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The instrument used to assess players\u2019 tactical behaviour was the System of Tactical Assessment in Soccer (FUT-SAT). Tactical behaviour was analysed through the number of tactical actions and the percentage of correct actions regarding the core tactical principles of soccer. Repeated measures test was used to compare tactical behaviour between games (SSCGs) with and without an inside floater. Pearson\u2019s r was used to verify the effect size of the inside floater on tactical behaviour. As for tactical actions, SSCGs with an inside floater displayed significantly lower means for the tactical principles of penetration (2.76 \u00b1 1.63; p &lt; .001), delay (6.11 \u00b1 2.68; p &lt; .018), defensive coverage (1.64 \u00b1 1.14; p &lt; .001) and significantly higher means for the tactical principle of defensive unity (14.98 \u00b1 4.57; p &lt; .032). With respect to the percentage of correct actions, SSCGs with an inside floater displayed significantly lower means for all tactical principles, except for offensive coverage (90.5 \u00b1 18.48; p &lt; 1.000). It was concluded that the inside floater allowed players to modify their behaviour in such a way that they adapted to the constraints imposed by the presence of an inside floater. Furthermore, the inside floater provided more difficulty for players, and thus may be considered an important task constraint to be added in SSCGs.<\/jats:p>","DOI":"10.2478\/hukin-2019-0080","type":"journal-article","created":{"date-parts":[[2020,2,11]],"date-time":"2020-02-11T04:30:57Z","timestamp":1581395457000},"page":"167-177","source":"Crossref","is-referenced-by-count":15,"title":["Effect of an Inside Floater on Soccer Players Tactical Behaviour in Small Sided and Conditioned Games"],"prefix":"10.5114","volume":"71","author":[{"given":"Felipe","family":"Moniz","sequence":"first","affiliation":[{"name":"Department of Physical Education, Centre of Research and Studies in Soccer, Universidade Federal de Vi\u00e7osa , Vi\u00e7osa , Brazil"}]},{"given":"Alcides","family":"Scaglia","sequence":"additional","affiliation":[{"name":"School of Applied Sciences, Universidade Estadual de Campinas , Campinas , Brazil"}]},{"given":"Hugo","family":"Sarmento","sequence":"additional","affiliation":[{"name":"Faculty of Sport Science and Physical Education Portugal, University of Coimbra , Coimbra , Portugal"}]},{"given":"Tom\u00e1s","family":"Garc\u00eda-Calvo","sequence":"additional","affiliation":[{"name":"Faculty of Sport Science, University of Extremadura , C\u00e1ceres , Spain"}]},{"given":"Israel","family":"Teoldo","sequence":"additional","affiliation":[{"name":"Department of Physical Education, Centre of Research and Studies in Soccer, Universidade Federal de Vi\u00e7osa , Vi\u00e7osa , Brazil"}]}],"member":"3061","published-online":{"date-parts":[[2020,1,31]]},"reference":[{"key":"2023012005180119481_j_hukin-2019-0080_ref_001_w2aab3b8c77b1b7b1ab2b2b1Aa","doi-asserted-by":"crossref","unstructured":"Aguiar M, Botelho G, Lago C, Ma\u00e7as V, Sampaio J. 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