The association between sibling characteristics and girls’ physical activity levels.
Synopsis
On average, girls are less active than boys and this difference is apparent as early as 1-year-old. Previous research has demonstrated that children's physical activity levels are higher if they have siblings and could be influenced by the sex of their siblings. However, there is limited information that contextualises physical activity, such as time spent playing indoors and outdoors. The aim of this study is to investigate the influence of sibling factors, such as sex and age on the proportion of girls' that meet physical activity guidelines and the time that girls' play indoors and outside.