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Standardization of a Continuous Ramp Ergometer Protocol for Clinical Exercise Testing in Children.

Jenna M Octavio1,2, Amanda L Folk3, Lauren Falini4

  • 1Nemours Cardiac Center, Nemours/Alfred I. duPont Hospital for Children, P.O. Box 269, Wilmington, DE, 19899, USA.

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|March 6, 2019
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Summary

Developing standardized pediatric exercise protocols is key. This study presents normal values for a continuous cycle ergometer ramp test, achieving 8-10 minutes of exercise for children based on sex and weight.

Keywords:
Bike ergometer normal valuesCardiopulmonary exerciseExercise normal values in childrenNormal pediatric values

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Area of Science:

  • Pediatric Exercise Physiology
  • Cardiopulmonary Testing
  • Clinical Exercise Protocols

Background:

  • Standardizing pediatric exercise laboratory protocols presents significant challenges.
  • Establishing normative data is crucial for accurate interpretation of exercise test results in children.
  • Previous protocols may not adequately account for variations in pediatric populations.

Purpose of the Study:

  • To establish normal pediatric values for a continuous, non-steady state cycle ergometer ramp protocol.
  • To achieve a target exercise duration of 8-10 minutes in pediatric patients.
  • To develop a protocol adaptable to different sexes and weights.

Main Methods:

  • One hundred seventeen pediatric patients (mean age 13 ± 2.8 years, 51% male) with normal cardiac evaluations underwent testing.
  • Four continuous ramp protocols (10, 15, 20, 25 W/min) were used to target a peak workload of 3 W/kg.
  • An algorithm (0.3-0.35 W/kg × weight) guided protocol selection.

Main Results:

  • A majority of the study population achieved the target exercise duration of 8-10 minutes.
  • Exercise duration was influenced by age (older children exercised longer) and sex (males exercised longer).
  • The developed ramp protocols were applicable across different sexes and weights.

Conclusions:

  • Four continuous ramp protocols (10-25 W/min) can be effectively applied to pediatric populations.
  • These protocols facilitate achieving an 8-10 minute exercise duration in children.
  • The findings support the development of standardized pediatric exercise testing protocols.