Abstract: Objective: To explore the impact of active cycle breathing techniques training based on IKAP theory on dyspnea belief, peak expiratory flow rate, and exercise self-efficacy in patients with undergoing high-flow nasal oxygen therapy during ICU transition period. Methods: Patients with high-flow nasal oxygen therapy during ICU transition period were selected from a Class A tertiary hospital in Tianjin. The control group comprised 46 patients admitted from October 2021 to February 2022, who received active cycle breathing techniques training under conventional health education guidance. The observation group included 46 patients admitted from March to September 2022, who received active cycle breathing techniques training guided by the IKAP theory. The scores for dyspnea belief, peak expiratory flow rate, and exercise self-efficacy were compared between the two groups before and after the intervention. Results: The observation group had significantly lower scores for dyspnea belief, and higher scores for peak expiratory flow rate and exercise self-efficacy compared to the control group (P<0.05). Conclusion: Active cycle breathing techniques training based on the IKAP theory can reduce patients′ exercise-related fear of dyspnea, enhance their ability to cough and expectorate, and improve their confidence in physical activity.

Key words:  IKAP, Active cycle breathing techniques training, ICU transition period, High-flow nasal oxygen therapy

摘要： 目的：探讨基于 IKAP 理论的主动循环呼吸技术训练对 ICU 过渡期经鼻高流量氧疗患者呼吸困难信念、呼气峰流速及运动自我效能的影响。方法：选取天津市某三级甲等医院 ICU 过渡期经鼻高流量氧疗患者。2021 年 10 月至 2022 年 2 月收治的 46 例患者为对照组，采用常规健康教育指导下的主动循环呼吸技术训练；2022 年 3 月至 9 月收治的 46 例患者为观察组，采用 IKAP 理论指导下的主动循环呼吸技术训练。比较两组患者干预前后呼吸困难信念得分、呼气峰流速及运动自我效能得分。结果：观察组患者呼吸困难信念得分低于对照组，呼气峰流速及运动自我效能得分高于对照组，差异有统计学意义（P<0.05）。结论：基于 IKAP 理论的主动循环呼吸技术训练，能够降低患者呼吸困难相关运动恐惧水平，提高患者咳嗽、排痰能力，增强患者的运动信心。

关键词: IKAP, 主动循环呼吸技术, ICU 过渡期, 经鼻高流量氧疗