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. 2019 Apr 1;13(1):110–119. doi: 10.1080/19336950.2019.1600967

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© 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Electrophysiological evaluations of Case 1.

(A) At room temperature (27°C), the CMAP amplitudes increased (+27%) immediately after exercise. Then, the CMAP amplitudes decreased gradually in 20 min-60 min (−27% at most) and started to back to baseline from 90 min. (B) At cold status (11°C), the CMAP amplitudes decreased after exercise immediately, following a continued remarkable decrease after 60min-90min (−87%), and recovered gradually after 90 min. (C) The change of CMAP amplitudes tended to be HyperPP pattern but not reached the abnormal standard (>−33%) in room temperature, and it is PMC pattern in cold temperature. (D) Needle electromyography showed diffuse myotonia discharge in the rest state.