Thesis (M.A.)--San Jose State University, 2003. / Includes bibliographical references (leaves 63-67). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

Thesis (M.A.)--San Jose State University, 2003. / Includes bibliographical references (leaves 63-67).

Made available in DSpace on 2014-06-11T19:22:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-10-11Bitstream added on 2014-06-13T18:08:47Z : No. of bitstreams: 1 wisiak_m_me_rcla.pdf: 1101847 bytes, checksum: f7822a8459a41a9f538cc34d76466ce5 (MD5) / Fundação para o Desenvolvimento da UNESP (FUNDUNESP) / As cobranças de pênaltis podem apresentar um papel decisivo no resultado de uma partida e principalmente em grandes competições do Futebol. Mesmo sendo conhecida sua importância no esporte, é pequena a atenção desenvolvida pela literatura científica e técnica acerca desse evento. Portanto, é necessário o desenvolvimento de estudos voltados a análises das cobranças para obter informações que possam explicar fatores que proporcionam o sucesso dos goleiros frente às cobranças. O presente estudo realizou análise cinemática da velocidade da bola (VB), velocidade média dos cobradores (VC), distância da corrida (DC) e tempo de antecipação dos goleiros (TA) entre as cobranças convertidas em gol (CG) e defendidas (CD) em cobranças de pênaltis. Participaram do estudo 12 atletas de futebol de campo profissional da equipe Rio Claro Futebol Clube, divididos em 3 equipes por sorteio. Cada equipe era composta por 1 goleiro e 3 cobradores. Foram filmadas disputas alternadas entre as equipes totalizando 44 cobranças. As imagens foram armazenadas em um computador por uma placa de captura. Foi utilizado o software Dvideow para obter as coordenadas bidimensionais dos atletas e tridimensionais da bola em função do tempo. Para verificar a correlação entre as variáveis de VB e da corrida dos cobradores, foi utilizado o teste de correlação de Pearson. Para verificar diferenças entre as variáveis do estudo, foi utilizado o Boxplot e os dados foram representados pela respectiva mediana. Obteve-se a seguinte classificação: 25 CG (57%), 14 CD (32 %), 4 na trave (9%) e 1 para fora do gol (2%). Não foram verificadas correlações entre as VC em relação às VB entre as CG e CD (r=-0.0678, r2=0.0046, p=0.6817) e v entre as VC com as respectivas AC (r=0.2651, r2=0.0703, p=0.1028). Não existem diferenças significativas entre os valores das VB nas CG (98.5 km/h) e CD (94.6 Km/h)... / The penalty kicks can present a decisive aspect in the result of a match and mainly in great competitions of soccer. Even being known its importance in the sport, it is small the attention developed by the scientific literature and technique concerning this event. Therefore, it is necessary the development of studies to analyze penalty kicks to get information that can explain some factors that provide to the success of the goalkeepers front to the penalty kicks. The present study analyze the penalty kicks kinematics in order to verify differences in the variables of the speed of the ball (SB), average speed of the kickers (SK), distance of the kicker race (DR) and time of anticipation of the goalkeeper (TA) between the penalty kicks converted into goal (CG) and defended (D). Have participated of this study 12 athletes of professional soccer players of the Rio Claro Futebol Club team, divided randomly into 3 teams. Each team was composed for 1 goalkeeper and 3 kickers. They have been filmed forty four penalty kicks in alternated disputes between the teams. The images have been stored by the capture plate in a computer. After that, it was used the Dvideow software to get the 2D coordinates of the speed ball and 3D coordinates of the athletes in function of the time. To verify the correlation between the SB variables and of the race of the kickers, it was used the Pearson test. To verify differences between the variables of the study, the method of analysis for 78 boxplot was adopted and the data had been represented by its respective median. It was not verified correlation between the SK and SB of the CG and D (r=-0.0678, r2=0.0046, p=0.6817) and between the SK and its respective DR (r=0.2651, r2=0.0703, p=0.1028). Differences between the values of the SB between the CG (98,5 km/h) and D do not exist (94,6 Km/h), as well as of the DR (CG 4,4 x D 4.4 m), SK (CG 2,5 x D 2,1 m/s)... Complete abstract, click electronic address below)

Orientador: Sergio Augusto Cunha / Banca: Luciano Allegretti Mercadante / Banca: Claudio Alexandre Gobatto / Resumo: As cobranças de pênaltis podem apresentar um papel decisivo no resultado de uma partida e principalmente em grandes competições do Futebol. Mesmo sendo conhecida sua importância no esporte, é pequena a atenção desenvolvida pela literatura científica e técnica acerca desse evento. Portanto, é necessário o desenvolvimento de estudos voltados a análises das cobranças para obter informações que possam explicar fatores que proporcionam o sucesso dos goleiros frente às cobranças. O presente estudo realizou análise cinemática da velocidade da bola (VB), velocidade média dos cobradores (VC), distância da corrida (DC) e tempo de antecipação dos goleiros (TA) entre as cobranças convertidas em gol (CG) e defendidas (CD) em cobranças de pênaltis. Participaram do estudo 12 atletas de futebol de campo profissional da equipe Rio Claro Futebol Clube, divididos em 3 equipes por sorteio. Cada equipe era composta por 1 goleiro e 3 cobradores. Foram filmadas disputas alternadas entre as equipes totalizando 44 cobranças. As imagens foram armazenadas em um computador por uma placa de captura. Foi utilizado o software Dvideow para obter as coordenadas bidimensionais dos atletas e tridimensionais da bola em função do tempo. Para verificar a correlação entre as variáveis de VB e da corrida dos cobradores, foi utilizado o teste de correlação de Pearson. Para verificar diferenças entre as variáveis do estudo, foi utilizado o Boxplot e os dados foram representados pela respectiva mediana. Obteve-se a seguinte classificação: 25 CG (57%), 14 CD (32 %), 4 na trave (9%) e 1 para fora do gol (2%). Não foram verificadas correlações entre as VC em relação às VB entre as CG e CD (r=-0.0678, r2=0.0046, p=0.6817) e v entre as VC com as respectivas AC (r=0.2651, r2=0.0703, p=0.1028). Não existem diferenças significativas entre os valores das VB nas CG (98.5 km/h) e CD (94.6 Km/h)... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The penalty kicks can present a decisive aspect in the result of a match and mainly in great competitions of soccer. Even being known its importance in the sport, it is small the attention developed by the scientific literature and technique concerning this event. Therefore, it is necessary the development of studies to analyze penalty kicks to get information that can explain some factors that provide to the success of the goalkeepers front to the penalty kicks. The present study analyze the penalty kicks kinematics in order to verify differences in the variables of the speed of the ball (SB), average speed of the kickers (SK), distance of the kicker race (DR) and time of anticipation of the goalkeeper (TA) between the penalty kicks converted into goal (CG) and defended (D). Have participated of this study 12 athletes of professional soccer players of the Rio Claro Futebol Club team, divided randomly into 3 teams. Each team was composed for 1 goalkeeper and 3 kickers. They have been filmed forty four penalty kicks in alternated disputes between the teams. The images have been stored by the capture plate in a computer. After that, it was used the Dvideow software to get the 2D coordinates of the speed ball and 3D coordinates of the athletes in function of the time. To verify the correlation between the SB variables and of the race of the kickers, it was used the Pearson test. To verify differences between the variables of the study, the method of analysis for 78 boxplot was adopted and the data had been represented by its respective median. It was not verified correlation between the SK and SB of the CG and D (r=-0.0678, r2=0.0046, p=0.6817) and between the SK and its respective DR (r=0.2651, r2=0.0703, p=0.1028). Differences between the values of the SB between the CG (98,5 km/h) and D do not exist (94,6 Km/h), as well as of the DR (CG 4,4 x D 4.4 m), SK (CG 2,5 x D 2,1 m/s)... Complete abstract, click electronic address below) / Mestre

Background: Hip and groin pain is common in ice hockey and particular in goaltenders, because their movement patterns make them particularly vulnerable. "Skate to the post-technique” (SMS-technique) is a relatively new technique that the goaltenders uses and no studies have been published where the SMS-technique is studied and the hypothesis is that the hip is subjected to high stresses which can lead to hip and/or groin pain. Purpose: The purpose of this study was to investigate the prevalence of hip/groin pain in male ice hockey goaltenders of elite level in Sweden and if factors such as age, level of SMS-technique use and prevention training can be linked with the pain. The study also examines whether the goalies are concerned of injuring the hip and/or groin. Method: Descriptive and comparative cross-sectional study consisted of an online survey in which 57 % of 94 goaltenders participated. Results: A total of 63 % responded that they have pain in the hip/groin every month or more frequently. Over half of the goaltenders follow a specific training program and a significant difference in pain incidence was seen between them and those who do not follow a training program, p = 0.01. Most responded that they are more or less worried of getting hurt in the hip/groin. No significant difference in the occurrence of pain could be observed at different degrees of using SMS-technique. Conclusion: Many goaltenders have hip/groin pain and those who have pain are more often following a specific exercise program to prevent injuries in the hip and/or groin. / Bakgrund: Höft och ljumsksmärta är vanligt inom ishockey och främst hos målvakterna eftersom deras rörelsemönster gör dem extra utsatta. ”Skridsko mot stolpe-tekniken” (SMS-tekniken) är en relativt ny teknik som målvakter använder och inga studier har i nuläget publicerats där den studerats och hypotesen är att höften utsätts för stora påfrestningar vilket kan leda till höft/ljumsksmärta. Syfte: Syftet med studien var att undersöka prevalensen av höft/ljumsksmärta hos manliga ishockeymålvakter på elitnivå i Sverige samt om faktorer som grad av SMS-teknikanvändande och förebyggande träning kunde kopplas samman med den smärtan samt om målvakterna var oroliga för att skada sig. Metod: Deskriptiv och komparativ tvärsnittsstudie som bestod av en webbaserad enkät som distribuerades till 94 målvakter och där 57 % deltog. Resultat: Totalt 63 % hade ont i höft/ljumske varje månad eller oftare. Över hälften av målvakterna följde ett specifikt träningsprogram och en signifikant skillnad i smärtprevalens kunde ses mellan dem och de som inte följde ett träningsprogram, p=0,01. De flesta var mer eller mindre oroliga för att skada sig i höft/ljumske. Ingen signifikant skillnad i smärtförekomst kunde ses vid olika grader av SMS-teknikanvändande. Konklusion: Många målvakter hade höft/ljumsksmärta och de som hade ont följde i högre grad ett specifikt träningsprogram för att förebygga skador.

Syfte och frågeställningar Studiens syfte är att undersöka relationen mellan ungdomsmålvakters resultat i vanligt förekommande standardtester som är avsedda att mäta fysisk kapacitet och deras prestation i matchlika aktioner. Syftet är också att undersöka om resultaten skiljer sig mellan målvakter i två olika ålderskategorier. Frågeställningar: Vad är korrelation mellan resultat i standardtester och matchlika aktioner? Skiljer sig resultaten mellan ungdomsmålvakter på U17 och U19 nivå? Metod För att svara på studiens frågeställningar skapades ett testbatteri innehållande fysiska tester designade för fotbollsmålvakter, utifrån deras rörelsemönster och aktioner (verklighetsnära tester), som jämförs med tester som används av dagens fotbollsklubbar (standardtester). Med hjälp av aktuellt forskningsläge tillsammans med information som mottagits från tränare och målvakter, utfördes 6 tester, på 15 målvakter, som registrerades med mätinstrument och höghastighetskameror. Resultatet analyserades med dubbelsidig t-test för att finna en statistisk signifikans mellan två åldersgrupper och Spearmans test för att finna en korrelation mellan standard- och verklighetsnära testerna. Resultat Resultatet från t-testet visade ingen signifikant skillnad mellan U17:s och U19:s målvakter på samtliga tester (p> 0,05). Spearmans test visade ingen statistiskt signifikant korrelation mellan testerna. Slutsats Både standard- och verklighetsnära testerna har sina fördelar men är syftet att utvärdera målvaktens fysiska kapacitet i matchlika situationer genom tester, bör dessa vara utformade utifrån målvaktens agerande under match. Enligt resultaten från denna studie visar detta att man inte enbart kan använda standardtester utan dessa bör kompletteras med tester specifikt utformade för måvakter. / Aim The aim of the study is to investigate the relationship between youth goalkeepers' results in commonly used standard tests that are intended to measure physical capacity and their performance in match-like actions. The purpose is also to investigate whether the results differ between goalkeepers in two different age categories. Research questions: What is the correlation between results in standard tests and match-like actions? Do the results differ between youth goalkeepers at U17 and U19 level? Method To answer the study's questions, a test battery was created containing physical tests designed for football goalkeepers based on their movement patterns and actions (match-like actions) compared to tests used by today's football clubs (standard tests). With the help of research, together with information we received from coaches and goalkeepers, 6 tests were designed and performed, on 15 goalkeepers, which were recorded with measuring instruments and high-speed cameras. The results were analyzed with two tailed t-test to find a statistical significance between the two age groups and Spearman's test to find a correlation between the standard and realistic tests. Results The results of the t-test show no significant difference between the U17 and U19 goalkeepers on all tests (p> 0.05). Spearman's test shows that there was no statistic significant correlation between the tests. Conclusions Both standard and realistic tests have their advantages, but if the purpose is to evaluate the goalkeeper's physical capacity in match-like actions through tests, should these be designed based on the goalkeeper's actions during the match. According to the results of this study, this shows that you should not just use standard tests, but these should be supplemented with tests specifically designed for goalkeepers.