Physiological differences in cardiopulmonary exercise testing between children and adults

This study identifies clear physiological differences in submaximal CPET parameters between children and adults. It adds novel insight by including both ventilatory thresholds and oxygen uptake efficiency, adjusted for body mass and training status. The findings suggest children rely more on oxidative metabolism, emphasizing the importance of maturation on exercise efficiency and informing age- and sex-specific assessment protocols in pediatric exercise physiology.