{"id":"https://openalex.org/W7225825538","doi":"https://doi.org/10.1186/s13102-026-02231-5","title":"A mathematical model based on discriminant function analysis for screening youth male football players with physical fitness profiles resembling professional standards","display_name":"A mathematical model based on discriminant function analysis for screening youth male football players with physical fitness profiles resembling professional standards","publication_year":2026,"publication_date":"2026-11-11","ids":{"openalex":"https://openalex.org/W7225825538","doi":"https://doi.org/10.1186/s13102-026-02231-5"},"language":"en","primary_location":{"id":"doi:10.1186/s13102-026-02231-5","doi":"https://doi.org/10.1186/s13102-026-02231-5","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13102-026-02231-5","pdf_url":null,"source":{"id":"https://openalex.org/S4210191135","display_name":"BMC Sports Science Medicine and Rehabilitation","issn_l":"2052-1847","issn":["2052-1847"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","doyens","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Sports Science, Medicine and Rehabilitation","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1186/s13102-026-02231-5","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5057677796","display_name":"Pedro Schons","orcid":"https://orcid.org/0000-0001-6875-7593","observed_orcids":["https://orcid.org/0000-0001-6875-7593"]},"institutions":[{"id":"https://openalex.org/I130442723","display_name":"Universidade Federal do Rio Grande do Sul","ror":"https://ror.org/041yk2d64","country_code":"BR","type":"education","lineage":["https://openalex.org/I130442723"]},{"id":"https://openalex.org/I192341844","display_name":"Universidade Polit\u00e9cnica de Viana do Castelo","ror":"https://ror.org/03w6kry90","country_code":"PT","type":"education","lineage":["https://openalex.org/I192341844"]}],"countries":["BR","PT"],"is_corresponding":true,"raw_author_name":"Pedro Schons","raw_affiliation_strings":["Faculdade SOGIPA, Porto Alegre, RS, Brazil","School of Physical Education, Physiotherapy and Dance, Swimming Center, Federal University of Rio Grande do Sul, Room 18, Felizardo Street, 750, Porto Alegre, RS, 90690-200, Brazil","Sport Physical Activity and Health Research & Innovation Center, Applied Research Institute, Escola Superior de Desporto e Lazer, Polytechnic University of Viana do Castelo, Viana do Castelo, Melga\u00e7o, Portugal"],"raw_orcid":"https://orcid.org/0000-0001-6875-7593","affiliations":[{"raw_affiliation_string":"Faculdade SOGIPA, Porto Alegre, RS, Brazil","institution_ids":[]},{"raw_affiliation_string":"School of Physical Education, Physiotherapy and Dance, Swimming Center, Federal University of Rio Grande do Sul, Room 18, Felizardo Street, 750, Porto Alegre, RS, 90690-200, Brazil","institution_ids":["https://openalex.org/I130442723"]},{"raw_affiliation_string":"Sport Physical Activity and Health Research & Innovation Center, Applied Research Institute, Escola Superior de Desporto e Lazer, Polytechnic University of Viana do Castelo, Viana do Castelo, Melga\u00e7o, Portugal","institution_ids":["https://openalex.org/I192341844"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065244433","display_name":"Artur Avelino Birk Preissler","orcid":"https://orcid.org/0000-0002-7516-2982","observed_orcids":["https://orcid.org/0000-0002-7516-2982"]},"institutions":[{"id":"https://openalex.org/I130442723","display_name":"Universidade Federal do Rio Grande do Sul","ror":"https://ror.org/041yk2d64","country_code":"BR","type":"education","lineage":["https://openalex.org/I130442723"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Artur Avelino Birk Preissler","raw_affiliation_strings":["Faculdade SOGIPA, Porto Alegre, RS, Brazil","School of Physical Education, Physiotherapy and Dance, Swimming Center, Federal University of Rio Grande do Sul, Room 18, Felizardo Street, 750, Porto Alegre, RS, 90690-200, Brazil"],"raw_orcid":"https://orcid.org/0000-0002-7516-2982","affiliations":[{"raw_affiliation_string":"Faculdade SOGIPA, Porto Alegre, RS, Brazil","institution_ids":[]},{"raw_affiliation_string":"School of Physical Education, Physiotherapy and Dance, Swimming Center, Federal University of Rio Grande do Sul, Room 18, Felizardo Street, 750, Porto Alegre, RS, 90690-200, Brazil","institution_ids":["https://openalex.org/I130442723"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017788626","display_name":"Filipe Manuel Clemente","orcid":"https://orcid.org/0000-0001-9813-2842","observed_orcids":["https://orcid.org/0000-0001-9813-2842"]},"institutions":[{"id":"https://openalex.org/I293362453","display_name":"Universidade Polit\u00e9cnica de Coimbra","ror":"https://ror.org/01n8x4993","country_code":"PT","type":"education","lineage":["https://openalex.org/I293362453"]},{"id":"https://openalex.org/I4210137546","display_name":"Gdansk University of Physical Education and Sport","ror":"https://ror.org/03rq9c547","country_code":"PL","type":"education","lineage":["https://openalex.org/I4210137546"]}],"countries":["PL","PT"],"is_corresponding":false,"raw_author_name":"Filipe Manuel Clemente","raw_affiliation_strings":["Gdansk University of Physical Education and Sport, Gda\u0144sk, 80-336, Poland","Polytechnic University of Coimbra, Coimbra, Portugal","The Sport Physical Activity and Health Research & Innovation Center, Applied Research Institute (i2A), Polytechnic University of Coimbra, Coimbra, Portugal"],"raw_orcid":"https://orcid.org/0000-0001-9813-2842","affiliations":[{"raw_affiliation_string":"Gdansk University of Physical Education and Sport, Gda\u0144sk, 80-336, Poland","institution_ids":["https://openalex.org/I4210137546"]},{"raw_affiliation_string":"Polytechnic University of Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I293362453"]},{"raw_affiliation_string":"The Sport Physical Activity and Health Research & Innovation Center, Applied Research Institute (i2A), Polytechnic University of Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I293362453"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050213548","display_name":"Rui Silva","orcid":"https://orcid.org/0000-0003-3380-864X","observed_orcids":["https://orcid.org/0000-0003-3380-864X"]},"institutions":[{"id":"https://openalex.org/I192341844","display_name":"Universidade Polit\u00e9cnica de Viana do Castelo","ror":"https://ror.org/03w6kry90","country_code":"PT","type":"education","lineage":["https://openalex.org/I192341844"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Rui Miguel Silva","raw_affiliation_strings":["Sport Physical Activity and Health Research & Innovation Center, Applied Research Institute, Escola Superior de Desporto e Lazer, Polytechnic University of Viana do Castelo, Viana do Castelo, Melga\u00e7o, Portugal"],"raw_orcid":"https://orcid.org/0000-0003-3380-864X","affiliations":[{"raw_affiliation_string":"Sport Physical Activity and Health Research & Innovation Center, Applied Research Institute, Escola Superior de Desporto e Lazer, Polytechnic University of Viana do Castelo, Viana do Castelo, Melga\u00e7o, Portugal","institution_ids":["https://openalex.org/I192341844"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100728048","display_name":"Ana Filipa Silva","orcid":"https://orcid.org/0000-0002-1772-1272","observed_orcids":["https://orcid.org/0000-0002-1772-1272"]},"institutions":[{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Ana Filipa Silva","raw_affiliation_strings":["Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal"],"raw_orcid":"https://orcid.org/0000-0002-1772-1272","affiliations":[{"raw_affiliation_string":"Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I76903346"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067598362","display_name":"Lucas Moraes Klein","orcid":"https://orcid.org/0000-0001-9222-7170","observed_orcids":["https://orcid.org/0000-0001-9222-7170"]},"institutions":[{"id":"https://openalex.org/I130442723","display_name":"Universidade Federal do Rio Grande do Sul","ror":"https://ror.org/041yk2d64","country_code":"BR","type":"education","lineage":["https://openalex.org/I130442723"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Lucas Moraes Klein","raw_affiliation_strings":["School of Physical Education, Physiotherapy and Dance, Swimming Center, Federal University of Rio Grande do Sul, Room 18, Felizardo Street, 750, Porto Alegre, RS, 90690-200, Brazil"],"raw_orcid":"https://orcid.org/0000-0001-9222-7170","affiliations":[{"raw_affiliation_string":"School of Physical Education, Physiotherapy and Dance, Swimming Center, Federal University of Rio Grande do Sul, Room 18, Felizardo Street, 750, Porto Alegre, RS, 90690-200, Brazil","institution_ids":["https://openalex.org/I130442723"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5089123767","display_name":"Eduardo Lusa Cadore","orcid":"https://orcid.org/0000-0003-4397-9485","observed_orcids":["https://orcid.org/0000-0003-4397-9485"]},"institutions":[{"id":"https://openalex.org/I130442723","display_name":"Universidade Federal do Rio Grande do Sul","ror":"https://ror.org/041yk2d64","country_code":"BR","type":"education","lineage":["https://openalex.org/I130442723"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Eduardo Lusa Cadore","raw_affiliation_strings":["School of Physical Education, Physiotherapy and Dance, Swimming Center, Federal University of Rio Grande do Sul, Room 18, Felizardo Street, 750, Porto Alegre, RS, 90690-200, Brazil"],"raw_orcid":"https://orcid.org/0000-0003-4397-9485","affiliations":[{"raw_affiliation_string":"School of Physical Education, Physiotherapy and Dance, Swimming Center, Federal University of Rio Grande do Sul, Room 18, Felizardo Street, 750, Porto Alegre, RS, 90690-200, Brazil","institution_ids":["https://openalex.org/I130442723"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5057677796"],"corresponding_institution_ids":["https://openalex.org/I130442723","https://openalex.org/I192341844"],"apc_list":{"value":2890,"currency":"USD","value_usd":2890},"apc_paid":{"value":2890,"currency":"USD","value_usd":2890},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10157","display_name":"Sports Performance and Training","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10157","display_name":"Sports Performance and Training","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10813","display_name":"Sport Psychology and Performance","score":0.0006000000284984708,"subfield":{"id":"https://openalex.org/subfields/3204","display_name":"Developmental and Educational Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11246","display_name":"Sports injuries and prevention","score":0.00039999998989515007,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[],"concepts":[{"id":"https://openalex.org/C69738355","wikidata":"https://www.wikidata.org/wiki/Q1228929","display_name":"Linear discriminant analysis","level":2,"score":0.7447999715805054},{"id":"https://openalex.org/C41771347","wikidata":"https://www.wikidata.org/wiki/Q1228929","display_name":"Discriminant function analysis","level":2,"score":0.7329999804496765},{"id":"https://openalex.org/C61427482","wikidata":"https://www.wikidata.org/wiki/Q6656244","display_name":"Anthropometry","level":2,"score":0.5943999886512756},{"id":"https://openalex.org/C2776868573","wikidata":"https://www.wikidata.org/wiki/Q46855","display_name":"Sprint","level":2,"score":0.5080999732017517},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.4690000116825104},{"id":"https://openalex.org/C2780082397","wikidata":"https://www.wikidata.org/wiki/Q216048","display_name":"Team sport","level":3,"score":0.46799999475479126},{"id":"https://openalex.org/C78397625","wikidata":"https://www.wikidata.org/wiki/Q192487","display_name":"Discriminant","level":2,"score":0.43790000677108765},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.421999990940094},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.41019999980926514},{"id":"https://openalex.org/C171687745","wikidata":"https://www.wikidata.org/wiki/Q309252","display_name":"Physical fitness","level":2,"score":0.40860000252723694},{"id":"https://openalex.org/C2778444522","wikidata":"https://www.wikidata.org/wiki/Q1081491","display_name":"Football","level":2,"score":0.40540000796318054},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.38109999895095825},{"id":"https://openalex.org/C3017797855","wikidata":"https://www.wikidata.org/wiki/Q937857","display_name":"Football players","level":3,"score":0.3621000051498413},{"id":"https://openalex.org/C104500394","wikidata":"https://www.wikidata.org/wiki/Q17104912","display_name":"Optimal discriminant analysis","level":3,"score":0.33980000019073486},{"id":"https://openalex.org/C153874254","wikidata":"https://www.wikidata.org/wiki/Q115542","display_name":"Canonical correlation","level":2,"score":0.3328000009059906},{"id":"https://openalex.org/C75630572","wikidata":"https://www.wikidata.org/wiki/Q538904","display_name":"Applied psychology","level":1,"score":0.31200000643730164},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.27639999985694885},{"id":"https://openalex.org/C153396756","wikidata":"https://www.wikidata.org/wiki/Q1785966","display_name":"Physical strength","level":2,"score":0.2759000062942505},{"id":"https://openalex.org/C196083921","wikidata":"https://www.wikidata.org/wiki/Q7915758","display_name":"Variance (accounting)","level":2,"score":0.2526000142097473},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.2508000135421753}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1186/s13102-026-02231-5","doi":"https://doi.org/10.1186/s13102-026-02231-5","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13102-026-02231-5","pdf_url":null,"source":{"id":"https://openalex.org/S4210191135","display_name":"BMC Sports Science Medicine and Rehabilitation","issn_l":"2052-1847","issn":["2052-1847"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","doyens","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Sports Science, Medicine and Rehabilitation","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1186/s13102-026-02231-5","doi":"https://doi.org/10.1186/s13102-026-02231-5","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13102-026-02231-5","pdf_url":null,"source":{"id":"https://openalex.org/S4210191135","display_name":"BMC Sports Science Medicine and Rehabilitation","issn_l":"2052-1847","issn":["2052-1847"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","doyens","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Sports Science, Medicine and Rehabilitation","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"To":[0],"propose":[1],"a":[2,71,133,174],"discriminant-function-based":[3],"mathematical":[4],"model":[5,73,123,166,194],"to":[6,13,21,69],"classify":[7],"youth":[8,98,191],"male":[9,33],"football":[10],"players":[11,35,99],"according":[12],"the":[14,145,148,158,186,193],"similarity":[15],"of":[16,52,136,144],"their":[17],"physical":[18,171,180],"fitness":[19],"profiles":[20,181],"those":[22],"observed":[23],"in":[24,147],"professional":[25,183],"players.":[26],"In":[27],"this":[28],"cross-sectional":[29],"study,":[30],"171":[31],"Brazilian":[32],"outfield":[34],"(90":[36],"youth;":[37],"81":[38],"professionals)":[39],"completed":[40],"anthropometric":[41],"assessment":[42],"and":[43,54,61,84,93,107,129],"performance":[44,96],"tests":[45],"(vertical":[46],"jumps,":[47],"20-m":[48,50,95,105],"sprint,":[49],"change":[51],"direction,":[53],"Yo-Yo":[55,108],"IRL1).":[56],"Group":[57],"differences":[58],"were":[59,78],"tested,":[60],"Fisher\u2019s":[62],"linear":[63],"discriminant":[64,122,149],"function":[65],"analysis":[66],"was":[67,155,162],"used":[68,197],"derive":[70],"classification":[72,153,187],"(\u03b1":[74],"<":[75,102],"0.05).":[76,119],"Professionals":[77],"older,":[79],"presented":[80],"higher":[81],"body":[82,125],"mass,":[83,126],"showed":[85],"better":[86],"squat":[87],"jump,":[88,90,92,128],"countermovement":[89,127],"drop":[91],"COD":[94,130],"than":[97],"(all":[100],"p":[101,117],"0.05),":[103],"while":[104,157],"sprint":[106],"IRL1":[109],"did":[110],"not":[111],"differ":[112],"significantly":[113],"between":[114],"groups":[115],"(":[116],">":[118],"The":[120,151],"final":[121],"retained":[124],"20-m,":[131],"showing":[132],"canonical":[134],"correlation":[135],"0.419,":[137],"with":[138],"group":[139],"membership":[140],"accounting":[141],"for":[142,178],"17.6%":[143],"variance":[146],"function.":[150],"original":[152],"accuracy":[154,161],"67.8%,":[156],"leave-one-out":[159],"cross-validated":[160],"66.7%.":[163],"A":[164],"parsimonious":[165],"based":[167],"on":[168],"routinely":[169],"collected":[170],"measures":[172],"provides":[173],"complementary":[175],"screening":[176],"tool":[177],"identifying":[179],"resembling":[182],"standards.":[184],"Considering":[185],"accuracy,":[188],"particularly":[189],"among":[190],"players,":[192],"should":[195],"be":[196],"alongside":[198],"multidimensional":[199],"evaluations.":[200]},"counts_by_year":[],"updated_date":"2026-11-12T12:28:57.059296","created_date":"2026-11-12T00:00:00"}