Engagement in different sport disciplines during university years and risk of locomotive syndrome in older age: J-Fit

BACKGROUND@#Among former Olympic-level athletes, engagement in different sport disciplines has been associated with mortality risk in subsequent years. However, limited evidence is available on whether engagement in different sport disciplines at a young age is associated with locomotive syndrome (LS) risk later in life. This study examined the relationship between engagement in different sport disciplines during university years and LS risk in older age among former university athletes.@*METHODS@#Participants were 274 middle-aged and 294 older men alumni who graduated from a school of physical education in Japan. LS risk was defined as answering "yes" to any of the Loco-check questions. Data on university sports club membership were collected using questionnaires. University clubs were classified into three groups of cardiovascular intensity (low, moderate, high), following the classification system of sport disciplines by the American College of Cardiology. This classification considers the static and dynamic components of an activity, which correspond to the estimated percent of maximal voluntary contraction reached and maximal oxygen uptake achieved, respectively. University clubs were grouped based on the risk of bodily collision (no, yes) and extent of physical contact (low, moderate, high). Relationships between engagement in different sport disciplines and LS risk were analyzed using Cox proportional hazards models, and adjusted for age, height, weight, joint disease, habitual exercise, and smoking and drinking status.@*RESULTS@#Adjusted hazard ratios and 95% confidence intervals associated with the low, moderate, and high cardiovascular intensity sports were 1.00 (reference), 0.48 (0.22-1.06, P = 0.070), and 0.44 (0.20-0.97, P = 0.042) in older men, respectively; however, there was no significant association between these parameters among middle-aged men. Engagement in sports associated with physical contact and collision did not affect LS risk in either group.@*CONCLUSIONS@#Engagement in sports associated with high cardiovascular intensity during university years may reduce the risk of LS in later life. Encouraging young people to participate in such activities might help reduce LS prevalence among older populations.

Relación entre la flexibilidad de los isquiotibiales y la fuerza del soleo con el salto y la velocidad en jugadores de ultimate frisbee / Relationship between the flexibility of the hamstring and the strength of soleus muscle with jump and speed in ultimate frisbee players / Relação entre a flexibilidade dos isquiotibiais, a força do sóleo com o salto e a velocidade emjogadores de ultimate frisbee

Problema: la reducción de la flexibilidad de los isquiotibiales es común en adolescentes, asociándose con dolor lumbar, hernia de disco y riesgo de lesiones musculares. El ultimate frisbee implica aceleraciones y desaceleraciones en cortas distancias. Los antecedentes reportan lesiones en miembros inferiores, sin correlacionarlas con patrones de movimiento como fuerza, velocidad o salto. Objetivo: determinar la relación entre la flexibilidad de los isquiotibiales y la fuerza del soleo, con el salto y la velocidad en jugadores de ultimate frisbee. Método: estudio descriptivo, correlacional, con 103 deportistas universitarios de Medellín, Colombia. La información se recolectó mediante encuesta y observación. Se evaluó la flexibilidad, la velocidad y el salto. Los datos se analizaron con SPSS, versión 24.0. Resultados: la flexibilidad de los isquiotibiales se correlacionó positivamente con la velocidad, pero inversamente con el salto. Conclusión: a mayor flexibilidad de los isquiotibiales, mayor desarrollo de velocidad, pero menor capacidad de salto.

Problem: Reduction of hamstring flexibility is common in adolescents, associating with low back pain, disc herniation, andrisk of muscle injuries. Ultimate frisbee implies accelerations and decelerations over short distances. The background reports injuries in thelower limbs, without correlating them with movement patterns such as strength, speed or jump. Objective: To determine the relationship between hamstring flexibility and the strength ofthe soleus muscle with jump and speed in ultimate frisbee players. Method: Descriptive and correlational study, with 103 university athletes from Medellin, Colombia. Information wascollected through survey and observation. Flexibility, speed and jump were evaluated. Data were analyzed with SPSS® version 24.0. Results: Hamstring flexibility was positively correlated with speed, but inversely with jump. Conclusion: A greater flexibility of the hamstrings, greater speed development, but lessjumping ability.

Problema: a redução da flexibilidade dos isquiotibiais é um quadro clínico comum emadolescentes, esta redução foi reportada como um fator associado à prevalência de dor lombar, hérnia de disco e alto risco de lesões musculares. O ultimatefrisbee combina padrões de movimento similares ao futebol e ao handebol, onde se realizam cortes, arremessos, saltos, velocidade, voos e aceleração ­desaceleração em curtas distâncias. Os antecedentes encontrados nesse esporte reportam índices de lesões em membros inferiores, mas não se constataramcorrelações entre padrões de movimento específico com o salto, a força e a velocidade. Objetivo: determinar a relação da flexibilidade dos isquiotibiais, a força do sóleo com o salto e avelocidade em jogadores de ultimate frisbee. Método: realizou-se um estudo descritivo com alcance correlacional e amostra de conveniência de 103 jogadoresuniversitários de ultimate frisbee da cidade de Medellin-Colômbia. Os esportistas cumpriram os critérios de inclusão e assinaram o consentimentoinformado. No que se refere às técnicas de coleta de informação, utilizou-se a pesquisa de opinião e a observação. Avaliou-se a flexibilidade, a velocidade eo salto. Os dados se analisaram com o programa estadístico SPSS versão 24.0. Realizou-se uma análise uni-variada de estadística descritiva, que confirmou asfrequências absolutas e relativas. Além disso, determinou-se a distribuição da normalidade de todas as variáveis através do teste Kolmogorov-Smirnov, queassinalou normalidade para as variáveis com um valor < 0,05. Resultados: estabeleceu-se que a flexibilidade dos isquiotibiais tem correlação positivacom a velocidade, mas inversa com o salto. Conclusão: quanto maior a flexibilidade dos isquiotibiais, maior o desenvolvimento da velocidade, porémmenor a capacidade de salto.