Mindfulness-based childbirth and parenting for pregnant women with high fear of childbirth and their partners: outcomes of a randomized controlled trial assessing short- and longer-term effects on psychological well-being, birth and pregnancy experience

Stress is not so bad-cortisol level and psychological functioning after 8-week HIIT program during pregnancy: a randomized controlled trial

Background

Amid extensive pregnancy exercise research, the impact of High Intensity Interval Training (HIIT) on pregnant women's mental health is underexplored. Despite exercise benefits, it can trigger stress responses like elevated cortisol. This study fills the gap by investigating correlations between hair cortisol levels, mental health, and HIIT effects in pregnant women.

Methods

We conducted a randomized control trial among 38 Caucasian women in uncomplicated, singleton pregnancy (age 31.11 ± 4.03 years, 21.82 ± 4.30 week of gestation; mean ± SD). The experimental group comprised 22 women engaged in an 8-week high-intensity interval training program (HIIT). The comparative group consisted of 16 pregnant women undergoing an 8-week educational program (EDU). Before and after the interventions, all women were evaluated using the following tools: Hair cortisol level measurements, Beck Depression Inventory - II for depressive symptoms assessment, Childbirth Attitudes Questionnaire for childbirth fear measurement, 12-item Short Form Health Survey to gage health-related quality of life, International Physical Activity Questionnaire for physical activity level estimation, and a Progressive maximal exercise test to evaluate maternal exercise capacity.

Results

The key finding of our study reveals that women engaged in the HIIT intervention exhibited a distinct cortisol production pattern in contrast to the EDU group practicing standard moderate intensity physical activity. In the HIIT group, there was an increase in hair cortisol levels, while the EDU group showed a notable decrease. Remarkably, HIIT stimulated cortisol production without adversely impacting fear of childbirth and psychophysical condition during pregnancy. In fact, only the HIIT group showed a significant enhancement in mental health.

Conclusion

No links were discovered between hair cortisol levels and the severity of depressive symptoms, psychophysical well-being, or fear of childbirth. Hence, based on our research, employing cortisol levels during pregnancy as an indicator of negative stress or depression risk appears unwarranted.

The effectiveness of mindfulness-based interventions on self-efficacy and fear of childbirth in pregnant women: A systematic review and meta-analyses

BACKGROUND

Mindfulness-based interventions are a relatively new and potentially useful psychological approach in prenatal care. This study aimed to determine the effect of mindfulness-based programs on pregnant women's fear of childbirth FOC and self-efficacy.

METHODS

The systematic search of PubMed, Scopus, Web of Science, Cochrane Library, Google Scholar, SID, and Magiran databases began on 11 November 2021 and ended on 17 December 2021 to obtain studies published in English and Persian without date constraints. Another search was conducted in March 2023. The Cochrane handbook tool was used to evaluate selected studies and their risk of bias.

RESULTS

From a total of 316 records obtained, after removing duplicate items, 16 full texts were evaluated for eligibility; and finally, 10 studies were included in the study and meta-analysis. Based on the results of meta-analyses, mindfulness-based exercises may improve childbirth self-efficacy (SMD = 1.34, 95 % CI: 0.39 to 2.30; P < 0.00001; 5 studies, 304 women; low-certainty evidence) and probably reduce the level of FOC (SMD = -0.71, 95 % CI: -1.14 to -0.27; P = 0.001; 5 studies, 424 women; moderate-certainty evidence) in the intervention group compared to the control group.

LIMITATIONS

Different duration of interventions across studies, different gestational ages at the time of enrollment, and large heterogeneity in the meta-analysis of results were the limitations of this study.

CONCLUSION

Mindfulness-based interventions probably reduce FOC and may promote self-efficacy. More randomized controlled trials with stronger designs and adequate power samples are required to verify the effectiveness of mindfulness-based interventions, especially on self-efficacy in pregnant women.

PROSPERO ID

CRD42021294056.