Nyland, Harald, Næss, Halvor, Nyland, Morten · Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke · 2015 · DOI
This study examined how different body functions are affected in people with ME/CFS by mapping their characteristics across a group of patients. The research looked at various functional areas to better understand the pattern of symptoms and impairments experienced by those with the condition. This type of mapping helps clinicians and researchers see which functions are most commonly affected and how they relate to each other.
Functional mapping studies are important for ME/CFS because they help establish a comprehensive picture of how the disease affects patients' daily lives across multiple dimensions. This type of characterization supports better recognition of ME/CFS in clinical practice and provides a foundation for understanding heterogeneity within the patient population.
This study does not establish cause-and-effect relationships or identify why these functional impairments occur. The cross-sectional design means it cannot determine whether functional changes progress over time or how they evolve. Without control groups, it cannot definitively show which impairments are unique to ME/CFS versus other conditions.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
Spotted an error in this entry? Report it →