{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T21:28:17Z","timestamp":1773437297977,"version":"3.50.1"},"reference-count":42,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:p>Rago, V, Brito, J, Figueiredo, P, Ermidis, G, Barreira, D, and Rebelo, A. The arrowhead agility test: Reliability, minimum detectable change, and practical applications in soccer players. <jats:italic toggle=\"yes\">J Strength Cond Res<\/jats:italic> 34(2): 483\u2013494, 2020\u2014Four independent studies were conducted to examine the utility of the arrowhead agility test (AAT) to measure change of direction (COD) capacity in soccer players, specifically, (a) intersession reliability and minimum detectable change (<jats:italic toggle=\"yes\">n<\/jats:italic> = 24); (b) power-dependent abilities associated with AAT performance (<jats:italic toggle=\"yes\">n<\/jats:italic> = 56); and (c) fatigue sensitivity (<jats:italic toggle=\"yes\">n<\/jats:italic> = 20); differences between competitive levels and age groups (<jats:italic toggle=\"yes\">n<\/jats:italic> = 264). Irrespective of the AAT outcome measure (skillful side, less-skillful side, sum of both), intersession reliability and the ability to detect changes in performance were good (ICC = 0.80\u20130.83; CV = 1.25\u20132.21%; smallest worthwhile change, 0.06\u20130.12 &gt;<jats:italic toggle=\"yes\">SEM<\/jats:italic>, 0.01\u20130.03) except for the asymmetry index. A 15-m sprint explained a significant amount of variance in COD (<jats:italic toggle=\"yes\">p<\/jats:italic> &lt; 0.01; <jats:italic toggle=\"yes\">R<\/jats:italic>\n                           <jats:sup>2<\/jats:sup> = 0.42). Arrowhead agility test performance did not change from the prematch toward half time (<jats:italic toggle=\"yes\">p<\/jats:italic> = 0.21). However, reduced COD performance was observed after an intense period in the second half and after the game, compared with prematch and half-time performance (<jats:italic toggle=\"yes\">p<\/jats:italic> &lt; 0.05; effect size [ES] = \u22120.85 to 0.42). Irrespective of age group, national players were more agile than regional players (<jats:italic toggle=\"yes\">p<\/jats:italic> &lt; 0.05; ES = \u22121.97 to \u22120.36). Moreover, independently of their competitive level, senior and U18 players had a better performance than U16 (<jats:italic toggle=\"yes\">p<\/jats:italic> &lt; 0.05; ES = \u22122.33 to \u22120.84), whereas no significant differences were observed between senior and U18. Percentiles were also reported in the results. The AAT is reliable to measure COD in soccer players. The test may simultaneously encompass 15-m sprint testing but should be implemented independently to countermovement jump. Furthermore, the test is sensitive to match-induced fatigue during the second half and discriminates players from different competitive levels.<\/jats:p>","DOI":"10.1519\/jsc.0000000000002987","type":"journal-article","created":{"date-parts":[[2019,1,26]],"date-time":"2019-01-26T14:00:05Z","timestamp":1548511205000},"page":"483-494","source":"Crossref","is-referenced-by-count":34,"title":["The Arrowhead Agility Test: Reliability, Minimum Detectable Change, and Practical Applications in Soccer Players"],"prefix":"10.1519","volume":"34","author":[{"given":"Vincenzo","family":"Rago","sequence":"first","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sports, Faculty of Sports, University of Porto, Porto, Portugal;"},{"name":"Portugal Football School, Portuguese Football Federation, Lisbon, Portugal;"}]},{"given":"Jo\u00e3o","family":"Brito","sequence":"additional","affiliation":[{"name":"Portugal Football School, Portuguese Football Federation, Lisbon, Portugal;"}]},{"given":"Pedro","family":"Figueiredo","sequence":"additional","affiliation":[{"name":"Portugal Football School, Portuguese Football Federation, Lisbon, Portugal;"},{"name":"Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University Institute of Maia, ISMAI, Maia, Portugal;"}]},{"given":"Georgios","family":"Ermidis","sequence":"additional","affiliation":[{"name":"Department of Movement and Wellness Sciences, University Parthenope, Naples, Italy; and"},{"name":"Department of Sports Science and Clinical Biomechanics, Faculty of Health Sciences, SDU Sport and Health Sciences Cluster (SHSC), University of Southern Denmark, Odense, Denmark"}]},{"given":"Daniel","family":"Barreira","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sports, Faculty of Sports, University of Porto, Porto, Portugal;"}]},{"given":"Ant\u00f3nio","family":"Rebelo","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sports, Faculty of Sports, University of Porto, Porto, Portugal;"}]}],"member":"276","reference":[{"key":"R1-20230819","doi-asserted-by":"crossref","first-page":"556","DOI":"10.1016\/j.jsams.2012.12.005","article-title":"Diminutions of acceleration and deceleration output during professional football match play","volume":"16","author":"Akenhead","year":"2013","journal-title":"J Sci Med Sport"},{"key":"R2-20230819","doi-asserted-by":"crossref","first-page":"665","DOI":"10.1080\/02640410500482529","article-title":"Physical and metabolic demands of training and match-play in the elite football player","volume":"24","author":"Bangsbo","year":"2006","journal-title":"J Sports Sci"},{"key":"R3-20230819","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1016\/S0140-6736(86)90837-8","article-title":"Statistical methods for 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