{"id":"https://openalex.org/W2968064009","doi":"https://doi.org/10.11648/j.ijsspe.20190402.11","title":"The Free Kick Kinematics of Elite Football Players","display_name":"The Free Kick Kinematics of Elite Football Players","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2968064009","doi":"https://doi.org/10.11648/j.ijsspe.20190402.11","mag":"2968064009"},"language":"en","primary_location":{"id":"doi:10.11648/j.ijsspe.20190402.11","doi":"https://doi.org/10.11648/j.ijsspe.20190402.11","is_oa":true,"landing_page_url":"https://doi.org/10.11648/j.ijsspe.20190402.11","pdf_url":"http://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsspe.20190402.11.pdf","source":{"id":"https://openalex.org/S4210178983","display_name":"International Journal of Sports Science and Physical Education","issn_l":"2575-1611","issn":["2575-1611","2575-226X"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310319272","host_organization_name":"Science Publishing Group","host_organization_lineage":["https://openalex.org/P4310319272"],"host_organization_lineage_names":["Science Publishing Group"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Sports Science and Physical Education","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"http://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsspe.20190402.11.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5059088692","display_name":"Dujaka Aziz","orcid":"https://orcid.org/0000-0003-3423-2435","observed_orcids":["https://orcid.org/0000-0003-3423-2435"]},"institutions":[{"id":"https://openalex.org/I78768387","display_name":"University of Prishtina","ror":"https://ror.org/05t3p2g92","country_code":"XK","type":"education","lineage":["https://openalex.org/I78768387"]}],"countries":["XK"],"is_corresponding":false,"raw_author_name":"Dujaka Aziz","raw_affiliation_strings":["Faculty of Physical Education and Sport, University Hasan Prishtina, Pristina, Kosovo"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Physical Education and Sport, University Hasan Prishtina, Pristina, Kosovo","institution_ids":["https://openalex.org/I78768387"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046517906","display_name":"Bylbyl Sokoli","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I78768387","display_name":"University of Prishtina","ror":"https://ror.org/05t3p2g92","country_code":"XK","type":"education","lineage":["https://openalex.org/I78768387"]}],"countries":["XK"],"is_corresponding":false,"raw_author_name":"Sokoli Bylbyl","raw_affiliation_strings":["Faculty of Physical Education and Sport, University Hasan Prishtina, Pristina, Kosovo"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Physical Education and Sport, University Hasan Prishtina, Pristina, Kosovo","institution_ids":["https://openalex.org/I78768387"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I78768387"],"apc_list":null,"apc_paid":null,"fwci":0.264,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.48480493,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"4","issue":"2","first_page":"18","last_page":"18"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12677","display_name":"Sports Dynamics and Biomechanics","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12677","display_name":"Sports Dynamics and Biomechanics","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10157","display_name":"Sports Performance and Training","score":0.002899999963119626,"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/T11018","display_name":"Lower Extremity Biomechanics and Pathologies","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/free-kicks","display_name":"free kicks","score":0.9760000109672546},{"id":"https://openalex.org/keywords/instep-kick","display_name":"instep kick","score":0.9309999942779541},{"id":"https://openalex.org/keywords/cristiano-ronaldo","display_name":"Cristiano Ronaldo","score":0.7990000247955322},{"id":"https://openalex.org/keywords/elite-football","display_name":"elite football","score":0.6230000257492065},{"id":"https://openalex.org/keywords/approach-phase","display_name":"approach phase","score":0.734000027179718},{"id":"https://openalex.org/keywords/swing-leg","display_name":"swing leg","score":0.7450000047683716},{"id":"https://openalex.org/keywords/supporting-leg","display_name":"supporting leg","score":0.9430000185966492},{"id":"https://openalex.org/keywords/joint-angles","display_name":"joint angles","score":0.6430000066757202},{"id":"https://openalex.org/keywords/knee-joint-angle","display_name":"knee joint angle","score":0.5040000081062317},{"id":"https://openalex.org/keywords/hip-flexion","display_name":"hip flexion","score":0.9089999794960022},{"id":"https://openalex.org/keywords/foot-placement","display_name":"foot placement","score":0.328000009059906}],"concepts":[{"id":"https://openalex.org/C65655974","wikidata":"https://www.wikidata.org/wiki/Q14867674","display_name":"Swing","level":2,"score":0.7625057697296143},{"id":"https://openalex.org/C39920418","wikidata":"https://www.wikidata.org/wiki/Q11476","display_name":"Kinematics","level":2,"score":0.741249680519104},{"id":"https://openalex.org/C122041747","wikidata":"https://www.wikidata.org/wiki/Q838611","display_name":"Ball (mathematics)","level":2,"score":0.6148665547370911},{"id":"https://openalex.org/C5594486","wikidata":"https://www.wikidata.org/wiki/Q161635","display_name":"Angular velocity","level":2,"score":0.511756181716919},{"id":"https://openalex.org/C2778444522","wikidata":"https://www.wikidata.org/wiki/Q1081491","display_name":"Football","level":2,"score":0.46072107553482056},{"id":"https://openalex.org/C2778640784","wikidata":"https://www.wikidata.org/wiki/Q168002","display_name":"Ankle","level":2,"score":0.44494158029556274},{"id":"https://openalex.org/C108439606","wikidata":"https://www.wikidata.org/wiki/Q3305038","display_name":"Angular displacement","level":2,"score":0.4243181049823761},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3632252812385559},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.34501802921295166},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3374320864677429},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.2560253441333771},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.19515106081962585},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.14190080761909485},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0975872278213501},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.09728649258613586},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.06717342138290405},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.11648/j.ijsspe.20190402.11","doi":"https://doi.org/10.11648/j.ijsspe.20190402.11","is_oa":true,"landing_page_url":"https://doi.org/10.11648/j.ijsspe.20190402.11","pdf_url":"http://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsspe.20190402.11.pdf","source":{"id":"https://openalex.org/S4210178983","display_name":"International Journal of Sports Science and Physical Education","issn_l":"2575-1611","issn":["2575-1611","2575-226X"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310319272","host_organization_name":"Science Publishing Group","host_organization_lineage":["https://openalex.org/P4310319272"],"host_organization_lineage_names":["Science Publishing Group"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Sports Science and Physical Education","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.11648/j.ijsspe.20190402.11","doi":"https://doi.org/10.11648/j.ijsspe.20190402.11","is_oa":true,"landing_page_url":"https://doi.org/10.11648/j.ijsspe.20190402.11","pdf_url":"http://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsspe.20190402.11.pdf","source":{"id":"https://openalex.org/S4210178983","display_name":"International Journal of Sports Science and Physical Education","issn_l":"2575-1611","issn":["2575-1611","2575-226X"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310319272","host_organization_name":"Science Publishing Group","host_organization_lineage":["https://openalex.org/P4310319272"],"host_organization_lineage_names":["Science Publishing Group"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Sports Science and Physical Education","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2968064009.pdf","grobid_xml":"https://content.openalex.org/works/W2968064009.grobid-xml"},"referenced_works_count":32,"referenced_works":["https://openalex.org/W202088397","https://openalex.org/W580992549","https://openalex.org/W621821312","https://openalex.org/W1518184997","https://openalex.org/W1707473401","https://openalex.org/W1966370362","https://openalex.org/W1977218220","https://openalex.org/W1983745624","https://openalex.org/W1984177481","https://openalex.org/W2005361069","https://openalex.org/W2007430208","https://openalex.org/W2020740859","https://openalex.org/W2030437586","https://openalex.org/W2047486352","https://openalex.org/W2065227407","https://openalex.org/W2084431570","https://openalex.org/W2085816541","https://openalex.org/W2103206704","https://openalex.org/W2117603706","https://openalex.org/W2139495141","https://openalex.org/W2150674678","https://openalex.org/W2277136118","https://openalex.org/W3080226626","https://openalex.org/W3085143474","https://openalex.org/W3119406450","https://openalex.org/W4231281998","https://openalex.org/W4237438407","https://openalex.org/W4251137891","https://openalex.org/W6694602122","https://openalex.org/W6732155098","https://openalex.org/W6777323660","https://openalex.org/W6829414835"],"related_works":["https://openalex.org/W2967050830","https://openalex.org/W7208625167","https://openalex.org/W2006207524","https://openalex.org/W2284595740","https://openalex.org/W2118006957","https://openalex.org/W4399192544","https://openalex.org/W6999191252","https://openalex.org/W2756298823","https://openalex.org/W7164261151","https://openalex.org/W2913403201"],"abstract_inverted_index":{"We":[0,44,94],"have":[1,80,95],"considered":[2],"the":[3,7,12,18,21,26,39,46,76,82,85,98,129,136,143,154,168,180,184,196,199,203,207,210,215],"kinematics":[4],"parameters":[5],"for":[6],"free":[8,65],"instep":[9,66],"kick":[10,67],"of":[11,20,38,61,63,84,92,108,124,138,142,162,172,176,182,187,198,209,225],"elite":[13],"footballer":[14],"(Cristiano":[15],"Ronaldo),":[16],"in":[17,90,114,202],"pace":[19],"swing":[22,144],"leg":[23,28,145,150],"movement":[24],"and":[25,35,52,73,212,223,228],"supporting":[27],"with":[29,195,206,214],"linear":[30,160],"velocity":[31,37,161],"measurement,":[32],"angular":[33,36],"displacement":[34],"joints":[40],"(ankle,":[41],"knee,":[42],"hip).":[43],"used":[45],"cinematographically":[47],"method":[48],"through":[49],"Kinovea-0.8.26-win32.":[50],"exe":[51],"Photo":[53],"Suite":[54],"4":[55],"Platinum":[56],"Editor":[57],"from":[58],"MGI":[59],"Software":[60],"filming":[62],"a":[64,106,159,170],"(10.":[68],"LaLiga,":[69],"vs.":[70],"Villarreal,":[71],"21/02/2010),":[72],"where":[74],"as":[75],"caliber":[77],"size":[78],"we":[79],"taken":[81],"diameter":[83],"ball,":[86],"creating":[87],"its":[88],"kinograms":[89],"stages":[91],"movement.":[93],"especially":[96],"analyzed":[97],"Approach":[99],"phase":[100,189,224],"which":[101,111,190],"Cristiano":[102,191],"Ronaldo":[103,192],"traverses":[104],"at":[105],"distance":[107,131],"4.0":[109],"m,":[110],"is":[112,126,132,146,156,179,193],"passed":[113],"3":[115],"steps":[116],"(1.14":[117],"m;":[118,120],"1.72":[119],"2.75":[121],"m).":[122],"Angle":[123],"approach":[125,188],"40":[127],"degrees,":[128],"free-kick":[130],"30":[133],"m.":[134],"During":[135],"contact":[137],"foot/ball,":[139],"knee":[140,229],"angle":[141],"132":[147],"degrees":[148],"(support":[149],"153":[151],"deg),":[152],"while":[153],"ball":[155,169],"hit":[157],"by":[158],"ankle":[163],"joint":[164],"17.5":[165],"m/s,":[166],"giving":[167],"speed":[171],"13.7":[173],"m/s.":[174],"Result":[175],"this":[177],"research":[178],"way":[181],"execution":[183],"second":[185],"step":[186],"performing":[194],"placement":[197],"right":[200],"foot":[201],"ground":[204],"only":[205],"tip":[208],"fingers":[211],"not":[213],"whole":[216],"foot,":[217],"passing":[218],"quickly":[219],"backs":[220],"winging":[221],"phase,":[222],"hip":[226],"flexion":[227],"extension":[230],"during":[231],"downward":[232],"motion.":[233]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2019-08-22T00:00:00"}