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[PMID]:28459281
[Au] Autor:Hides JA; Walsh JC; Smith MMF; Mendis MD
[Ad] Endereço:Centre for Musculoskeletal Research, Mary MacKillop Institute for Health Research, Australian Catholic University, Brisbane, Australia.
[Ti] Título:Self-Managed Exercises, Fitness and Strength Training, and Multifidus Muscle Size in Elite Footballers.
[So] Source:J Athl Train;52(7):649-655, 2017 Jul.
[Is] ISSN:1938-162X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:CONTEXT: Low back pain (LBP) and lower limb injuries are common among Australian Football League (AFL) players. Smaller size of 1 key trunk muscle, the lumbar multifidus (MF), has been associated with LBP and injuries in footballers. The size of the MF muscle has been shown to be modifiable with supervised motor-control training programs. Among AFL players, supervised motor-control training has also been shown to reduce the incidence of lower limb injuries and was associated with increased player availability for games. However, the effectiveness of a self-managed MF exercise program is unknown. OBJECTIVE: To investigate the effect of self-managed exercises and fitness and strength training on MF muscle size in AFL players with or without current LBP. DESIGN: Cross-sectional study. SETTING: Professional AFL context. PATIENTS OR OTHER PARTICIPANTS: Complete data were available for 242 players from 6 elite AFL clubs. INTERVENTION(S): Information related to the presence of LBP and history of injury was collected at the start of the preseason. At the end of the preseason, data were collected regarding performance of MF exercises as well as fitness and strength training. Ultrasound imaging of the MF muscle was conducted at the start and end of the preseason. MAIN OUTCOME MEASURE(S): Size of the MF muscles. RESULTS: An interaction effect was found between performance of MF exercises and time (F = 13.89, P ≤ .001). Retention of MF muscle size was greatest in players who practiced the MF exercises during the preseason (F = 4.77, P = .03). Increased adherence to fitness and strength training was associated with retained MF muscle size over the preseason (F = 5.35, P = .02). CONCLUSIONS: Increased adherence to a self-administered MF exercise program and to fitness and strength training was effective in maintaining the size of the MF muscle in the preseason.
[Mh] Termos MeSH primário: Traumatismos em Atletas/prevenção & controle
Terapia por Exercício/métodos
Futebol Americano/fisiologia
Região Lombossacral/fisiologia
Músculos Paraespinais/fisiologia
Treinamento de Resistência/métodos
[Mh] Termos MeSH secundário: Adulto
Austrália
Estudos Transversais
Feminino
Futebol Americano/lesões
Seres Humanos
Dor Lombar/prevenção & controle
Masculino
Ultrassonografia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170502
[St] Status:MEDLINE
[do] DOI:10.4085/1062-6050-52.3.13


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[PMID]:29392297
[Au] Autor:DeKosky ST; Jaffee M; Bauer R
[Ad] Endereço:McKnight Brain Institute, Department of Neurology, University of Florida College of Medicine, Gainesville.
[Ti] Título:Long-term Mortality in NFL Professional Football Players: No Significant Increase, but Questions Remain.
[So] Source:JAMA;319(8):773-775, 2018 02 27.
[Is] ISSN:1538-3598
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Futebol Americano
Futebol
[Mh] Termos MeSH secundário: Seres Humanos
[Pt] Tipo de publicação:EDITORIAL; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; COMMENT
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:180203
[St] Status:MEDLINE
[do] DOI:10.1001/jama.2017.20885


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[PMID]:29293379
[Au] Autor:Anderson R; Coughlin M; Jastifer J; McCullough K
[Ti] Título:Letter Regarding: Performance and Return to Sport After Achilles Tendon Repair in National Football League Players.
[So] Source:Foot Ankle Int;39(1):130, 2018 01.
[Is] ISSN:1944-7876
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Tendão do Calcâneo
Futebol Americano
[Mh] Termos MeSH secundário: Seres Humanos
Volta ao Esporte
Futebol
[Pt] Tipo de publicação:LETTER; COMMENT
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180103
[St] Status:MEDLINE
[do] DOI:10.1177/1071100717745265


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[PMID]:29293378
[Au] Autor:Jack RA; Sochacki KR; Gardner SS; McCulloch PC; Lintner DM; Cosculluela PE; Varner KE; Harris JD
[Ti] Título:Response to "Letter Regarding: Performance and Return to Sport After Achilles Tendon Repair in National Football League Players".
[So] Source:Foot Ankle Int;39(1):131-132, 2018 01.
[Is] ISSN:1944-7876
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Tendão do Calcâneo
Futebol Americano
[Mh] Termos MeSH secundário: Seres Humanos
Volta ao Esporte
Futebol
[Pt] Tipo de publicação:LETTER; COMMENT
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180103
[St] Status:MEDLINE
[do] DOI:10.1177/1071100717745266


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[PMID]:28282754
[Au] Autor:Gabbett TJ; Hulin BT
[Ad] Endereço:a Gabbett Performance Solutions , Brisbane , Australia.
[Ti] Título:Activity and recovery cycles and skill involvements of successful and unsuccessful elite rugby league teams: A longitudinal analysis of evolutionary changes in National Rugby League match-play.
[So] Source:J Sports Sci;36(2):180-190, 2018 Jan.
[Is] ISSN:1466-447X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:We investigated changes in activity and recovery cycles and skill involvements: (1) during National Rugby league (NRL) match-play from 2004 to 2014 and (2) among successful and unsuccessful teams over the same period. Teams were divided into 4 tiers according to final ladder position: (A) 1st-4th, (B) 5th-8th, (C) 9th-12th and (D) 13th-16th. Total, mean and maximum ball-in-play time decreased, while recovery time increased from 2004 to 2014. Offensive and defensive skill involvements changed differentially over time with moderate to large reductions in the number of play-the-balls, offloads and missed tackles, and moderate to large increases in the number of passes, tackles made and ineffective tackles. The gap between Tier A and Tier D decreased for mean activity time and the proportion of short (<45 s) ball-in-play periods. Conversely, the gap between Tier A and Tier D increased for skill involvements, with Tier A completing more play-the-balls, and Tier D performing a greater number of offloads, and total, missed and ineffective tackles. Our results demonstrate the decreasing ball-in-play demands of NRL competition over 11 seasons. However, our data also highlight the narrowing gap in ball-in-play demands, and increasing gap in skill involvements between the top tier and bottom tier teams.
[Mh] Termos MeSH primário: Desempenho Atlético/fisiologia
Comportamento Competitivo/fisiologia
Futebol Americano/fisiologia
Destreza Motora/fisiologia
[Mh] Termos MeSH secundário: Seres Humanos
Estudos Longitudinais
Estudos Prospectivos
Estudos de Tempo e Movimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170312
[St] Status:MEDLINE
[do] DOI:10.1080/02640414.2017.1288918


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[PMID]:29279558
[Au] Autor:Chinzei N; Hashimoto S; Hayashi S; Kanzaki N; Araki D; Kuroda R; Kurosaka M
[Ad] Endereço:Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine.
[Ti] Título:Consecutive Bilateral Hip Arthroscopy for Symptomatic Bilateral Femoroacetabular Impingement in an Elite Rugby player: A Case Report.
[So] Source:J Nippon Med Sch;84(6):280-285, 2017.
[Is] ISSN:1347-3409
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:We report a case of concurrent bilateral hip arthroscopy for symptomatic bilateral femoroacetabular impingement (FAI) performed under the single anesthesia on an elite rugby player. A 27-year-old rugby player who played for a top league had bilateral hip joint pain. Physical examination revealed bilateral tenderness in the anterior area of the hips, with positive impingement signs. Based on the findings of hip radiography and magnetic resonance imaging, the patient's symptoms were diagnosed as bilateral FAI with hip labral tears. Bilateral hip arthroscopy under the single anesthesia was performed due to refractory symptoms. He returned to regular rugby games without any symptoms in either hip. Bilateral hip arthroscopic surgery under the single anesthesia should be an effective treatment for typical and symptomatic FAI, even in elite athletes.
[Mh] Termos MeSH primário: Anestesia
Artroscopia/métodos
Atletas
Traumatismos em Atletas/cirurgia
Impacto Femoroacetabular/cirurgia
Futebol Americano
[Mh] Termos MeSH secundário: Adulto
Traumatismos em Atletas/diagnóstico por imagem
Traumatismos em Atletas/reabilitação
Impacto Femoroacetabular/diagnóstico por imagem
Impacto Femoroacetabular/reabilitação
Articulação do Quadril/diagnóstico por imagem
Articulação do Quadril/cirurgia
Seres Humanos
Imagem por Ressonância Magnética
Masculino
Radiografia
Resultado do Tratamento
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180222
[Lr] Data última revisão:
180222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171228
[St] Status:MEDLINE
[do] DOI:10.1272/jnms.84.280


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[PMID]:29252639
[Au] Autor:Van Nortwick S; Beck N; Li M
[Ad] Endereço:Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, Minnesota.
[Ti] Título:Adolescent Hip Fracture-Dislocation: Transphyseal Fracture with Posterior Dislocation of the Proximal Femoral Epiphysis: A Case Report.
[So] Source:JBJS Case Connect;6(3):e62, 2016 Jul-Sep.
[Is] ISSN:2160-3251
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:CASE: A 13-year-old male patient sustained a posterior transphyseal hip fracture-dislocation while playing football. A surgical hip dislocation with a trochanteric flip osteotomy, as described by Ganz and colleagues, was performed. Drilling of the dislocated epiphysis demonstrated no blood flow. Transepiphyseal and transphyseal fracture fixation with screws was performed. Two years after the injury, the patient had no evidence of osteonecrosis or functional limitations. CONCLUSION: Traumatic transepiphyseal fracture-dislocations are rare injuries that commonly result in osteonecrosis. Application of the Ganz surgical hip-dislocation technique to a difficult pediatric hip fracture-dislocation achieved an excellent result.
[Mh] Termos MeSH primário: Futebol Americano/lesões
Fixação Interna de Fraturas
Luxação do Quadril/diagnóstico por imagem
Fraturas do Quadril/cirurgia
[Mh] Termos MeSH secundário: Adolescente
Fraturas do Quadril/diagnóstico por imagem
Seres Humanos
Masculino
Recuperação de Função Fisiológica
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180216
[Lr] Data última revisão:
180216
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE
[do] DOI:10.2106/JBJS.CC.15.00271


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[PMID]:28281879
[Au] Autor:Jones B; Till K; Roe G; O'Hara J; Lees M; Barlow MJ; Hind K
[Ad] Endereço:a Institute for Sport, Physical Activity and Leisure , Leeds Beckett University , Leeds , UK.
[Ti] Título:Six-year body composition change in male elite senior rugby league players.
[So] Source:J Sports Sci;36(3):266-271, 2018 Feb.
[Is] ISSN:1466-447X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This study investigated the change in body composition and bone mineral content (BMC) of senior rugby league (RL) players between 2008 and 2014. Twelve male professional RL players (age, 24.6 ± 4.0 years; stature, 183.4 ± 8.4 cm) received a dual-energy X-ray absorptiometry scan during preseason in 2008 and 2014. Between 2008 and 2014, very likely increases in leg lean mass (LM), total trunk and leg BMC, and a likely increase in arm BMC and possible increases in body mass (BM), total and trunk fat mass (FM), and total, trunk and arm LM were observed. Unlikely decreases and unclear changes in leg and arm FM were also found. Large negative correlations were observed between age and BM (r = -0.72), LM (r = -0.70), FM (r = -0.61) and BMC (r = -0.84) change. Three participants (19.1 ± 1.6 years) increased LM by 7.0-9.3 kg. Younger players had the largest increases in LM during this period, although an older player (30-year old) still increased LM. Differences in body composition change were also observed for participants of the same age, thus contextual factors should be considered. This study demonstrates the individuality of body composition changes in senior professional rugby players, while considering the potential change in young athletes.
[Mh] Termos MeSH primário: Composição Corporal/fisiologia
Densidade Óssea/fisiologia
Futebol Americano/fisiologia
[Mh] Termos MeSH secundário: Absorciometria de Fóton
Adulto
Fatores Etários
Braço/anatomia & histologia
Seres Humanos
Perna (Membro)/anatomia & histologia
Estudos Longitudinais
Masculino
Fatores de Tempo
Tronco/anatomia & histologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; OBSERVATIONAL STUDY
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170311
[St] Status:MEDLINE
[do] DOI:10.1080/02640414.2017.1300313


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[PMID]:28455786
[Au] Autor:O'Connor KL; Peeters T; Szymanski S; Broglio SP
[Ad] Endereço:NeuroTrauma Research Laboratory, University of Michigan School of Kinesiology, Ann Arbor, MI, USA. kloconn@umich.edu.
[Ti] Título:Individual Impact Magnitude vs. Cumulative Magnitude for Estimating Concussion Odds.
[So] Source:Ann Biomed Eng;45(8):1985-1992, 2017 08.
[Is] ISSN:1573-9686
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Helmeted impact devices have allowed researchers to investigate the biomechanics of head impacts in vivo. While increased impact magnitude has been associated with greater concussion risk, a definitive concussive threshold has not been established. It is likely that concussion risk is not determined by a single impact itself, but a host of predisposing factors. These factors may include genetics, fatigue, and/or prior head impact exposure. The objective of the current paper is to investigate the association between cumulative head impact magnitude and concussion risk. It is hypothesized that increased cumulative magnitudes will be associated with greater concussion risk. This retrospective analysis included participants that were recruited from regional high-schools in Illinois and Michigan from 2007 to 2014 as part of an ongoing study on concussion biomechanics. Across seven seasons, 185 high school football athletes were instrumented with the Head Impact Telemetry system. Out of 185 athletes, 31 (17%) sustained a concussion, with two athletes sustaining two concussions over the study period, yielding 33 concussive events. The system recorded 78,204 impacts for all concussed players. Linear acceleration, rotational acceleration, and head impact telemetry severity profile (HITsp) magnitudes were summed within five timeframes: the day of injury, three days prior to injury, seven days prior to injury, 30 days prior to injury, and prior in-season exposure. Logistic regressions were modeled to explain concussive events based on the singular linear acceleration, rotational acceleration, and HITsp event along with the calculated summations over time. Linear acceleration, rotational acceleration, and HITsp all produced significant models estimating concussion (p < 0.05). The strongest estimators of a concussive impact were the linear acceleration (OR = 1.040, p < 0.05), rotational acceleration (OR = 1.001, p < 0.05), and HITsp (OR = 1.003, p < 0.05) for the singular impact rather than any of the cumulative magnitude calculations. Moreover, no cumulative count measure was significant for linear or rotational acceleration. Results from this investigation support the growing literature indicating cumulative magnitude is not related to concussion likelihood. Cumulative magnitude is a simplistic measure of the total exposure sustained by a player over a given period. However, this measure is limited as it assumes the brain is a static structure unable to undergo self-repair. Future research should consider how biological recovery between impacts may influence concussion risk.
[Mh] Termos MeSH primário: Aceleração
Concussão Encefálica/epidemiologia
Concussão Encefálica/fisiopatologia
Futebol Americano/lesões
Futebol Americano/estatística & dados numéricos
[Mh] Termos MeSH secundário: Traumatismos em Atletas/diagnóstico
Traumatismos em Atletas/epidemiologia
Traumatismos em Atletas/fisiopatologia
Concussão Encefálica/diagnóstico
Seres Humanos
Masculino
Michigan/epidemiologia
Razão de Chances
Prevalência
Prognóstico
Reprodutibilidade dos Testes
Medição de Risco/métodos
Sensibilidade e Especificidade
Estresse Mecânico
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170430
[St] Status:MEDLINE
[do] DOI:10.1007/s10439-017-1843-3


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[PMID]:28742910
[Au] Autor:Mez J; Daneshvar DH; Kiernan PT; Abdolmohammadi B; Alvarez VE; Huber BR; Alosco ML; Solomon TM; Nowinski CJ; McHale L; Cormier KA; Kubilus CA; Martin BM; Murphy L; Baugh CM; Montenigro PH; Chaisson CE; Tripodis Y; Kowall NW; Weuve J; McClean MD; Cantu RC; Goldstein LE; Katz DI; Stern RA; Stein TD; McKee AC
[Ad] Endereço:Boston University Alzheimer's Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts2Department of Neurology, Boston University School of Medicine, Boston, Massachusetts.
[Ti] Título:Clinicopathological Evaluation of Chronic Traumatic Encephalopathy in Players of American Football.
[So] Source:JAMA;318(4):360-370, 2017 07 25.
[Is] ISSN:1538-3598
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Importance: Players of American football may be at increased risk of long-term neurological conditions, particularly chronic traumatic encephalopathy (CTE). Objective: To determine the neuropathological and clinical features of deceased football players with CTE. Design, Setting, and Participants: Case series of 202 football players whose brains were donated for research. Neuropathological evaluations and retrospective telephone clinical assessments (including head trauma history) with informants were performed blinded. Online questionnaires ascertained athletic and military history. Exposures: Participation in American football at any level of play. Main Outcomes and Measures: Neuropathological diagnoses of neurodegenerative diseases, including CTE, based on defined diagnostic criteria; CTE neuropathological severity (stages I to IV or dichotomized into mild [stages I and II] and severe [stages III and IV]); informant-reported athletic history and, for players who died in 2014 or later, clinical presentation, including behavior, mood, and cognitive symptoms and dementia. Results: Among 202 deceased former football players (median age at death, 66 years [interquartile range, 47-76 years]), CTE was neuropathologically diagnosed in 177 players (87%; median age at death, 67 years [interquartile range, 52-77 years]; mean years of football participation, 15.1 [SD, 5.2]), including 0 of 2 pre-high school, 3 of 14 high school (21%), 48 of 53 college (91%), 9 of 14 semiprofessional (64%), 7 of 8 Canadian Football League (88%), and 110 of 111 National Football League (99%) players. Neuropathological severity of CTE was distributed across the highest level of play, with all 3 former high school players having mild pathology and the majority of former college (27 [56%]), semiprofessional (5 [56%]), and professional (101 [86%]) players having severe pathology. Among 27 participants with mild CTE pathology, 26 (96%) had behavioral or mood symptoms or both, 23 (85%) had cognitive symptoms, and 9 (33%) had signs of dementia. Among 84 participants with severe CTE pathology, 75 (89%) had behavioral or mood symptoms or both, 80 (95%) had cognitive symptoms, and 71 (85%) had signs of dementia. Conclusions and Relevance: In a convenience sample of deceased football players who donated their brains for research, a high proportion had neuropathological evidence of CTE, suggesting that CTE may be related to prior participation in football.
[Mh] Termos MeSH primário: Traumatismos em Atletas/patologia
Encéfalo/patologia
Encefalopatia Traumática Crônica/patologia
Futebol Americano/lesões
[Mh] Termos MeSH secundário: Adulto
Idoso
Atletas
Traumatismos em Atletas/complicações
Concussão Encefálica/epidemiologia
Causas de Morte
Encefalopatia Traumática Crônica/diagnóstico
Encefalopatia Traumática Crônica/etiologia
Transtornos Cognitivos/etiologia
Seres Humanos
Masculino
Transtornos Mentais/etiologia
Meia-Idade
Índice de Gravidade de Doença
Transtornos Relacionados ao Uso de Substâncias/etiologia
Estados Unidos
Proteínas tau/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (tau Proteins)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:180213
[Lr] Data última revisão:
180213
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170726
[St] Status:MEDLINE
[do] DOI:10.1001/jama.2017.8334



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