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Three male guide pairs participated, all with national and international experience: Pair 1: AVI (T12); Pair 2: AVI (T11); Pair 3: (T11). Assessments included: (a) anthropometry, (b) lower-limb muscle power via countermovement jump (CMJ), and (c) kinematic analysis during an official 100-meter race using a global positioning system (GPS). GAs generally exhibited greater height, body mass, and longer lower limbs compared to AVIs. Except for Pair 3, GAs demonstrated superior CMJ performance and lower-limb power output. Peak running velocity (PV) was comparable across pairs, but AVI in Pair 1 and 2 achieved PV faster than their GAs. Pair 3 displayed pronounced asymmetries in instantaneous velocity and acceleration between AVI and GA during the race. The synchronization is influenced by experience duration, anthropometric compatibility, and muscle power disparities.<\/jats:p>","DOI":"10.1177\/20556683261431332","type":"journal-article","created":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T04:09:36Z","timestamp":1775448576000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Anthropometric, muscle power and kinematic characteristics of visually impaired sprinters and their guides: Case studies"],"prefix":"10.1177","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0970-9318","authenticated-orcid":false,"given":"Leonardo Mendes","family":"Barbosa","sequence":"first","affiliation":[{"name":"Federal University of Amazonas - UFAM"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1518-9021","authenticated-orcid":false,"given":"Thiago Fernando","family":"Louren\u00e7o","sequence":"additional","affiliation":[{"name":"Brazilian Paralympic Committee \u2013 CPB"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4132-9860","authenticated-orcid":false,"given":"Mateus","family":"Rossato","sequence":"additional","affiliation":[{"name":"Federal University of Amazonas - UFAM"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1048-8164","authenticated-orcid":false,"given":"Jo\u00e3o Otac\u00edlio","family":"Libardoni dos Santos","sequence":"additional","affiliation":[{"name":"Federal University of Amazonas - UFAM"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2026,4,5]]},"reference":[{"key":"e_1_3_6_2_2","doi-asserted-by":"publisher","DOI":"10.3390\/healthcare10071289"},{"key":"e_1_3_6_3_2","doi-asserted-by":"publisher","DOI":"10.1123\/APAQ.2015-0006"},{"key":"e_1_3_6_4_2","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0b013e318220fd03"},{"key":"e_1_3_6_5_2","doi-asserted-by":"publisher","DOI":"10.3389\/fphys.2015.00323"},{"key":"e_1_3_6_6_2","doi-asserted-by":"crossref","first-page":"e2022_0010","DOI":"10.1590\/1517-8692202329022022_0010i","article-title":"The relationship between jumping and sprinting performance in teenage sprinters","volume":"29","author":"Liang T","year":"2023","unstructured":"Liang T, Zhang B, Cheng SC, et al. 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