Background: This study describes and compares the percentages of Canadian children and
youth who adhere to different operational definitions of the moderate-to-vigorous physical …

Background Variability exists in children's activity patterns due to the association with
environmental, social, demographic, and inter-individual factors. This study described …

Abstract Study Objective: To provide normative sleep data on 9-18 year old Australians.
Design: Cohort study. Setting: Participants' homes. Participants: 4032 Australians aged 9-18 …

OBJECTIVES: To examine the validity of a brief self-report questionnaire for assessing
physical activity, and compliance and non-compliance with moderate-to-vigorous physical …

Este estudio pretende conocer y relacionar los patrones de Actividad Física (AF) y el
cumplimiento de la recomendaciones de práctica de AF saludable con algunos …

With the promotion of physical activity in young people, an established global health priority
[1], it is critically important for governments and public health agencies to have a clear …

Background: Urbanization affects lifestyles in the developing world but no studies have
assessed the impact on objectively measured physical activity in children and adolescents …

Background: The impact of accelerometer-related methodological decisions relating to the
assessment of physical activity and sedentary time has not been conclusively determined in …

We describe the association of screen time in excess of American Academy of Pediatrics
recommendations (≤ 2 h/d) with family television-use policies and regular nonscreen …

Objective There is growing concern that rising rates of electronic media use might be
harmful. However, the extent to which different types of electronic media use might be …