Do your children walk or ride a bicycle to school? If your answer is yes, then they are less likely to be obese than those who travel by car or public transport, suggests a new study.
The study's findings suggested children who actively commuted to school had lower body fat and were less likely to be overweight or obese.
In the study, published in the BMC Public Health journal, the researchers assessed the impact of extra-curricular physical activities - daily commuting to school and participation in sports - on overweight and obesity levels among primary school children.
The researchers observed that physical activity was a better predictor of obesity level in children than commonly used body-mass index (BMI) as it looked at total weight, including "healthy" muscle mass, rather than fat mass alone.
"Both BMI itself and the points at which high BMI is associated with poor health vary with age, sex and ethnicity," said the study's first author Lander Bosch, a Ph.D scholar at University of Cambridge.