Cardiorespiratory fitness (CRF) is a good summative measure of the body's ability to perform
continuous, rhythmic, dynamic, large-muscle group physical activity, and exercise. In …

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 …

Purpose To identify criterion-referenced standards for cardiorespiratory fitness (CRF); to
estimate the percentage of children and youth that met each standard; and to discuss …

Body fat and maturation both influence cardiorespiratory fitness, however few studies have
taken these variables into account when using field tests to predict children's fitness levels …

The aim of this study was to provide normative data for performance on the 20 m shuttle-run
test of cardiorespiratory fitness in English schoolchildren. A total of 7366 10–16 year olds …

The main purpose of the present meta-analysis was to examine the criterion-related validity
of the 20-m shuttle run test for estimating cardiorespiratory fitness. Relevant studies were …

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 …

Methods In this cross-sectional multicenter study, we prospectively recruited 228 healthy
children 12 to 17 yr old in local schools. We performed a symptom-limited cardiopulmonary …

It is widely believed that the performance of children and adolescents on aerobic fitness
tests is declining. To test this hypothesis, this meta-analysis compared the results of 55 …

Objective To estimate international and national temporal trends in the cardiorespiratory
fitness (CRF) of children and adolescents and to examine relationships between temporal …