期刊
PSYCHOLOGY & HEALTH
卷 33, 期 9, 页码 1079-1099出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/08870446.2018.1456660
关键词
ecological momentary intervention; stress; worry; perseverative cognition; heart rate variability
Objective: Perseverative cognition (e.g. worry) and unconscious stress are suggested to be important mediators in the relation between stressors and physiological health. We examined whether a smartphone-based worry-reduction training improved a physiological marker of stress (i.e. increased heart rate variability [HRV]) and unconscious stress.Design: Randomised-controlled trial was conducted with individuals reporting work stress (n=136). Participants were randomised to the experimental, control or waitlist condition (resp. EC, CC, WL). The EC and CC registered emotions five times daily for fourweeks. The EC additionally received a worry-reduction training with mindfulness exercises.Main Outcome Measures: Primary outcome was 24-h assessments of HRV measured at pre-, mid- and post-intervention. Secondary outcomes were implicit affect and stress. Effects on heart rate and other psychological outcomes were explored.Results: A total of 118 participants completed the study. No change from pre- to post-intervention was observed for the primary or secondary outcomes. The change over time was not different between conditions.Conclusion: Findings suggest that the training was ineffective for improving HRV or psychological stress. Future studies may focus on alternative smartphone-based stress interventions, as stress levels are high in society. There is need for easy interventions and smartphones offer possibilities for this.
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