森林浴增強人體免疫系統功能，降低血壓，有利於心臟及血管功能及内分泌代謝 指數，降低交感神經活動，增強人體副交感神經活性。本研究目的是利用心脈儀評估短期 溪頭森林浴前後對參與者的心臟和血管功能效益之影響，並進行溪頭柳杉林内臥躺前後差 異比較。研究結果顯示溪頭森林浴前後，受測者的臂動脈舒張壓明顯降低2.5 mmHg (p = 0.0021)、中心動脈收縮壓與舒張壓分別降低4.07 mmHg (p = 0.0253)及2.28 mmHg (p = 0.0068)、及平均動脈壓降低2.68 mmHg (p = 0.0078)。森林浴前後周邊血管阻力降低207.7 dynes-s cm-5，從 1581.3下降至 1373.6 dynes-s cm-5，臂動脈阻力降低38.9 dynes-s cm-5，從 297.0下降至258.1 dynes-s cm-5，顯示森林浴後血管功能變好。相對的，比較柳杉林内臥躺 前後，受測者的臂動脈舒張壓增加3.48 mmHg (p < 0.001)，中心動脈收縮壓及舒張壓也分 別增加2.42 mmHg及2.71 mmHg (p = 0.0014)，而且平均動脈壓明顯增加2.94 mmHg (p < 0.001)。然而，心率、左心室收縮力、心臟輸出指數、周邊血管阻力及臂動脈阻力，在柳 杉林内臥躺前後並沒有顯著差異(p > 0.05)，以上顯示溪頭柳杉林内臥躺會增加臂動脈舒 張壓、中心動脈舒張壓及平均動脈壓造成心臟負擔，並且血管功能沒有改善。本研究證明 利用心脈儀評估溪頭短期森林浴，對心血管功能有潛在的益處；同時我們必須注意在森林 裡臥躺纾壓活動，對心血管功能可能的不良影響。

Forest bathing enhances human immune function, lowers blood pressure (BP), has beneficial effects on cardiovascular and endocrine metabolic parameters, decreases sympathetic nerve activity, and enhances parasympathetic nerve activity in human body. The purpose of this study was to evaluate effects on cardiovascular functions after a short-term forest bathing by using a dynapluse, and to compare the differences before and after lying on the ground under Cryptomeria japonica forests in Xitou. Results showed that diastolic BP of brachial artery decreased significantly by 2.5 mmHg (p=0.0021), centrol systolic and diastolic BP decreased by 4.07 mmHg (p=0.0253) and 2.28 mmHg (p=0.0068), and mean artery pressure (MAP) decreased by 2.68 mmHg (p=0.0078), respectively, after forest bathing. In addition, systemic vascular resistance (SVR) decreased by 207.7 dynes-s cm-5 from 1581.3 dynes-s cm-5 to 1373.6 dynes-s cm- 5, and brachial artery resistance (BAR) decreased by 38.9 dynes-s cm-5 from 297.0 dynes-s cm-5 to 258.1 dynes-s cm-5, indicating that the vascular functions improved after forest bathing. On the contrary, we observed that the brachial diastolic BP increased by 3.48 mmHg (p<0.001), and the cSBP and cDBP increased by 2.42 mmHg and 2.71 mmHg (p=0.0014), and MAP increased significantly by 2.94 mmHg (p<0.001), respectively, after lying on the ground under the forests. However, there were no significant difference (p>0.05) in cardiac function indices, such as heart rate, left ventricular contractility, cardiac index, and vascular function indices of SVR and BAR after lying on the ground under the forests. The comparisons indicated that lying on the ground under the forests did not improve cardiovascular functions but instead increased brachial and central blood pressure. In conclusion, this study demonstrated that the potential cardiovascular benefits of a short-term forest bathing, and also indicated that we have to be cautious about the activity of lying on the ground under the forests.