Excess of weight, but not underweight, is associated with poor physical fitness in children and adolescents from Castilla-La Mancha, Spain

We estimated the prevalence of underweight, overweight and obesity of children and adolescents from Castilla-La Mancha region (Spain), applying the new International Obesity Task Force (IOTF) 2012 criteria, and analysed differences in physical fitness components in relation to weight status. The sample was 2,330 schoolchildren aged 6–17 years. We measured height and weight, calculated body mass index (BMI) and assessed physical fitness using...