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Updated: Aug 2, 2026

Non-invasive Assessment of Changes in Corticomotoneuronal Transmission in Humans
Published on: May 24, 2017
Postexercise facilitation of reflexes is not common in Lambert-Eaton myasthenic syndrome
Z Odabasi1, M Demirci, D S Kim
1Department of Neurology, The Veterans Affairs Medical Center, The University of Alabama at Birmingham, 34294, USA.
Abstract:
Postexercise facilitation (PEF) with clinical reflexes, H-reflex, and T-reflexes at the ankle and knee was systematically studied in 16 patients with Lambert-Eaton myasthenic syndrome (LEMS). PEF was observed in ankle and knee deep tendon reflexes in five patients, in H-reflex in three patients, and in T-reflexes in six patients. When all reflex tests were combined, 7 (43.7%) of 16 patients showed PEF by at least one test. The authors conclude that the PEF of reflexes, the most helpful diagnostic clinical marker for LEMS, is not common.
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