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A prática regular de atividade física promove uma série de benefícios que vão além da esfera física. A qualidade de vida, segundo diversas fontes, diz respeito ao grau de satisfação de um indivíduo com os múltiplos aspectos da sua vida. As pessoas portadoras de deficiência física podem apresentar níveis de sedentarismo elevados, influenciando de forma decisiva na percepção de sua qualidade de vida. aBStRaCtThe positive effects of regular physical activity practice are not restricted to physical well being. Quality of life regards the overall sense of well-being of an individual in relation to the multiple aspects of his/her life. People with special needs may present high levels of sedentarism, which has a remarkable influence on their self-perceived quality of life. Therefore, the objective of the present study was to assess the effect of 12 weeks of physical activity practice on the perception of the quality of life of individuals with special needs. 20 male individuals with physical disabilities participated in the study. They were divided into two groups, Sedentary and Active. The instruments used were a questionnaire on demographic data and the World Health Organization Quality of Life (WHOQOL-Brief ). Mean age of the volunteers was 38.1 years, they were single, had not finished elementary school and lived in their own house. Most of them had poliomyelitis. The Active group presented higher scores in all domains of the instrument (physical, psychological, social and environmental). The results obtained in the present study showed that the quality of life of Active people with special needs was better than that of the Sedentary ones. Consequently, we strongly recommend that people with physical disabilities be encouraged to participate in physical and/or sports activity programs regularly.

The organizing committee of the 2016 Rio Olympic Games recently announced that some of the preliminary and final competitions will be held at night. The present article discusses the potential harmful effects of these late-night competitions on sleep, circadian rhythms and athletic performance during the Olympic Games. Specifically, night-time competition could lead to injury and may compromise an athlete's decision-making, attentional, physiological and other processes. Consequently, these impacts could negatively affect the performance of athletes and their teams. Thus, it is suggested that technical commissions take special care when creating strategies to minimize harm to the athletes by considering factors such as light exposure, melatonin intake, sleep hygiene and scheduled naps, and training at local competition time. Furthermore, it is necessary for specialists in chronobiology and sleep to engage with members of the national teams to develop an activity schedule for physical, technical, tactical and psychological preparation that accounts for circadian rhythms, thereby creating the best possible environment for the athletes to achieve their ideal performance.

The relative age of athletes has raised the attention of many researchers. The focus of these investigations understands the interference of this parameter in the identification of talents and the training of future elite athletes. Thus, the aim of this paper was to to evaluate and compare the existence of differences between semesters and birth date quartiles in professional soccer participating in the Brazilian Soccer Championship Series A (1 st division) and B (2 nd division) in 2008. Fourty clubs that participated in the Brazilian Soccer Championship Series A and B were evaluated, totalizing 1022 players (483 players in the 1 st division and 539 players in the 2 nd division). The players were grouped per birth date into year quartiles and semesters. The data showed that there was a preference of clubs from the two championship series for hiring athletes born in the 1 st semester. Further, differences were absent only between quartiles 2 and 3 and a clubs` preference for 1 st quartile athletes was also observed. We can conclude that the relative age stands out as a variable in the elite soccer athlete selection and training, as the comparisons show the clubs` preference for athletes born early in the year.

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