頸部牽引是中西醫復健常使用於頸椎疾病患者的治療方法，對於有心血管疾病患者而言是高危險性的治療方式，但目前較少對牽引產生的血壓變化及自律神經調節進行研究，本研究目的在探討正常年輕女性在10%、20%、30%體重的牽引重量下，頸部牽引進行前、中與後的血壓與自律神經活性變化。共召募30位健康女性自願者並進行隨機分組，但C組中1名受測者不適中途停止，分組結果爲A組（n=10，牽引重量：10%體重）、B組（n=10，牽引重量：20%體重）及C組（n=9，牽引重量：30%體重），使用肢導心電圖及血壓計測量心跳、血壓值、心律變異度及自律神經功能評估，經時域分析的正常R-R間距標凖差爲心律變異度指標，以頻域分析高頻、低頻及低頻／高頻比值來評估自律神經活性。受測者坐姿下進行20分鐘持續性頸部牽引，牽引前中後共進行第三次測試。統計方法是將採ANOVA檢定，分析三組間所有參數在牽引前後差異值，並hoc test分析比較三組牽引前後各變數的差異值。結果發現C組在牽引中，收縮壓和舒張壓上升、心跳減緩、心律變異度下降及高頻上升有明顯的差異(p<0.05)。因此，30%體重的頸部牽引重量會產生血壓上升，女性的健康者有偏向以迷走神經活性來調節血壓的上升，但是在中西醫臨床復健使用上，對於心血管疾病患者則需謹慎使用。

The cervical traction is often used for patients with cervical disease, but it is high-risk treatment for them with cardiovascular disease. The purpose of this study was to investigate the normal young women in 10%, 20%, and 30% body weight (BW) of cervical traction and to observe the autonomic nervous activity and blood pressure changes. Twenty-nine healthy female volunteers (age: 20.58±1.58 years. weigh: 48.54±5.86 kg) were divided into A group (n=10, traction weight: 10% BW), B group (n=10, traction weight: 20% BW) and C group (n=9, traction weight: 30% BW). Heart rate (HR) and blood pressure (BP) were measured by manometer: The hand-held electrocardiogram (ECG) was used to measure ECG signals that were analyzed by signal processing. In time domain analysis, the standard deviation of normal-to-normal intervals (SDNN) indicated heart rate variability (HRV). In frequency domain analysis, high frequency (HF), low frequency (LF) and LF/HF ratio meant the autonomic nervous activity and balance. Volunteers were administered for 20-minute neck traction, and all parameters were measured before and after traction. The result was showed that systolic and diastolic BP. and HF were increased (p<0.05), but HR and HRV were decreased (p<0.05) in C group during the traction. We found that 30% BW of cervical traction was adventurous dosage and suggested to be careful in clinical treatment for in particular the patients with cardiovascular disease.