RESEARCH Psychometrics of the pres e

Full list of author information is available at the end of the articleBackground Overweight and obesity among children have increased dramatically over the past decades. Latino children appear to be particularly susceptible to obesity even as pre-schoolers [1], and obesity-related metabolic and endocrine diseases as they get older [2]. Regular engagement in physical activity (PA) appears to reduce the risk of obesity among preschool children [3,4] particularly male pre-schoolers [5]. Moreover, PA may track over time in chil-dren [6], suggesting that establishing higher levels of PA in young children might be beneficial. PA for children has been defined as: “bodily movement produced by skeletal muscles that results in energy expenditure, including ac-tive play, active transportation, household chores, sports participation, and exercise ” (page 142) [7] adapted from Caspersen’s definition [8]. Preschool children should ge