Pediatric CPET Experimental

Burstein 2021 (CHOP) normative values Not calculated here

Sex-, age- and race-specific reference values for ramp cycle ergometry from the Children's Hospital of Philadelphia exercise laboratory (abstract):

• 1,829 healthy children and adolescents aged 6–18 years (mean 13.6 ± 2.6 years, 52% male), BMI between the 5th and 95th percentiles, structurally normal hearts, tested 1999–2015.
• 28 variables, including peak VO₂, VO₂ at the ventilatory anaerobic threshold, peak work rate, heart rate and blood pressure, resting pulmonary function and ventilatory responses.
• Fractional polynomials in mixed-effects regression, adjusted for race and BMI. After 12 years of age, males generally had higher peak aerobic capacity and work rate.

The article is subscription-only and the model coefficients were not available to this prototype, so no predicted value is calculated. Use the published charts or your laboratory's software.

Other references checked Not calculated here

• LowLands Fitness Registry (Mylius 2019, open access): peak VO₂ for cycle ergometry, ages 7.9–65 years (4,477 subjects, 907 female). Its best model uses a sex-specific smoothing spline for age that is not printed as an equation, so it cannot be reproduced; the study was mostly adults and Dutch.
• Reference values differ by country, ergometer, protocol and the definition of a maximal test. Quote the reference with every percent-predicted value.