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One‐minute exercise is best for evaluation of postexercise exhaustion in myasthenia gravis
Author(s) -
OH Shin J.,
Nagai Taiichi,
Kizilay Ferah,
Kurt Semiha
Publication year - 2014
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.24178
Subject(s) - myasthenia gravis , medicine , stimulation , rest (music) , physical exercise , repetitive nerve stimulation , moderate exercise , physical therapy , anesthesia
: To find the best exercise duration for postexercise exhaustion by decrement (PEE‐D) in myasthenia gravis (MG). Methods : In 32 tests in 32 MG patients, repetitive nerve stimulation was performed in the abductor digiti quinti muscle. The 3 H z responses for 2 s were obtained with supramaximal stimulation at rest, and immediately after (PE0), 30 s after (PE30s), and 1, 2, 3, and 4 min after 10‐s, 30‐s, and 1‐min exercises. Results : Compared with the decrement at rest, a significantly greater decrement was found at PE2m and PE3m after 30‐s exercise, and at PE2m, PE3m, and PE4m after 1‐min exercise. In 11 patients who showed a decremental response only with exercise, PEE‐D was observed in 5 after 30‐s exercise and in 8 after 1‐min exercise. Conclusions : One‐minute exercise is best for evaluation of PEE‐D in MG. Muscle Nerve 50 : 413–416, 2014

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