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Updated: Jun 17, 2026

Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients
Published on: April 12, 2011
A framework for diagnosing and classifying intensive care unit-acquired weakness
Robert D Stevens1, Scott A Marshall, David R Cornblath
1Division of Neurosciences Critical Care, Department of Anesthesiology Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA. rstevens@jhmi.edu
Abstract:
Neuromuscular dysfunction is prevalent in critically ill patients, is associated with worse short-term outcomes, and is a determinant of long-term disability in intensive care unit survivors. Diagnosis is made with the help of clinical, electrophysiological, and morphological observations; however, the lack of a consistent nomenclature remains a barrier to research. We propose a simple framework for diagnosing and classifying neuromuscular disorders acquired in critical illness.
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