This article includes Supplementary Video, available online at

jws-mds.21040.mpg12960K Segment 1. Clip 1 shows the synkinesias of the cremaster muscles in synchrony with breathing. The cremaster muscles contract during forced expiration. Synchronicity with breathing is documented by making the patient change his breathing rhythm during the film. Segment 2. Clip 2 shows improvement 3 weeks after injection of the toxin. During the clip, the patient is repetitively asked to perform forced in- and expiration maneuvers. The first part of the clip was filmed with the patient lying on an exam couch. The last minute was filmed with the patient standing.

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.