type II showed excellent test\u2013retest stability. This suggests that the MHFMS can be used reliably in this younger population for clinical trials and follow\u2010up. Muscle Nerve, 2011<\/jats:p>","DOI":"10.1002\/mus.22040","type":"journal-article","created":{"date-parts":[[2011,2,1]],"date-time":"2011-02-01T15:07:05Z","timestamp":1296572825000},"page":"246-251","source":"Crossref","is-referenced-by-count":36,"title":["Reliability of the modified hammersmith functional motor scale in young children with spinal muscular atrophy"],"prefix":"10.1002","volume":"44","author":[{"given":"Kristin J.","family":"Krosschell","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charles B.","family":"Scott","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jo Anne","family":"Maczulski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aga J.","family":"Lewelt","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandra P.","family":"Reyna","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathryn J.","family":"Swoboda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"name":"for Project Cure SMA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,6,22]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1098-1004(200003)15:3<228::AID-HUMU3>3.0.CO;2-9"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1006\/nbdi.1996.0010"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1177\/0883073807305665"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880131309"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1090-3798(03)00060-6"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2006.03.005"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2006.03.015"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2007.05.009"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.60.8.1130"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2008.07.003"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2005.11.010"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/ana.20473"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0005268"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2003.11.006"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2008.05.004"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0012140"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2005.07.005"},{"key":"e_1_2_6_19_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02282993"},{"key":"e_1_2_6_20_2","doi-asserted-by":"publisher","DOI":"10.1177\/088307380001500207"},{"key":"e_1_2_6_21_2","doi-asserted-by":"publisher","DOI":"10.1159\/000052118"},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.47.4.973"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-510X(96)00284-5"},{"key":"e_1_2_6_24_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.46.2.335"},{"key":"e_1_2_6_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2004.04.004"},{"key":"e_1_2_6_26_2","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/87.4.707"},{"key":"e_1_2_6_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2010.09.003"},{"key":"e_1_2_6_28_2","doi-asserted-by":"publisher","DOI":"10.1037\/0033-2909.86.2.420"},{"key":"e_1_2_6_29_2","doi-asserted-by":"publisher","DOI":"10.1097\/DBP.0b013e3181856d54"},{"key":"e_1_2_6_30_2","doi-asserted-by":"publisher","DOI":"10.1080\/J006v25n01_09"},{"key":"e_1_2_6_31_2","volume-title":"Motor assessment of the developing infant","author":"Piper M","year":"1994"},{"key":"e_1_2_6_32_2","volume-title":"Bayley Scales of Infant and Toddler Development (BSID\u2010III): Motor scale administration and technical manual","author":"Bayley N","year":"2005"},{"key":"e_1_2_6_33_2","volume-title":"Peabody developmental motor scales","author":"Folio M","year":"2000"},{"key":"e_1_2_6_34_2","doi-asserted-by":"publisher","DOI":"10.1097\/00001577-199500730-00004"},{"key":"e_1_2_6_35_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8749.2004.tb00985.x"},{"key":"e_1_2_6_36_2","doi-asserted-by":"publisher","DOI":"10.5014\/ajot.53.5.514"},{"key":"e_1_2_6_37_2","first-page":"136","article-title":"Racial\/ethnic variation in the motor development and performance of American children","volume":"13","author":"Malina RM","year":"1988","journal-title":"Can J Sport Sci"},{"key":"e_1_2_6_38_2","doi-asserted-by":"publisher","DOI":"10.1136\/adc.50.6.454"}],"container-title":["Muscle &amp; 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