The use of submaximal parameters in the assessment of exercise capacity in children with obesity
Authors' conclusion
Maximal exercise data in children with obesity is frequently unavailable due to failure to achieve maximal effort. Submaximal parameters, such as OUES and VO2@AT, may be useful substitute options for assessing the health and functional level of this population.
Study context
- Population
- Children with and without obesity undergoing treadmill cardiopulmonary exercise testing (CPET); 50.9% females
- Participants
- 153 children
- Exposure
- Children with obesity vs non-obese children
- Obesen = 87
- Non-obesen = 66reference
- Outcome
- Maximal and submaximal exercise parameters (peak VO2, OUES/kg, VO2@AT, CO2-derived parameters)
Methodological detailstreadmill CPET
- Treadmill CPET
Main finding
As reported in the abstract
PeakVO2 (% predicted)
P < 0.0001
Observational data: associations, not effects.
Further findings
Achieved maximal effort
| Outcome | Obese | Non-obese | P value |
|---|---|---|---|
| OUES/kgLower with Obese | 30.5 ± 6.1 | 39.0 ± 9.5 | P < 0.0001 |
| VO2 at ventilatory threshold (VO2@AT)Lower with Obese | 21.2 ± 4.6 | 26.4 ± 5.3 | P = 0.0001 |
CO2-derived submaximal parameters
- No significant differences in the CO2-derived parameters
Original publication
The use of submaximal parameters in the assessment of exercise capacity in children with obesity. Pediatr Obes. Published 6 January 2025. doi:10.
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