Marcos Vaz de Lima

An Epidemiological Profile of CrossFit Athletes in Brazil

Background: CrossFit is a conditioning and training program that has been gaining recognition and interest among the physically active population. Approximately 440 certified and registered CrossFit fitness centers and gyms exist in Brazil, with approximately 40,000 athletes. To date, there have been no epidemiological studies about the CrossFit athlete in Brazil. Purpose: To evaluate the profile, sports history, training routine, and presence of injuries among athletes of CrossFit. Study Design: Descriptive epidemiological study. Methods: This cross-sectional study was based on a questionnaire administered to CrossFit athletes from various specialized fitness centers in Brazil. Data were collected from May 2015 to July 2015 through an electronic questionnaire that included demographic data, level of sedentary lifestyle at work, sports training history prior to starting CrossFit, current sports activities, professional monitoring, and whether the participants experienced any injuries while practicing CrossFit. Results: A total of 622 questionnaires were received, including 566 (243 women [42.9%] and 323 men [57.1%]) that were completely filled out and met the inclusion criteria and 9% that were incompletely filled out. Overall, 176 individuals (31.0%) mentioned having experienced some type of injury while practicing CrossFit. We found no significant difference in injury incidence rates regarding demographic data. There was no significant difference regarding previous sports activities because individuals who did not practice prior physical activity showed very similar injury rates to those who practiced at any level. Conclusion: CrossFit injury rates are comparable to those of other recreational or competitive sports, and the injuries show a profile similar to weight lifting, power lifting, weight training, Olympic gymnastics, and running, which have an injury incidence rate nearly half that of soccer.

Difference in articular degeneration depending on type of sport

Objective  To determine whether type-II collagen degradation is determined by the type of sport. Carboxy-terminal telepoptide of type-II collagen (CTX-II), a serum biomarker of collagen degradation, was measured in athletes who play different sports, and was compared with matched controls. Methods  The sample size consisted of 70 female participants aged between 18 and 25 years, 15 of whom were members of a soccer team, 10 of a futsal (a variant of association football played on a hard court) team, 10 of a handball team, 18 of a volleyball team, and 7 of a swimming team. A total of 9 age- and sex-matched individuals with sedentary lifestyles were included in the control group. 3-mL blood samples were collected from each participant, and they were analyzed using an enzyme-linked immunosorbent assay (ELISA). Results  A comparison of the CTX-II concentrations of the players of different sports with those of the control group resulted in the following p -values: volleyball ( p  = 0.21); soccer ( p  = 0.91); handball ( p  = 0.13); futsal ( p  = 0.02); and swimming ( p  = 0.0015). Therefore, in the investigated population, futsal represented the highest risk for type-II collagen degradation and, consequently, for articular cartilage degradation, whereas swimming was a protective factor for the articular cartilage. No statistically significant difference was found in the body mass index among the groups. Conclusion   Futsal players are exposed to greater articular degradation, while swimmers exhibited less cartilage degradation compared with the control group in the study population, suggesting that strengthening the periarticular muscles and aerobic exercise in low-load environments has a positive effect on the articular cartilage.

RETORNO AO ESPORTE APÓS ARTROPLASTIA TOTAL DO JOELHO: REVISÃO SISTEMÁTICA

Esta revision sistematica tuvo como objetivo analizar las variables que intervienen en el retorno a las actividades deportivas en los pacientes sometidos a artroplastia total de rodilla (ATR), comprobar el tipo recomendado de deporte, el tiempo para volver al deporte, la satisfaccion del paciente y el nivel la actividad fisica despues de la cirugia. Estudios relacionados con la practica de la actividad fisica y deportiva despues de la ATR fueron seleccionados por dos revisores independientes. Once estudios (10 transversales retrospectivos y 1 caso control) fueron incluidos. La mayoria de los pacientes que participaron en alguna actividad fisica regular antes de la ATR regreso al deporte despues de la cirugia, siendo mas comunes los deportes de bajo impacto, como la caminata, deportes acuaticos, golf, bicicleta estatica, entre otros. Fue posible observar que el nivel de actividad fisica no depende del dolor ni de los sintomas postoperatorios, sino de la satisfaccion con la cirugia, motivacion y capacidad funcional de los individuos. El tiempo para volver al deporte vario de seis a 18 meses despues de la ATR. Aunque algunos estudios muestran que los cirujanos no recomiendan la practica de deportes de alto impacto despues de la cirugia, algunos estudios mostraron buenos resultados, desde que sean considerados el nivel de actividad previo a la cirugia, la poblacion adecuada y la expectativa del paciente en el postoperatorio. Por lo tanto, se concluye que el retorno al deporte despues de la ATR no solo es posible, como se recomienda en los niveles de recreo, y un paciente colaborador, bien informado y adecuadamente entrenado puede mejorar la aptitud tanto a nivel funcional y cardiovascular como psicologico, con aumento de la autoestima y calidad de vida. Tambien existe la necesidad de mas estudios de buena calidad metodologica como ensayos clinicos aleatorios sobre los efectos (beneficios y danos) de deportes de alto impacto para los pacientes sometidos a ATR.

Analysis on the serum levels of the biomarker CTX-II in professional indoor soccer players over the course of one season

Objective The aim of this study was to analyze the blood serum levels of CTX-II in professional indoor soccer players, at three different times during one season: at the start of the pre-season, four months later (a time that marks the middle of the season) and at the end of the season. Methods Fourteen male soccer players of mean age 19 years were included. Blood samples of 3 mL were collected from each individual. The samples were analyzed by means of Elisa tests. Results There was a significant increase in the serum level of CTX-II in the indoor soccer players, from the beginning to the end of the season (p < 0.01). Conclusion These data suggest that joint degradation had occurred in these soccer players, by the end of this period. It is evident that further studies are needed, with methodological rigor, so as to make an effective contribution toward precise elucidation of the etiology of this osteoarthritis and its relationship with the biomarkers, as a tool for early diagnosis.

Roentgenographic Evaluation of the Spine in Patients With Osteogenesis Imperfecta.

AbstractOsteogenesis imperfecta (OI) is a hereditary connective tissue disorder that leads to bone weakness and deformities, especially in the spine, which can lead to poor outcomes.The aim of this study was to find patterns and risk factors in spinal deformities in patients with OI.In a retrospective study, 70 patients with OI were selected. Radiographs of the spine were evaluated. We observed the presence or absence of the following changes: biconcave vertebrae, chest and vertebral deformities, unilateral rib, and thoracolumbar kyphosis. The greater curve was considered the primary one, and the secondary curve considered compensatory.In the study sample, we observed that the patients’ ages ranged between 7 and 50 years, with a mean equal to 13 years, and 76% had scoliosis. In 68% of cases the main curve in the thoracic region was observed with the convexity to the right.The following was found in patients with OI: scoliosis, biconcave vertebrae, vertebral and chest deformity, unilateral rib, and thoracolumbar kyphosis. The thoracolumbar kyphosis is highly associated with thoracic hypokyphosis in patients with OI.

Frequency of spondylolysis and chronic low back pain in young soccer players

Objective: To demonstrate the safety of soccer for adolescents in terms of chronic lesions of the lumbar spine, particularly spondylolysis. Methods: 54 young players underwent a pre-season assessment. The athletes were submitted to radiography of the lumbosacral spine. Players complaining of chronic low back pain were later submitted to more specific tests. Results: only 1 athlete (1.85 % of our sample) had complaints of chronic low back pain. In this case, the radiograph showed olisthesis grade I spondylolysis at the L5 level. Conclusion: Soccer proved to be a very safe sport in terms of the risk of developing chronic lesions of the lumbosacral spine. However, the actual incidence of spondylolysis in these athletes was not determined because only plain radiographs were used in this study.Objetivo: Demostrar la seguridad de la practica de futbol para los adolescentes en relacion con las lesiones lumbares cronicas, especialmente espondilolisis. Metodos: Cincuenta y cuatro jovenes jugadores realizaron la evaluacion de la pretemporada. Los atletas fueron sometidos a una radiografia de la columna lumbosacra. Los jugadores con queja de dolor lumbar cronico se presentarian posteriormente a pruebas mas especificas. Resultados: Solo un atleta tenia quejas de dolor lumbar cronico. En este caso, la radiografia mostro espondilolisis bilateral de L5 con olistesis de grado I (1,85 % de la muestra). Conclusion: El futbol resulto ser un deporte muy seguro para el riesgo de aparicion de lesiones cronicas de la columna lumbosacra. Sin embargo, la incidencia real de espondilolisis en estos atletas no se determino debido a que solo las radiografias simples se utilizaron en este estudio.

Frecuencia de espondilolisis y dolor lumbar crónica en jóvenes futbolistas

Objective: To demonstrate the safety of soccer for adolescents in terms of chronic lesions of the lumbar spine, particularly spondylolysis. Methods: 54 young players underwent a pre-season assessment. The athletes were submitted to radiography of the lumbosacral spine. Players complaining of chronic low back pain were later submitted to more specific tests. Results: only 1 athlete (1.85 % of our sample) had complaints of chronic low back pain. In this case, the radiograph showed olisthesis grade I spondylolysis at the L5 level. Conclusion: Soccer proved to be a very safe sport in terms of the risk of developing chronic lesions of the lumbosacral spine. However, the actual incidence of spondylolysis in these athletes was not determined because only plain radiographs were used in this study.Objetivo: Demostrar la seguridad de la practica de futbol para los adolescentes en relacion con las lesiones lumbares cronicas, especialmente espondilolisis. Metodos: Cincuenta y cuatro jovenes jugadores realizaron la evaluacion de la pretemporada. Los atletas fueron sometidos a una radiografia de la columna lumbosacra. Los jugadores con queja de dolor lumbar cronico se presentarian posteriormente a pruebas mas especificas. Resultados: Solo un atleta tenia quejas de dolor lumbar cronico. En este caso, la radiografia mostro espondilolisis bilateral de L5 con olistesis de grado I (1,85 % de la muestra). Conclusion: El futbol resulto ser un deporte muy seguro para el riesgo de aparicion de lesiones cronicas de la columna lumbosacra. Sin embargo, la incidencia real de espondilolisis en estos atletas no se determino debido a que solo las radiografias simples se utilizaron en este estudio.

Frequência de espondilólise e lombalgia crônica em jovens jogadores de futebol

Objective: To demonstrate the safety of soccer for adolescents in terms of chronic lesions of the lumbar spine, particularly spondylolysis. Methods: 54 young players underwent a pre-season assessment. The athletes were submitted to radiography of the lumbosacral spine. Players complaining of chronic low back pain were later submitted to more specific tests. Results: only 1 athlete (1.85 % of our sample) had complaints of chronic low back pain. In this case, the radiograph showed olisthesis grade I spondylolysis at the L5 level. Conclusion: Soccer proved to be a very safe sport in terms of the risk of developing chronic lesions of the lumbosacral spine. However, the actual incidence of spondylolysis in these athletes was not determined because only plain radiographs were used in this study.Objetivo: Demostrar la seguridad de la practica de futbol para los adolescentes en relacion con las lesiones lumbares cronicas, especialmente espondilolisis. Metodos: Cincuenta y cuatro jovenes jugadores realizaron la evaluacion de la pretemporada. Los atletas fueron sometidos a una radiografia de la columna lumbosacra. Los jugadores con queja de dolor lumbar cronico se presentarian posteriormente a pruebas mas especificas. Resultados: Solo un atleta tenia quejas de dolor lumbar cronico. En este caso, la radiografia mostro espondilolisis bilateral de L5 con olistesis de grado I (1,85 % de la muestra). Conclusion: El futbol resulto ser un deporte muy seguro para el riesgo de aparicion de lesiones cronicas de la columna lumbosacra. Sin embargo, la incidencia real de espondilolisis en estos atletas no se determino debido a que solo las radiografias simples se utilizaron en este estudio.

Lateral pain in an athlete's knee: a rare case of dislocation of the femoral biceps tendon

Dislocation of the femoral biceps tendon is rare and is described clinically in the literature as a lateral pain in the knee. It was initially reported as an anomalous insertion of the long head of the femoral biceps. Subsequently, it was found to be caused by abnormal mobility of the tendon over the prominence of the fibular head at certain angles of knee flexion. The objective of the present report was to describe and discuss a condition of lateral knee pain in a swimmer who started to present subluxation of the femoral biceps during sports practice, which incapacitated him from taking part in trials and competitions. The case is discussed in the light of the literature surveyed; the likelihood that the etiology for the trauma leading to this condition was repetition; and the surgical treatment instituted, which led to excellent results and the patients return to his habitual sports practice.

Dor lateral no joelho do atleta: um raro caso de luxação do tendão do bíceps femoral

Dislocation of the femoral biceps tendon is rare and is described clinically in the literature as a lateral pain in the knee. It was initially reported as an anomalous insertion of the long head of the femoral biceps. Subsequently, it was found to be caused by abnormal mobility of the tendon over the prominence of the fibu lar head at certain angles of knee flexion. The objective of the present report was to describe and discuss a condition of lateral knee pain in a swimmer who started to present subluxation of the femoral biceps during sports practice, which incapacitated him from taking part in trials and competitions. The case is dis cussed in the light of the literature surveyed; the likelihood that the etiology for the trauma leading to this condition was repeti tion; and the surgical treatment instituted, which led to excellent results and the patients return to his habitual sports practice.