摘要
長途自由車競賽可導致選手的腕部尺神經病變造成尺神經支配的手部肌肉無力、萎縮、或併有感覺異常。本研究是以14位中華民國亞運自由車儲訓選手為對象、探討他們尺神經病變之型態，發生率、及嚴重度。每位選手的均接受問卷調查、雙手肌力測試、及詳細尺神經傳導及針極肌電圖檢查。結果發現在14位選手中，共有9位肌電檢查有輕度尺神經病變：分別為腕部尺神經病變5位 及肘溝症候群5位（其中一位為二者合併）。經肌電診斷檢查為異常之選手與結果正常選手之肌力比較，並無顯著差別。9位經診斷有尺神經病變的選手中，只有3位敘述有典型尺神經病變的症狀。以上結果顯示我國自由選手的尺神經病變發生率相當高（9/14），同時包括文獻中未提及的肘溝症候群。這種輕度尺神經病變可以肌電檢查早期診斷，以便及早治療。
並列摘要
Long-distance cycling may result in ulnar neuropaty due to ulnar nerve compression adjacent to the ulnar tunnel (of Guyon). The purpose of this study is to determine the type. incidence, and severity of ulnar neuropathy in cyclists. Forteen Asian Games cyclists completed a questionnaire and underwent hand grip strength test and electrodiagnostic studies of the ulnar nerves. According to the results of the electrodiagnostic studies there were 9 cyclists have mild ulnar neuropathy which included ulnar neuropathy adjacent to the ulnar tunnel (5 cases) and the cubital tunnel syndrome (5 cases). One of the 9 cylists had both types of ulnar neuropathy. There were no correlation between the training intensity, cycling duration. and severity of hand symptoms and the findings of electrodiagnostic studies. The hand grip strength of the cyclists with normal and abnormal electrodiagnostic studies was statistically no difference. Of the 9 cyclists with ulnar neuropathy, only 3 of them had typical hand symptoms of ulnar nerve distribution. These results revealed high in cidence of ulnar neuropathy in our Asian Games cyclists. The electrodiagnostic studies can detect early ulnar neuropathy in cubit3 tunnel symdrome. though not mentioned before, should be kept in differential diagnosis of ulnar neuropathy in cyclists. The cyclists even when the hand symptoms are not prominent.