Abstract：
This study examined the effect of slow diaphragmatic breathing on psychophysiological stress responses and pressurized performance. Sixty-seven participants (40 female; Mage = 20.17 ± 2.77 years) were randomly assigned to either a diaphragmatic-breathing, paced-breathing, or control group. Participants completed a nonpressurized shooting task and then received instructions about a pressurized version. Next, the diaphragmatic group was told to breathe at 6 breaths/min, the paced group at 12 breaths/min, and the control group received no instructions. Following a 5-min intervention period, participants completed the pressurized task while performance was assessed. Psychophysiological stress responses (e.g., cognitive anxiety, heart rate) were recorded throughout. Results revealed that diaphragmatic breathing had mixed effects on stress responses, with some unaffected (e.g., heart rate) and others reduced (e.g., cognitive anxiety), and little effect on performance. Findings suggested that slow diaphragmatic breathing might not aid pressurized performance but could benefit psychological stress responses.
摘要：
这项研究检查了慢膈呼吸对心理生理应激反应和加压性能的影响。67名参与者（40名女性；Mage=20.17±2.77岁）被随机分配到膈呼吸，节奏呼吸，或对照组。参与者完成了非加压射击任务，然后收到了有关加压版本的说明。接下来,膈肌组被告知以6次呼吸/分钟呼吸，有节奏的小组以12次呼吸/分钟，对照组没有收到任何指示.经过5分钟的干预期，参与者在完成加压任务的同时评估表现.心理生理应激反应(例如，认知焦虑，心率）记录。结果显示，膈肌呼吸对应激反应有混合效应，与一些未受影响的(例如，心率)和其他降低(例如，认知焦虑)，对性能影响不大。研究结果表明，缓慢的diaphragm肌呼吸可能不会帮助压力表现，但会有益于心理应激反应。
