Activity and Exercise

The relationship between activity, exercise, and ME/CFS is widely misunderstood. This section provides evidence-based guidance.

1 Critical Warning: GET is Contraindicated

WarningPractical Warning: Graded Exercise Therapy Causes Harm in ME/CFS

Graded Exercise Therapy (GET)—structured programs of progressively increasing exercise—is contraindicated in ME/CFS. This applies to children as well as adults, with potentially greater harm in developing patients.

Evidence of harm:

  • Patient surveys consistently report GET as one of the treatments most likely to cause deterioration
  • The PACE trial, which promoted GET, has been discredited following independent reanalysis revealing methodological flaws and inflated claims (Rowe et al. 2017)
  • NICE guidelines (UK) no longer recommend GET for ME/CFS
  • CDC guidance no longer promotes GET

Why GET harms ME/CFS patients:

  • ME/CFS involves exercise intolerance as a core feature—the abnormal response to exertion IS the disease
  • Progressive exercise triggers the post-exertional malaise mechanism, causing symptom worsening
  • Repeated PEM episodes may cause cumulative damage and disease progression
  • GET assumes deconditioning is the problem; in ME/CFS, the problem is abnormal energy metabolism and exercise response

Why pediatric harm may be greater:

  • Children are less able to advocate against inappropriate treatment
  • School PE requirements may enforce harmful exercise
  • Parents and teachers may pressure “just exercise more” despite symptoms
  • Developmental period may be more vulnerable to damage from repeated overexertion
  • Better baseline prognosis means more to lose from inappropriate treatment

What to do if GET is recommended:

  • Provide the recommending clinician with current NICE guidelines and CDC guidance
  • Request documentation of the evidence base for GET in pediatric ME/CFS (none exists)
  • Seek second opinion from ME/CFS-knowledgeable provider
  • Document in writing your refusal of GET and the reasons

2 Safe Activity Maintenance

2.1 Establishing Baseline

2.2 Safe Activity Principles

2.3 Signs of Overexertion

2.4 Modified Physical Education

WarningPractical Warning: Graded Exercise Therapy Causes Harm in ME/CFS

Graded Exercise Therapy (GET)—structured programs of progressively increasing exercise—is contraindicated in ME/CFS. This applies to children as well as adults, with potentially greater harm in developing patients.

Evidence of harm:

  • Patient surveys consistently report GET as one of the treatments most likely to cause deterioration
  • The PACE trial, which promoted GET, has been discredited following independent reanalysis revealing methodological flaws and inflated claims (Rowe et al. 2017)
  • NICE guidelines (UK) no longer recommend GET for ME/CFS
  • CDC guidance no longer promotes GET

Why GET harms ME/CFS patients:

  • ME/CFS involves exercise intolerance as a core feature—the abnormal response to exertion IS the disease
  • Progressive exercise triggers the post-exertional malaise mechanism, causing symptom worsening
  • Repeated PEM episodes may cause cumulative damage and disease progression
  • GET assumes deconditioning is the problem; in ME/CFS, the problem is abnormal energy metabolism and exercise response

Why pediatric harm may be greater:

  • Children are less able to advocate against inappropriate treatment
  • School PE requirements may enforce harmful exercise
  • Parents and teachers may pressure “just exercise more” despite symptoms
  • Developmental period may be more vulnerable to damage from repeated overexertion
  • Better baseline prognosis means more to lose from inappropriate treatment

What to do if GET is recommended:

  • Provide the recommending clinician with current NICE guidelines and CDC guidance
  • Request documentation of the evidence base for GET in pediatric ME/CFS (none exists)
  • Seek second opinion from ME/CFS-knowledgeable provider
  • Document in writing your refusal of GET and the reasons

References

Rowe, Peter C., Rosemary A. Underhill, Kenneth J. Friedman, Alan Gurwitt, Marvin S. Medow, Michael S. Schwartz, Nigel Speight, Julian M. Stewart, Rosamund Vallings, and Katherine S. Rowe. 2017. “Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Diagnosis and Management in Young People: A Primer.” Frontiers in Pediatrics 5: 121. https://doi.org/10.3389/fped.2017.00121.