The effectiveness of the sentence recognition in body conductions was examined. In a pretest session, reception experiments took place in order to investigate if body conductions are actually effective for recognition systems. We investigated the difference between word-recognition rate and sentence-recognition rate. In the next part, we compared word-recognition rate with sentence-recognition rate with recognition systems which are on the market. In addition, we investigated the effect of recognition in females. Generally, female production signals are not easily perceived by detectors as females are relatively vulnerable to sentence-recognition. As a result, it was confirmed that the body conductions were effective for sentence-recognitions as well as word-recognitions.