Sveinsdóttir Sigrún Þóra, Lehrer Paul, Jóhannsdóttir Kamilla Rún
Department of Psychology, Reykjavik University, Reykjavik, Iceland.
Department of Psychiatry, Rutgers Robert Wood Johnson Medical School, Piscataway, NJ, USA.
Appl Psychophysiol Biofeedback. 2025 Mar;50(1):49-64. doi: 10.1007/s10484-024-09669-8. Epub 2024 Oct 27.
High heart rate variability (HRV) is increasingly recognized as an indicator of a healthy regulatory system, reflecting the dynamic balance between sympathetic (SNS) and parasympathetic (PSNS) nervous system activity. According to the neurovisceral integration model, this balance is managed by the central autonomic network (CAN), comprised of specific brain regions involved in emotional, attentional, and autonomic regulation. HRV thus reflects the performance of the cognitive, affective, and autonomic regulation system. Numerous studies support the relationship between HRV and the CAN, including research on HRV biofeedback training (HRVBF). Studies on the effectiveness of HRVBF for professions such as police officers have shown improvements in self-regulation, decision-making, and performance. However, few studies have specifically explored HRVBF's influence on HRV metrics in police officers, highlighting a need for further research. This study addresses this gap by randomly assigning 27 Icelandic police officers to intervention or wait-list control groups. The intervention group underwent a five-week HRVBF program, including group and individual training sessions. Results showed significant increases in HRV metrics for the intervention group, indicating improved autonomic function and stress resilience. Mental resilience increased significantly as measured by subjective measures of attentional control, mindful awareness, and reduced fatigue. These findings support the efficacy of HRVBF in enhancing HRV and mental resilience for police officers, suggesting its applicability and potential for integration into existing training programs.
高心率变异性（HRV）越来越被认为是健康调节系统的一个指标，反映了交感神经系统（SNS）和副交感神经系统（PSNS）活动之间的动态平衡。根据神经内脏整合模型，这种平衡由中枢自主网络（CAN）管理，该网络由参与情绪、注意力和自主调节的特定脑区组成。因此，HRV反映了认知、情感和自主调节系统的表现。许多研究支持HRV与CAN之间的关系，包括对HRV生物反馈训练（HRVBF）的研究。对警察等职业进行的HRVBF有效性研究表明，自我调节、决策和表现都有所改善。然而，很少有研究专门探讨HRVBF对警察HRV指标的影响，这凸显了进一步研究的必要性。本研究通过将27名冰岛警察随机分配到干预组或等待名单对照组来填补这一空白。干预组接受了为期五周的HRVBF计划，包括小组和个人培训课程。结果显示，干预组的HRV指标显著增加，表明自主功能和压力恢复力有所改善。通过注意力控制、正念意识和疲劳减轻的主观测量方法测得，心理恢复力显著提高。这些发现支持了HRVBF在提高警察的HRV和心理恢复力方面的有效性，表明其在整合到现有培训计划中的适用性和潜力。
