Study of relationship between respiratory muscle activity and assessment for respiratory muscle function in pulmonary rehabilitation

呼吸肌力的测定对慢性呼吸系统疾病和神经肌肉疾病患者的肺功能康复具有重要的临床意义。在这项研究中，我们测量了鼻呼气压和呼气肌（腹横肌：TA）和上气道肌肉（颏舌肌：GG）的EMG活动，使用细线电极在反向吸气，一个类似于“擤鼻子”的动作。反嗅时TA和GG肌电活动随鼻呼气压的逐步增加而显著增加，说明反嗅时鼻呼气压与呼气肌的活动相对应，反嗅时鼻呼气压与呼气肌的活动相对应，反嗅时鼻呼气压与呼气肌的活动相对应，反嗅时鼻呼气压与呼气肌的活动相对应，反嗅时鼻呼气压与呼气肌的活动相对应。此外，上气道肌肉（GG）有助于产生R-SNEP。

The evaluation of respiratory muscle strength is of clinical importance for pulmonary rehabilitation in the patient with chronic respiratory disease and neuromusclar disease. In this study, we measured nasal expiratory pressure and expiratory muscle (transversus abdominis muscle : TA) and upper airway muscle (genioglossus : GG) EMG activities using fine wire electrodes during reverse sniff, a maneuver akin to "blowing your nose". TA and GG EMG activities increased with stepwise increments in nasal expiratory pressure during reverse sniff (R-SNEP) significantly.We conclude that R-SNEP corresponds to the activity of the expiratory muscle and that this simple maneuver is useful for assessment of expiratory muscle strength. Also, upper airway muscle (GG) contributes for producing R-SNEP.