The purpose of this study was to examine the presence relative age effect (RAE) in young tennis players. Data from a sample all ranked (n= 3463) and licensed 29150) players consecutive groups (10- 17-year-old) were collected official web page national federation. They assigned four quartiles according month birth: a) Quartile 1 = January-February-March, b) 2 April-May-June, c) 3 July-August-Sep...

Age at diagnosis is a reported prognostic factor in a variety of solid cancers. In hepatocellular carcinomas (HCCs), several previous studies focused on patient age, but demonstrated inconclusive results on prognosis of young patients. Clinical outcome may differ according to the balance between tumor's own biologic behavior and underlying liver function thus explaining the inconclusive results...

  Background :Falls have been strongly associated with decreased physical activity and impaired mobility. Reduced range of motion, as a consequence of muscle stiffness, has been indicated to assume a positive relationship to fall incidence. Also clinical observations suggest that maintaining the normal spinal curves is associated with the prevention of spinal, knee and hip disorders. Thus, the ...

extract   if you are young, old or in midlife your new ages activities have different meaning to past times.   same as the other societies in our society, age is one of the essential dimensions of organizations and social associations. for example our school system is based on the students' ages. student behavior is different of their adult teachers based on the ages. more or less families...

Background and aims: Recent studies on mortality in Iran, in recent years clearly emphasize that unintentional injuries are the main cause of reducing Iranian life expectancy in Iran. This article aimed to assess the role of major causes of death for mortality patterns in the country by sex in 2010. Methods: Experimental results of this study are based on...