Related Experiment Video

Updated: Nov 18, 2025

The Treadmill Fatigue Test: A Simple, High-throughput Assay of Fatigue-like Behavior for the Mouse
09:25

The Treadmill Fatigue Test: A Simple, High-throughput Assay of Fatigue-like Behavior for the Mouse

Published on: May 31, 2016

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Young and exhausted

Filip Oleksak1, Peter Durdik2, Lubica Jakusova2

  • 1Department of Children and Adolescents, Martin University Hospital, Slovakia. oleksak.filip@gmail.com.

Advances in Respiratory Medicine
|February 9, 2021
PubMed

Insights

Myalgic encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) in children can have surprising origins. Cardiopulmonary exercise testing helped diagnose a previously unrecognized cause in a pediatric patient.

Area of Science:

  • Cardiology
  • Pediatric Medicine
  • Neurology

Background:

  • Myalgic encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is defined by prolonged, severe fatigue.
  • Diagnosing ME/CFS in pediatric patients requires excluding other treatable conditions.
  • Identifying the underlying cause is crucial for effective management.

Observation:

  • A pediatric case presented with symptoms consistent with ME/CFS.
  • Standard diagnostic procedures did not reveal an obvious cause.
  • The patient underwent cardiopulmonary exercise testing.

Findings:

  • Cardiopulmonary exercise testing identified a surprising, previously unrecognized organic origin for the patient's ME/CFS symptoms.
  • This diagnostic approach proved effective in uncovering a treatable condition.

Implications:

  • This case highlights the importance of advanced diagnostic tools like cardiopulmonary exercise testing in pediatric ME/CFS.
  • It suggests that ME/CFS in children may stem from diverse, sometimes unexpected, organic causes.
  • Early and accurate diagnosis through comprehensive testing can lead to timely and appropriate interventions.

Keywords:
cardiopulmonary exercise testingchronic fatigue syndromedysfunctional breathing

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