Relationship between stress status and smartwatch-measured stress indicators in postpartum women: A pilot study

DOI Open Access
  • Terasawa Eriko
    Doctoral Program in Nursing Science, Graduate School of Comprehensive Human Sciences, University of Tsukuba
  • Asano Yoshihiro
    School of Medicine and Health Sciences, Shinshu University
  • Okayama Hisayo
    Faculty of Medicine, University of Tsukuba

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Other Title
  • 産後女性のストレス状態とスマートウォッチが測定する ストレス指標との関連：パイロットスタディ

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Approximately 30‐50% of women experience changes in their mental health during the postpartum period. Smartwatches are gaining popularity as easy-to-use tools for self-monitoring stress. In this study, we aimed to clarify subjective depression, stress status, and physiological data as methods of evaluating depression and stress status in postpartum women and examine a method to easily measure the stress status of postpartum women in their daily lives. The study participants included three primiparas who were investigated at home at 1 and 2 months postpartum. Smartwatches were used to measure heart rate and stress levels, and samples for salivary cortisol measurements were collected twice daily for 3 days. Although the smartwatch-measured stress level did not reflect the stress response indicated by salivary cortisol, our pilot study showed the potential use of long-term RRI as a stress indicator in postpartum women. No significant correlation was found between the stress levels calculated using smartwatches and salivary cortisol levels (r = -0.286, p = 0.266).

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