ELO is the key performance indicator in chess, a global and worldwide measure of chess skills and strength of chess play. Since their invention, ELO-systems are intended to be comparable and unbiased, so that chess players can know their level of play and can compare it among systems and internationally. Moreover, ELO is the defining feature of grandmasters with legal implications. Thus, it is ...

The new type of coronavirus (covid-19) epidemic, which affects the sports world as well all areas life, faces with unpredictable material damage. With Covid-19 outbreak, individuals who have to stay at home in order isolate themselves, acquire activities and hobbies many negativities. Electronic (e-sports) games, offer opportunity a good time home, compete socialize, come first. Based on these ...

The National Leisure Activity Survey(NLAS) classifies leisure activity into eight types: ① viewing culture and art, ② participating in ③ watching sports, ④ ⑤ traveling, ⑥ enjoying hobbies entertainment, ⑦ taking a rest, ⑧ doing social activity. Using this survey data, study examines the effects of time for each type on satisfaction happiness. In particular, by comparing analyzing 2019 data 2021...

This study investigates the relation between leisure activities and the social status of the elderly based on a heterogeneous sample of the Dutch population. Close relationships are also analyzed to identify which people could serve as successful stimulators of leisure participation. The social profile confirms that older people have fewer social contacts and often feel lonely. This study shows...

context groin injuries are among the most common injuries co-existing with sports. the aim of this review was to outline the epidemiology and identify risk factors, as well as examine preventative and interventional measures for reducing the occurrence of this form of injury among athletes. evidence acquisition an electronic, systematic search for relevant keywords, either separately or in comb...

Introduction. This article explores parental perceptions of young children's everyday life information practices related to their hobbies and interests. Method. Thirty-one parents of children between the ages of four and eight years old completed a survey about their children's hobbies and interests. Questions were related to the nature of the children's activities and the ways in which childre...