Figure 6 —

Enhancing the value of CPET. Shown here is a schematic of the type of data derived from progressive exercise in children and adolescents. Traditional CPET relies on maximal or peak values. We propose to better capture dynamic relationships of breath-by-breath data during submaximal phases of progressive CPET and transform how we measure the physiologic response to acute exercise. CPET indicates cardiopulmonary exercise testing; WR, work rate; HR, heart rate; ˙VO2, oxygen uptake; ˙VO2max, maximal ˙VO2 uptake.