In this issue of Nutricion Hospitalaria, Ruiz and colleagues present the new health-related fitness test battery for youth based upon the work developed by the ALPHA (Assessing Levels of Physical Activity) study. The ALPHA was a study funded by the European Union aimed to provide a set of instruments for assessing levels of physical activity, its underlying factors (e.g. build environment, transport, and workplace), as well as, fitness in a comparable way within the European Union . The work presented in this issue by Ruiz and colleagues relates to the working package 6 of the ALPHA project -Assessing Healthrelated Physical Fitness- aimed to provide a set of valid, reliable, feasible and safe field-based fitness tests for assessment of health-related physical fitness in children and adolescents to be use in public health monitoring in a comparable way within the European Union
