The objective of this systematic review was to examine the relationship between outdoor
time and:(1) physical activity,(2) cardiorespiratory fitness,(3) musculoskeletal fitness,(4) …

ABSTRACT SALLIS, JF, JJ PROCHASKA, and WC TAYLOR. A review of correlates of
physical activity of children and adolescents. Med. Sci. Sports Exerc., Vol. 32, No. 5, pp. 963 …

Screen time and physical activity behaviours develop during the crucial early childhood
period (0–5 years) and impact multiple health and developmental outcomes, including …

This review examines evidence of the association between the neighborhood built
environment, green spaces and outdoor home area, and early (0–7 years) child health and …

What type, amount, and intensity of physical activity is good for your health? How much
exercise is too much? Can avoiding physical activity make you ill or lead to premature …

OBJECTIVES: This study reviewed previous studies to explore the effect of season, and
consequently weather, on levels of physical activity. STUDY DESIGN AND METHODS: Thirty …

Background: Because most adults in industrialized countries do not meet physical activity
guidelines, population-wide interventions are needed. Environmental and policy …

Background Many youth today are physically inactive. Recent attention linking the physical
or built environment to physical activity in adults suggests an investigation into the …

We have observed that the nature and amount of free play in young children has changed.
Our purpose in this article is to demonstrate why play, and particularly active, unstructured …

Obesogenic environments are thought to underlie the increased obesity prevalence
observed in youth during the past decades. Understanding the environmental factors that …