The purpose of this study was to evaluate the validity and interrater reliability of the Observational System for Recording Activity in Children: Youth Sports (OSRAC:YS). Children (N = 29) participating in a parks and recreation soccer program were observed during regularly scheduled practices. Physical activity (PA) intensity and contextual factors were recorded by momentary time-sampling proc...

background: the high prevalence and potential side effects of anabolic-androgenic steroids (aas) misuse by athletes has made it a major public health concern. epidemiological studies on the abuse of such drugs are mandatory for developing effective preventive drug control programs in sports community. this study aimed to investigate the prevalence of aas abuse and their association with some ps...

Cross-country skiing has always been one of the most popular winter sports in Scandinavia (Eriksson, 1976). Although downhill skiing has become more and more popular during the last ten years, cross-country skiing is still the most important mass sport in Finland. The number of competitive skiers has been increasing owing to the fact that the younger age groups as well as the veteran series hav...

The popularity of skiing and snowboarding has increased tremendously over the past few decades. Whereas skiing has been an established winter sport for some time, snowboarding was created only in the 1960s. The great surge in popularity of snowboarding was sparked by its inclusion in the 1998 Winter Olympics. With increased participation in these winter activities has come a tremendous rise in ...

We use the China General Social Survey (2005) and the Home Office Citizenship Survey (2005) to study civic engagement and neighbourhood trust in China and Britain in this paper. We focus on class differences in participation in sports/recreation, religion, children's/adult education and public-welfare activities, and trust in the neighbours. We find higher levels of civic involvement in Britain...

BACKGROUND Understanding how built environment characteristics influence recreational walking is of the utmost importance to develop population-level strategies to increase levels of physical activity in a sustainable manner. PURPOSE This study analyzes the residential and non-residential environmental correlates of recreational walking, using precisely geocoded activity space data. METHODS...