The present study summarises the work developed by the ALPHA (Assessing Levels of
Physical Activity) study and describes the procedures followed to select the tests included in …

The objective of this systematic review was to comprehensively study the criterion-related
validity of the existing field-based fitness tests used in children and adolescents. The studies …

Objective To develop sex-specific and age-specific international norms for the 20 m shuttle
run test (20mSRT) in children and youth (aged 9–17 years), and to estimate the prevalence …

The aims of this study were: to compare energy expenditure (EE) estimated from the existing
GT3X accelerometer equations and EE measured with indirect calorimetry; to define new …

Objective To report sex-and age-specific physical fitness levels in European adolescents.
Methods A sample of 3428 adolescents (1845 girls) aged 12.5–17.49 years from 10 …

Objective This systematic review aimed to summarize research that assessed the
associations between 20 m shuttle run test (20mSRT) performance and indicators of …

Background We examined:(i) the usefulness of the International Fitness Scale (IFIS) to
correctly rank adolescents into physical fitness levels;(ii) the capacity of the IFIS for …

The measurement of cardiorespiratory fitness (CRF) provides a feasible way to study the link
between physical activity and health among children and youth at the population level. The …

OBJECTIVE: To examine the association of participation in physical sports activity during
leisure time, sedentary behaviors, cardiorespiratory and muscular fitness, and weight status …

En el presente estudio describe el trabajo desarrollado para la creación de la batería
ALPHA-Fitness de test de campo para la evaluación de la condición física relacionada con …