Effect of integrated yoga on anxiety, depression & well being in normal pregnancy

Investigating discrepancies in findings between rigorous randomized trials and meta-analyses evaluating pregnancy interventions to limit gestational weight gain

INTRODUCTION

Robust randomized trials consistently demonstrate little impact from diet and physical activity interventions on gestational weight gain (GWG) and clinical outcomes, although meta-analyses report some benefit. Our aim was to evaluate the effect of trial quality on treatment effect estimates and review conclusions.

METHODS

We conducted a systematic review of dietary and/or physical activity interventions for pregnant women with a body mass index ≥18.5 kg/m2. We assessed studies for risk of bias and methodological features impacting reliability. Outcomes included GWG; gestational diabetes mellitus (GDM); pre-eclampsia; caesarean birth; and birth weight measures. For each outcome, a sequence of meta-analyses was performed based on intervention group and level of potential bias in the effect estimate.

RESULTS

We identified 128 eligible studies. The most robust estimate from a combined diet and physical activity behavioral intervention, with only studies at negligible risk of bias, was a difference in GWG of 1.10 kg (95% CI -1.62 to -0.58; 17,755 women). There was no evidence of an effect on any clinical outcomes.

CONCLUSIONS

Our findings highlight discrepancies produced by the indiscriminate inclusion of studies with methodological flaws in previous systematic reviews. Regular weighing of pregnant women is futile in the absence of clinical benefit.

Effects of Yoga on Stress in Pregnant Women

During pregnancy, a woman's body undergoes physiological and metabolic changes to nourish the developing fetus. Every woman experiences pregnancy-related stress differently, with symptoms and difficulties ranging from mild to severe. However, various therapies are available to help reduce stress levels. The purpose of this study is to assess the impact of integrated yoga, which includes asanas and pranayama, on stress levels and physiological markers in pregnant women. The study is a prospective, randomized, controlled, single-blind trial with 2 parallel groups. The intervention group was provided with integrated yoga therapy, while the control group was given routine standard care from 18 to 22 weeks to 33-35 weeks of gestation. To measure the stress level, a standardized perceived stress scale was used, which has 10 items with stress scores ranging from 0 to 4, with a maximum score of 40. The average stress score was significantly lower in the intervention group (P < .001) as well as normal physiological parameters when compared to the control group. Findings suggest that practicing yoga during pregnancy is safe and effective in reducing stress and preventing complications. Women who began yoga therapy during their second trimester reported a significant decrease in physiological parameters from baseline to post-intervention. However, further randomized controlled trials are necessary to determine the validity and usefulness of yoga therapy during pregnancy.

Effect of different physical activity interventions on perinatal depression: a systematic review and network meta-analysis

BACKGROUND

Perinatal depression can have profound impacts on both families and society. Exercise therapy is gradually becoming a widely used adjunct treatment for perinatal depression. Some studies have already focused on the relationship between physical activity and perinatal depression (PND). However, there is currently a lack of systematic and comprehensive evidence to address the crucial question of making optimal choices among different forms of physical activity. This study aims to compare and rank different physical activity intervention strategies and identify the most effective one for perinatal depression.

METHODS

Four databases, namely PubMed, Cochrane Library, Embase, and Web of Science, were searched for randomized controlled trials assessing the impact of physical activity interventions on perinatal depression. The search covered the period from the inception of the databases until May 2024. Two researchers independently conducted literature screening, data extraction, and quality assessment. Network meta-analysis was performed using Stata 15.1.

RESULTS

A total of 48 studies were included in the analysis. The results indicate that relaxation therapy has the most effective outcome in reducing perinatal depression (SUCRA = 99.4%). Following that is mind-body exercise (SUCRA = 80.6%). Traditional aerobics and aquatic sports were also effective interventions (SUCRA = 70.9% and 67.1%, respectively).

CONCLUSION

Our study suggests that integrated mental and physical (MAP) training such as relaxation therapy and mind-body exercise show better performance in reducing perinatal depression. Additionally, while exercise has proven to be effective, the challenge lies in finding ways to encourage people to maintain a consistent exercise routine.

TRIAL REGISTRATION

This study has been registered on PROSPERO (CRD 42,023,469,537).

The Effect of Yoga Practice on Labor Pain: A Systematic Review and Meta-Analysis

Background

Labor pain management is a critical aspect of midwifery care and an essential purpose of childbirth-related care. There is a need for comprehensive results on relevant non-therapeutic methods of reducing labor pain. This systematic review and meta-analysis study was conducted to investigate the effect of yoga practice on labor pain.

Material and Methods

We performed a systematic literature search from SCOPUS, PubMed, Web of Science, and Science Direct for relevant studies from January 1, 1990 to June 2, 2022. We selected published quasi-randomized and randomized controlled trial studies that evaluated the effect of yoga practice on labor pain. Quality research was applied. We pooled the Standardized Mean Dfference (SMD) of labor pain in pregnant women with and without yoga practice during pregnancy using a random-effects model at 95% Confidence Intervals (CIs).

Results

Nine studies including 660 women were included in the meta-analysis. Pregnant women in the yoga practice group experienced statistically significantly low labor pain at the beginning of the active phase compared to the control group (SMD: -1.10, 95% CI: -1.61, -0.58, p < 0.001; I2 = 89%). Yoga interventions also reduced the intensity of labor pain in active (SMD: -1.32, 95% CI: -2.03, -0.60, p < 0.001; I2 = 92%) and transition (SMD: -1.93, 95% CI: -2.87, -0.99, p < 0.001; I2 = 92%) phases compared to the control group, respectively.

Conclusions

The results of the study showed that yoga practice during pregnancy reduces the intensity of labor pain in different labor phases. However, these findings should be considered cautiously due to the substantial heterogeneity between studies.

Meta-analysis of the effect of different exercise modalities in the prevention and treatment of perinatal depression

BACKGROUND

The incidence of perinatal depression is increasing and has become a global public health problem to be addressed.

OBJECTIVE

To explore the prevention and treatment effects of different exercise methods on perinatal depression.

METHODS

A meta-analysis was conducted by searching databases for published "exercise interventions for perinatal depression "related randomized controlled trials, up to July 20, 2022.

RESULTS

48 randomized controlled trials were included, with a total of 5282 pregnant women. (1) Exercise prevention of prenatal depression has a low effective stress intervention effect, ranking from high to low as yoga, aerobic+resistance. (2) Exercise therapy for prenatal depression has a significant intervention effect, followed by gymnastics, pelvic floor muscle training, aerobic exercise, aerobic+resistance, and yoga. (3) Exercise prevention of postpartum depression has a low effective intervention effect, followed by yoga, aerobic exercise, aerobic+resistance, and gymnastics. (4) Exercise has a moderate equivalent stress intervention effect on treating postpartum depression, followed by aerobic exercise, water exercise, yoga, fertility dance, and stroller walking.

LIMITATIONS

Due to the small number of included literature on single exercise modalities, and maternity is a special population, most of the trial procedures included in the text were not blinded, which has a certain risk of bias and affects the accuracy of the Meta-analysis results.

CONCLUSIONS

The therapeutic effect of exercise in the prevention and treatment of perinatal depression is superior to the preventive effect, and the effect of prenatal prevention and treatment is better than that of postpartum, with a moderate effect.

Culturally Tailored Strategies for Prenatal Physical Activity for South Asian Women: A Scoping Review

Low levels of physical activity (PA) are reported in South Asian pregnant women. This scoping review summarizes culturally tailored strategies in prenatal PA studies for South Asian women and identifies barriers and facilitators. A search strategy was developed with the keywords "Physical Activity" AND Pregnant AND "South Asian" and was carried out on Medline, SportDiscus, EMBASE, Web of Science and Proquest Theses and Dissertations. Primary research studies were included. Forty-six studies were included of which 40 were from South Asian countries. No interventions were identified outside of South Asian countries. Offering material in different languages was the most common tailoring strategy. Reported barriers were possible social norms favouring inactivity, lack of awareness on safe exercises, and physical symptoms (e.g., fatigue). Facilitators included social support and relief from physical symptoms. Future PA interventions for South Asian pregnant women should account for population-specific barriers and facilitators to increase PA initiation and maintenance.

Summary of the effect of an exercise intervention on antenatal depression and the optimal program: a systematic review and Meta-analysis

OBJECTIVE

This study aimed to examine the effect of exercise intervention for antenatal depression using meta-analysis and to propose the best exercise intervention program.

METHODS

Review Manager 5.3 was used to analyze 17 papers with 2224 subjects by setting five moderators, including type, time, frequency, period, and format of exercise intervention, and a random-effects model was used to test for overall effect, heterogeneity, and publication bias.

RESULTS

(1) The effect size of the exercise intervention on antenatal depression was d = -0.56, which reached a good effect and was statistically significant; b (2) The effect size of the exercise type on antenatal depression was Yoga and a combination of aerobic exercise in order of intervention; (3) the single intervention duration of 10-75 min all had a good effect on antenatal depression, and 30-60 min had the best effect; (4) the intervention frequency of 3 to 5 times/week had the greatest amount of intervention effect on maternal depression; (5) exercise lasting 6-10 weeks had a good intervention effect on antepartum depression, and the amount of effect decreased gradually with the extension of time; (6) In terms of exercise format, the amount of intervention effect on maternal depression was in the order of group exercise, individual + group exercise.

CONCLUSIONS

Exercise intervention can significantly alleviate antenatal depression symptoms. The best exercise program for exercise intervention for antenatal depression is: Yoga and a combination of aerobic exercise intervention effects are more prominent, and the intervention effect of Yoga is the best. The use of group exercise 3-5 times per week for 30-60 min for 6-10 weeks was more likely to achieve the desired intervention effect of improving antenatal depression.

The impact of physical activity intervention on perinatal depression: A systematic review and meta-analysis

BACKGROUND

No meta-analysis has analyzed the effect of physical activity level, period of physical activity intervention, and duration of intervention, on perinatal depression. This study was to evaluate the impact of physical activity intensity, dose, period, and duration on perinatal depression.

METHODS

The literature was searched via the PubMed, Embase, Cochrane Library, and Web of Science databases. Weighted mean difference (WMD) or the risk ratio (RR) was used as the effect indicator, and the effect size was represented by the 95 % confidence interval (CI). Subgroup analysis based on the perinatal stage, physical activity intensity, physical activity equivalent, and intervention duration was performed.

RESULTS

Totally, 35 studies including 5084 women were included. Physical activity could reduce the incidence and severity of depression in perinatal women. Among depressed women with prenatal depression, low-intensity physical activity, with metabolic equivalents (METs)-min/week being <450, was associated with lower levels of depression. In the general population, the risk of postpartum depression was lower in the physical activity group when the duration of intervention was ≥12 weeks, being II, III stage, and ≥450 METs-min/week. Both low and moderate-intensity physical activity were beneficial to an improved depression severity among depressed women with postpartum depression, and moderate exercise intervention could decrease the risk of postpartum depression in general pregnant women.

LIMITATIONS

Different types of physical activities may affect the effectiveness of interventions.

CONCLUSION

Our study indicated physical activity specifically targeted at pregnant women could reduce depression risk and severity.

Feasibility, acceptability, and preliminary efficacy of yoga to improve maternal mental health and immune function during the COVID-19 crisis (Yoga-M2 trial): a pilot randomized controlled trial

Introduction

Women are vulnerable during pregnancy as they experience multiple physical and psychological problems which can lead to stress and poor quality of life ultimately affecting the development of the fetus and their health during and after pregnancy. Prior evidence suggests that prenatal yoga can improve maternal health and well-being and can have a beneficial effect on immune system functioning. To date, no study has been conducted in a rural, low-resource setting in India to assess the feasibility, acceptability, and preliminary efficacy of a yoga-based intervention on perceived stress, quality of life, pro-inflammatory biomarkers, and symptoms of upper respiratory tract infections.

Methods

To address this gap and assess whether a yoga-based intervention could improve maternal mental health and immunity during the COVID-19 crisis (Yoga-M2 trial), a single-blind individual randomized parallel group-controlled pilot trial with a 1:1 allocation ratio was implemented. We randomly allocated 51 adult pregnant women, with gestational age between 12-24 weeks in the Yoga-M2 arm (n = 25) or the enhanced usual care arm (EUC) (n = 26). Feasibility and acceptability were assessed using the process data and In-Depth Interviews (IDIs) with the trial participants and yoga instructors. Multiple linear regression was used to compare follow-up scores for quantitative outcomes.

Results

A three-month follow-up assessment was completed for 48 out of 51 participants (94.12%). We did not find any statistically significant difference between both arms in total Perceived Stress Scale scores, quality of life (Eq-5D-5L index), and serum C Reactive Protein levels at the three-month follow-up assessment. The critical barriers to practicing yoga were lack of knowledge about the benefits of yoga, lack of 'felt need' to practice yoga, lack of time to practice, lack of space, lack of transport, and lack of peer group to practice yoga. Despite this, women who regularly practiced yoga described the benefits and factors which motivated them to practice regularly.

Discussion

The learnings from this trial will help design the explanatory trial in the future and the study findings can also be used by the primary health care system to deliver yoga-based interventions in the newly created health and wellness centers.

Trial registration

This trial was prospectively registered with the Clinical Trials Registry of India on 25 January 2022. https://www.ctri.nic.in/Clinicaltrials/showallp.php?mid1=65173&EncHid=&userName=CTRI/2022/01/039701. Trial registration number: CTRI/2022/01/039701.

The approach to managing perinatal anxiety: A mini-review

Perinatal Anxiety (PNA) is defined as anxiety occurring during pregnancy and up to 12 months post-partum and is estimated to affect up to 20% of women. Risk factors for PNA are multiple and can be classed as psychological, social and biological. PNA negatively impacts on the mother, child and family. PNA is not well-recognized and diagnosis of PNA can be challenging for clinicians. There is currently no validated case-finding or diagnostic test available for PNA. PNA has been less extensively researched than perinatal depression (PND). Clinical guidance currently recommends pharmacological and psychological therapies for the management of women with PNA, however the limited research available suggests that other intervention types may also be effective with some evidence on the effectiveness of non-pharmacological interventions in primary care for PNA. This article provides a mini-review of PNA, summarizing current evidence around PNA including risk factors, the impact of PNA, the process of diagnosis of PNA and focussing predominantly on available management options for PNA.

Efficacy of nondrug interventions in perinatal depression: A meta-analysis

Perinatal depression causes significant harm to mothers and unborn infants. Nondrug intervention is a common and acceptable method for reducing perinatal depression in pregnant women; however, it lacks an evidence-based basis. This study aimed to evaluate the effectiveness of nondrug interventions, such as cognitive behavioral therapy (CBT), interpersonal psychotherapy (IPT), and yoga, in reducing perinatal depression. Randomized controlled trials (RCTs) of CBT, IPT, and yoga for improving perinatal depression were searched in the Cochrane Library, PubMed, Web of Science, Embase, ProQuest, ScienceDirect, ClinicalKey, Wanfang Data (Chinese database), and China Knowledge Resource Integrated Database. The retrieval time limit was set from the establishment of the database to December 2021. Twenty-one studies involving a total of 1981 participants were included.The present meta-analysis showed that CBT and IPT could effectively alleviate depressive symptoms in perinatal women, and the curative effect of IPT was better than that of CBT. There was no significant difference in the improvement effect of yoga on participants with depressive symptoms compared with that in the controls.This study was registered with the International Prospective Register of Systematic Reviews (PROSPERO, CRD42022307675).

Stress Reduction by Yoga versus Mindfulness Training in Adults Suffering from Distress: A Three-Armed Randomized Controlled Trial including Qualitative Interviews (RELAX Study)

Distress is a growing public health concern. In this three-armed randomized controlled trial, n = 102 adults with elevated stress levels and stress-related symptoms were randomly assigned to (1) “integrative” yoga classes which combined physical exercises, mindfulness training, and ethical/philosophical aspects of traditional yoga; to (2) Iyengar yoga classes which entailed primarily physical exercises; or to (3) mindfulness training without physical training. We hypothesized the synergistic effects of physical yoga exercises, mindfulness, and ethical/philosophical aspects. The primary outcome was the group difference on Cohen’s Perceived Stress Scale (PSS) after 12 weeks. Secondary outcomes included burnout, quality of life, physical complaints, depression, anxiety, mindfulness, interoceptive awareness, self-regulation, spirituality, mysticism, and posttraumatic stress. All outcomes were evaluated at baseline (V0), after 12 weeks (V1), and after 24 weeks (V2). A subset of participants took part in qualitative interviews. A lasting and clinically relevant stress reduction was observed within all groups (PSS ΔV0−V1Integrative Yoga = −6.69 ± 6.19; ΔV0−V1Iyengar Yoga = −6.00 ± 7.37; ΔV0−V1Mindfulness = −9.74 ± 7.80; all p < 0.00). Effect sizes were also statistically large at the end of the follow-up period (Cohen’s d Integrative Yoga = 1.41; d Iyengar Yoga = 1.37; d Mindfulness = 1.23). There were no significant group differences or evidence of relevant synergistic effects from combining mindfulness and physical yoga exercises. All three interventions were found to be equally effective methods of stress reduction. Their use in practice should be based on availability and patient preference.

Body image dissatisfaction and interoceptive sensibility significantly predict postpartum depressive symptoms

BACKGROUND

During pregnancy women experience rapid and unique changes in body weight, shape and size over a relatively short time period. While research focused on the role of external bodily modifications during pregnancy, research on internal bodily variations is missing.

METHODS

In a longitudinal study, we recruited healthy pregnant women and measured whether and how depressive symptoms, body image dissatisfaction and the subjective tendency to focus on one's own internal bodily sensations, i.e., interoceptive sensibility, changed during pregnancy and postpartum. Pregnant women filled online self-report questionnaires during pregnancy (i.e. second and third trimester) and after (i.e. six weeks) the delivery, including the Body Areas Satisfaction Scale, the Multidimensional Assessment of Interoceptive Awareness, and the Edinburgh Postnatal Depression Scale.

RESULTS

While depressive symptoms remained stable in the peripartum, body image dissatisfaction increased in the postpartum compared to the pregnancy period, and interoceptive sensibility increased over pregnancy. Findings showed that the increase of body dissatisfaction through the peripartum and the levels of interoceptive sensibility in the early phase of pregnancy predicted depressive symptoms in the postpartum.

LIMITATIONS

Interoception was evaluated as a subjective measure (i.e., interoceptive sensibility). Future studies may include objective measures of interoceptive accuracy and interoceptive awareness.

CONCLUSIONS

The current study supports the importance of body image dissatisfaction and interoceptive sensibility in the development of postpartum depressive symptoms. Future studies need to investigate if interventions aimed to increase interoceptive sensibility might be useful in preventing depressive symptoms and identify the mechanisms that can lead to these changes.

Yoga to improve maternal mental health and immune function during the COVID-19 crisis (Yoga-M2 trial): study protocol for a pilot randomized controlled trial

Background: Mental health of women is adversely affected during pregnancy. Stress and depression during pregnancy negatively impact birthweight and neuro-cognitive development of the fetus. The current crisis due to the COVID-19 pandemic further adds to the stressful situation. Yoga practiced during pregnancy has beneficial effects on improving stress and depression and preliminary evidence suggests that yoga-based interventions can improve immunity. This study aims to examine the feasibility, acceptability, and preliminary efficacy of a Yoga-based intervention for maternal Mental health and i Mmunity (Yoga-M ₂) in a rural community in India. 

  

Methods: The study design will be a single-blind individual randomized parallel group-controlled pilot trial with 1:1 allocation ratio. Adult pregnant women, with gestational age between 12–24 weeks will be randomly allocated to either the Yoga-M ₂ group or the Enhanced Usual Care (EUC) group. Participants in the Yoga-M ₂ arm will attend weekly group yoga sessions for 12 weeks and will be encouraged to practice yoga at home. In the EUC arm, participants will receive a single session of health education. Eligibility of the participants, recruitment, retention-in-care, and study completion rates will be estimated and feasibility of delivering Yoga-M ₂ and acceptability of this intervention by the participants will be assessed. Change in the scores of the Perceived Stress Scale (PSS), EuroQoL 5 Dimensions Score (EQ-5D-5L), Wisconsin Upper Respiratory Symptom Severity Scale (WURSS-21), and serum C-Reactive Protein at three-months from baseline will be used to assess preliminary efficacy.

Discussion: The key outputs of this trial will be a structured intervention manual and evidence about the feasibility, acceptability, and preliminary efficacy of the intervention, establishing the foundation to undertake an explanatory randomized controlled trial to assess efficacy and cost-effectiveness of Yoga-M ₂ intervention. 

Trial registration: CTRI/2022/01/039701. Prospectively registered with the Clinical Trials Registry of India on 25 January 2022.

The characteristics and effectiveness of pregnancy yoga interventions: a systematic review and meta-analysis

Background

Yoga is a popular mind-body medicine frequently recommended to pregnant women. Gaps remain in our understanding of the core components of effective pregnancy yoga programmes. This systematic review and meta-analysis examined the characteristics and effectiveness of pregnancy yoga interventions, incorporating the FITT (frequency, intensity, time/duration and type) principle of exercise prescription.

Methods

Nine electronic databases were searched: MEDLINE, PsycINFO, EMBASE, CINAHL, WHOLiS, AMED, ScieLo, ASSIA and Web of Science. Randomised control trials and quasi-experimental studies examining pregnancy yoga interventions were eligible. Covidence was used to screen titles, abstracts, and full-text articles. Outcomes of interest were stress, anxiety, depression, quality of life, labour duration, pain management in labour and mode of birth. The Cochrane Collaboration’s Risk of Bias Assessment tool was used to assess methodological quality of studies and GRADE criteria (GRADEpro) evaluated quality of the evidence. Meta-analysis was performed using RevMan 5.3.

Results

Of 862 citations retrieved, 31 studies met inclusion criteria. Twenty-nine studies with 2217 pregnant women were included for meta-analysis. Pregnancy yoga interventions reduced anxiety (SMD: -0.91; 95% CI: − 1.49 to − 0.33; p = 0.002), depression (SMD: -0.47; 95% CI: − 0.9 to − 0.04, P = 0.03) and perceived stress (SMD: -1.03; 95% CI: − 1.55 to − 0.52; p < 0.001). Yoga interventions also reduced duration of labour (MD = − 117.75; 95% CI − 153.80 to − 81.71, p < 0.001) and, increased odds of normal vaginal birth (OR 2.58; 95% CI 1.46–4.56, p < 0.001) and tolerance for pain. The quality of evidence (GRADE criteria) was low to very low for all outcomes. Twelve or more yoga sessions delivered weekly/bi-weekly had a statistically significant impact on mode of birth, while 12 or more yoga sessions of long duration (> 60 min) had a statistically significant impact on perceived stress.

Conclusion

The evidence highlights positive effects of pregnancy yoga on anxiety, depression, perceived stress, mode of birth and duration of labour.

Systematic review registration: PROSPERO, CRD42019119916. Registered on 11th January 2019.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12884-022-04474-9.

Yoga to improve maternal mental health and immune function during the COVID-19 crisis (Yoga-M2 trial): study protocol for a pilot randomized controlled trial

Background: Mental health of women is adversely affected during pregnancy. A huge proportion of pregnant women suffer from stress and depression which negatively impacts birthweight and neuro-cognitive development of the fetus. The current crisis due to the COVID-19 pandemic further adds to the stressful situation. Yoga practiced during pregnancy has beneficial effects on improving stress and depression and preliminary evidence suggests that yoga-based interventions can improve immunity. This study aims to examine the feasibility, acceptability, and preliminary efficacy of a Yoga-based intervention for maternal Mental health and iMmunity (Yoga-M2) in a rural community in India.     Methods: The study design will be a single-blind individual randomized parallel group-controlled pilot trial with 1:1 allocation ratio. Adult pregnant women, with gestational age between 12–24 weeks will be randomly allocated to either the Yoga-M2 group or the Enhanced Usual Care (EUC) group. Participants in the Yoga-M2 arm will attend weekly group yoga sessions for 12 weeks and will be encouraged to practice yoga at home. In the EUC arm, participants will receive a single session of health education. Eligibility of the participants, recruitment, retention-in-care, and study completion rates will be estimated and feasibility of delivering Yoga-M2 and acceptability of this intervention by the participants will be assessed. Change in the scores of the Perceived Stress Scale (PSS), EuroQoL 5 Dimensions Score (EQ-5D-5L), Wisconsin Upper Respiratory Symptom Severity Scale (WURSS-21), and serum C-Reactive Protein at three-months post-randomization will be used to assess preliminary efficacy.   Discussion: The key outputs of this trial will be a structured intervention manual and evidence about the feasibility, acceptability, and preliminary efficacy of the intervention, establishing the foundation to undertake an explanatory randomized controlled trial to assess efficacy and cost-effectiveness of Yoga-M2 intervention.  Trial registration: CTRI/2022/01/039701. Prospectively registered with the Clinical Trials Registry of India on 25 January 2022.

Prenatal Anxiety and Exercise. Systematic Review and Meta-Analysis

The prevalence of prenatal anxiety has increased during the COVID-19 pandemic. Anxiety is associated with other cardiovascular, physiological, and mental illnesses, resulting in adverse health effects for the mother and foetus. The purpose of this study was to evaluate the effects of physical activity (PA) during pregnancy on the prevalence of prenatal anxiety or symptoms of anxiety. A systematic review and two meta-analyses were performed (Registration No. CRD42021275333). Peer-reviewed articles reporting the effect of a PA intervention on anxiety during pregnancy were included. The first meta-analysis (MA) included 10 studies reporting final scores of prenatal anxiety. A negative association between moderate PA during pregnancy and prenatal anxiety was found in this analysis (z = −2.62, p < 0.01; ES = −0.46, 95% CI = −0.80, −12, I2 = 84%, Pheterogeneity = 0.001). The second MA included eight studies in which measures both before and after a PA intervention were reported. The findings of this analysis revealed a positive association between exercise practice during pregnancy and a decrease in prenatal anxiety scores (z = −3.39, p < 0.001; ES = −0.48, 95% CI = −0.76, −0.20, I2 = 71%, Pheterogeneity = 0.001). Supervised PA during pregnancy could prevent and reduce prenatal anxiety and anxiety symptoms.

Managing job stress among teachers of children with autism spectrum disorders: A randomized controlled trial of cognitive behavioral therapy with yoga

BACKGROUND

Job-related stress undermines occupational, personal, and organizational outcomes. Stress symptoms are common among teachers of children with autism spectrum disorders and affect the academic progress of the children. This study investigated the effectiveness of yoga-based cognitive behavioral therapy in reducing occupational stress among teachers of children with autism in Lagos states, Nigeria.

METHODS

The current study adopted a group-randomized waitlist control (WLC) trial design with pre-test, posttest, and follow-up assessments. Participants included 58 teachers of children with autism in public and private special schools in Lagos state. Participants were randomly assigned to combined cognitive behavioral therapy and yoga (Y-CBT) (N = 29) and WLC (N = 29) groups. The Y-CBT group participated in a 2 hours Y-CBT program weekly for 12 weeks. Three instruments - Demographic Questionnaire, Single-Item Stress Questionnaire, and Teachers' Stress Inventory (TSI) were used to collect data. Data were collected at baseline; posttest and follow-up evaluations. Data were analyzed using means, standard deviations, t test statistics, repeated measures analysis of variance, and bar charts.

RESULTS

Results revealed that all dimensions of job stress (perception of stress sources, stress manifestation, and total TSI scores) reduced significantly at posttest and follow up assessments among the Y-CBT group, compared to the WLC.

CONCLUSION

It was concluded that Y-CBT modalities could help to minimize the perception of stress sources and stress manifestation as well as total TSI scores among teachers of children with autism spectrum disorders.

The effect of music, massage, yoga and exercise on antenatal depression: A meta-analysis

BACKGROUND

Prenatal depression affects 20.7 percent of women worldwide, which was associated with preterm birth, low birth weight and Apgar score, as well as cognitive, emotional and behavioral development disorders. We conducted a systematic review and meta-analysis to retrieve the latest and best evidence about music, massage, yoga and exercise in the prevention and treatment of prenatal depression, and to preliminarily compare the four methods to explore the most effective means. We also compared different types of yoga and music, in order to find the most effective type of intervention.

METHODS

A comprehensive literature search was carried out through six databases on randomized controlled trials (RCTs). Effects were summarized by a random effects model using mean differences with 95% confidence intervals. Evidence quality was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) criteria.

RESULTS

This research found low to very low evidence that yoga, exercise, music and massage could reduce antenatal depression. Among them, music may be the most effective intervention, and integrated yoga other than simple yoga would improve prenatal depression. The effect of Chinese Medicine Five Element Music may be better than ordinary music.

CONCLUSION

It is important to support prenatal depression patients to make informed decisions about their behavior therapy.

Non-pharmacological interventions to reduce anxiety in pregnancy, labour and postpartum: A systematic review

BACKGROUND

The anxiety mothers experience during pregnancy is well known and may have negative consequences for the emotional, psychological, and social development of newborns. Anxiety must therefore be reduced using different strategies.

OBJECTIVE

To determine published non-pharmacological interventions to reduce anxiety during pregnancy, childbirth and postpartum.

METHODS

A systematic peer-review of experimental and quasi-experimental studies was conducted using the PubMed, Scopus, Web of Science (WOS), and CINAHL databases. The quality of the studies was assessed using the Spanish version of the PEDro scale. Two researchers participated independently in the data selection and extraction process.

FINDINGS

587 articles were identified, of which 21 met the eligibility criteria. In eleven studies the intervention was performed during pregnancy, in three of them during labour, in four of them during the postpartum period, and in three of them during pregnancy and postpartum. During pregnancy, the most effective interventions were behavioural activation, cognitive behavioural therapy, yoga, music therapy, and relaxation; during childbirth: aromatherapy; during pregnancy and postpartum: antenatal training, massage by partners, and self-guided book reading with professional telephone assistance.

CONCLUSION AND IMPLICATIONS

The most effective interventions to reduce anxiety were performed either during pregnancy or during the postpartum period, not during labour. Most of the interventions were performed on the women, with few of them being performed on both partners. Non-pharmacological interventions may be applied by nurses and midwives to reduce anxiety during pregnancy, labour and postpartum.

Multidimensional analyses of the effect of exercise on women with depression: A meta-analysis

BACKGROUND

The proportion of women is higher than men in depression. This is mainly due to women's physiological regulation is different from men, especially in puberty, menstruation, pregnancy, menopause, among others. Therefore, treating depressive women is still a health challenge. Besides, recent studies of exercise therapy have a more outstanding performance in treating depression, especially in contrast to drug therapy and psychotherapy. Its main advantages are convenience, quickness, no side effects, real-time, and long-term effectiveness.

OBJECTIVE

The aim of this study was to systematically review the clinical efficacy of exercise on women with depressive symptoms.

METHODS

Searching PubMed, The Cochrane Library, and Embase databases to collect randomized controlled trials about exercise in the treatment of depressive women. After literature screening, data extraction, and literature quality evaluation, the meta-analysis of acquirement data was performed with RevMan5.3 software.

RESULTS

A total of 2294 patients were included in 25 different articles totally. Meta-analysis shows that compared with the control group, exercise could relieve female depression (standard mean difference [95% confidence interval, CI] = -0.64 [-0.89 to -0.39], Z = 4.99, P < .001). Subgroup analysis shows that different types of exercise have significant effects in improving depression symptoms. Exercise therapy has better effect on depressive patients induced by physiology or disease than ordinary depressive patients.

CONCLUSION

Exercise can significantly improve depressive symptoms in women.

Effectiveness of Yoga Lifestyle on Lipid Metabolism in a Vulnerable Population-A Community Based Multicenter Randomized Controlled Trial

Background: Dyslipidemia poses a high risk for cardiovascular disease and stroke in Type 2 diabetes (T2DM). There are no studies on the impact of a validated integrated yoga lifestyle protocol on lipid profiles in a high-risk diabetes population. Methods: Here, we report the results of lipid profile values of 11,254 (yoga 5932 and control 5322) adults (20–70 years) of both genders with high risk (≥60 on Indian diabetes risk score) for diabetes from a nationwide rural and urban community-based two group (yoga and conventional management) cluster randomized controlled trial. The yoga group practiced a validated integrated yoga lifestyle protocol (DYP) in nine day camps followed by daily one-hour practice. Biochemical profiling included glycated hemoglobin and lipid profiles before and after three months. Results: There was a significant difference between groups (p < 0.001 ANCOVA) with improved serum total cholesterol, triglycerides, low-density lipoprotein, and high-density lipoprotein in the yoga group compared to the control group. Further, the regulatory effect of yoga was noted with a significant decrease or increase in those with high or low values of lipids, respectively, with marginal or no change in those within the normal range. Conclusion: Yoga lifestyle improves and regulates (lowered if high, increased if low) the blood lipid levels in both genders of prediabetic and diabetic individuals in both rural and urban Indian communities.

Exercise During Pregnancy and Prenatal Depression: A Systematic Review and Meta-Analysis

Background: Prenatal depression is associated with an increased risk of physical, physiological, cardiovascular, and psychological diseases for mothers and future newborns. Prenatal depression and depressive symptoms could have negative effects on the cognitive, emotional, social, and behavioral development of children. Objective: This study aimed to examine the influence of exercise during pregnancy on the prevalence of prenatal depression and depressive symptoms in the scientific literature. Data Sources: A search was carried out examining different online databases up to November 2020. Methods of Study Selection: A systematic review with random effects meta-analysis was performed. Only randomized controlled trials published in English or Spanish with pregnant populations and interventions with exercise programs carried out during pregnancy were included. The scores obtained by the tools that measured the emotional state and depressive symptoms as well as the number and percentage of depressed women of the study groups were analyzed. Tabulation, Integration, and Results: We analyzed 15 studies and found a negative association between moderate exercise during pregnancy and prenatal depression (ES = -0.36, 95% CI = -0.58, -13, I 2 = 80.2%, Pheterogeneity = 0.001). In addition, the studies also showed that women who were inactive during pregnancy had a 16% higher probability of suffering prenatal depression [RR = 0.84 (95% IC = 0.74, 0.96) I 2 = 61.9%, Pheterogeneity = 0.010]. Conclusion: Supervised exercise during pregnancy may be useful for the prevention and reduction of prenatal depression and depressive symptoms. Systematic Review Registration: Registered in PROSPERO (Registration No. CRD42020164819).

Mind-Body Techniques in Pregnancy and Postpartum

Maternal stress can perturb physiology and psychiatric health leading to adverse outcomes. This review investigates the effectiveness of several mind-body therapies-namely biofeedback, progressive muscle relaxation, guided imagery, tai chi, and yoga-as interventions in reducing maternal stress and other pregnancy-related conditions. Through randomized trials, these techniques have shown promising benefits for reducing pain, high blood pressure, stress, anxiety, depressive symptoms, labor pain and outcomes, and postpartum mood disturbances. As these interventions are easy to implement, low cost, and safe to perform in pregnancy, they should be considered as alternative, nonpharmaceutical interventions to use during pregnancy and postpartum care.

Developing a complex intervention to support pregnant women with mild to moderate anxiety: application of the Medical Research Council framework

Background

To design and develop an intervention to support women with symptoms of mild to moderate anxiety in pregnancy.

Methods

The development followed the MRC framework for complex interventions, utilising psychological theory, review level evidence and professional and public involvement. Two systematic reviews were completed which helped identify potentially beneficial intervention components. The theory underpinning the components was explored to consider the potential benefit for women with mild to moderate anxiety symptoms in pregnancy. Methods of delivering the intervention within maternity services were explored. The intervention comprised: group discussions, one to one support and assisted self-help resources. Midwives were identified as ideally placed to facilitate the intervention supported by midwifery support workers. A bespoke training package was provided by subject experts to prepare the facilitators.

Results

The absence of established interventions and a paucity of evidence based approaches for pregnant women with symptoms of mild to moderate anxiety indicated the need for a rigorous and systematic approach to the intervention design. This approach led to the development of an intervention feasible for implementation in maternity care systems tailored to the needs of pregnant women. The involvement of a multi-professional advisory team and active engagement of service users helped to consider the acceptability of the intervention for women and the feasibility of delivering the intervention in the context of maternity care.

Conclusion

The MRC Framework provided useful overarching guidance to develop a midwife facilitated intervention for women with symptoms of anxiety in pregnancy. The framework assisted the development of a robust rationale for each intervention component and considered the processes of evaluation and implementation into maternity care systems.

Comparing Mindful and Non-Mindful Exercises on Alleviating Anxiety Symptoms: A Systematic Review and Meta-Analysis

Background: In recent years, studies and reviews have reported the therapeutic benefits of both mindful and non-mindful exercises in reducing anxiety. However, there have not been any systematic reviews to compare their relative effectiveness for therapeutic application, especially among the non-clinical population. Thus, the aim of this review is to compare the effectiveness between mindful and non-mindful exercise on treating anxiety among non-clinical samples. Methods: Potential articles were retrieved from PubMed, Embase, Academic Search Premier, and PsycInfo. Randomized controlled trials, which involved both mindful and non-mindful exercises as intervention, and the use of anxiety outcome measures were included. Results: Twenty-four studies fulfilled the inclusion criteria and were included in our systematic review. In addition, 14 studies provided sufficient data to be included in the meta-analysis. For studies that reported significant group differences at post-assessment, results showed that mindful exercise was more beneficial in reducing anxiety than non-mindful exercise. The meta-analysis reported that yoga was more effective in reducing anxiety than non-mindful exercise. Conclusions: Compared to non-mindful exercise, yoga is shown to be more effective in alleviating anxiety symptoms. It is recommended that yoga could be used as a primary healthcare intervention to help the public reduce anxiety.

Potential benefits of Yoga in pregnancy-related complications during the COVID-19 pandemic and implications for working women

BACKGROUND

Pregnancy is a vulnerable period of growth and enrichment along with many physiological and psychological challenges. These changes can lead to complications if compounded by external stress and anxiety. COVID-19 has emerged as a chief stressor among the general population and is a serious threat among vulnerable populations. Therefore, there is a need for stress management tools, such as Yoga and physical exercises, both at home and at work. These can be adopted during the pandemic with proper maintenance of social distancing.

OBJECTIVE

To evaluate and compile literature that has reported the health outcomes of Yoga intervention on pregnancy at the workplace and analyzes both the restrictions as well as advantages of its beneficial effects in comparison to physical exercises.

METHODOLOGY

A comprehensive literature review was conducted utilizing PubMed and Google Scholar. The keywords used for the search include "Yoga", "work", "complications", "physical exercise", "drugs" and "COVID" indifferent permutations and combinations with "pregnancy". We compiled the literature with respect to pregnancy complications and the effects of drugs, physical activity and Yoga for preventing these complications.

RESULTS

We noted that pregnancy-related complications are becoming more prevalent because of a sedentary lifestyle, restricted physical activity and growing stress. In such situations, a home or workplace Yoga protocol can combine both exercise and mindfulness-based alleviation of anxiety for both working and non-working women.

CONCLUSION

Yoga can be effective for combating stress and anxiety besides boosting immunity in pregnant working women confronted with the COVID-19 pandemic.

Effect of Antenatal Exercises, Including Yoga, on the Course of Labor, Delivery and Pregnancy: A Retrospective Study

Background: Delivering a child is a very stressful experience for women. Pregnancy and labor entail complex events that are unique to each individual female. The management of labor pain is often done using analgesics and anesthesia, which have been shown to have some side effects. More comprehensive data are needed to provide clinically significant evidence for clinicians to confidently prescribe exercises to patients. This study was done to evaluate the effect of antenatal exercises, including yoga, on the course of labor, delivery, and pregnancy outcomes. Methods: A retrospective study was conducted among 200 primiparous subjects (aged 20-40). A questionnaire was provided to the subjects to obtain their demographic and obstetrical information 6 weeks after delivery, and their hospital records were also assessed for further details. Based on the nature and details obtained for the antenatal exercises, subjects were divided into two groups: control and exercise. Outcome measures included the need for labor induction, self-perceived pain and perceived exertion during labor, duration and nature of the delivery, newborn infant weight, maternal weight gain, history of back pain, and post-partum recovery. The total maternal weight gain (in kilograms) was calculated from weight at 6 weeks after delivery minus the weight at 12-14 weeks of gestation. Back pain during pregnancy and self-perceived labor pain were measured using a visual analog scale (VAS). The overall perceived exertion during labor was measured using an adapted Borg scale for perceived effort. Results: The subjects who followed regular antenatal exercises, including yoga, had significantly lower rates of cesarean section, lower weight gain, higher newborn infant weight, lower pain and overall discomfort during labor, lower back pain throughout pregnancy, and earlier post-partum recovery compared to those who did no specific exercises or only walked during pregnancy. Conclusions: This retrospective study showed that regular antenatal exercises, including yoga, result in better outcomes related to the course of labor, delivery, and pregnancy. These results notably indicated that pregnant women should be active throughout pregnancy and follow a supervised exercise program that includes yoga unless contraindicated. We require further large-scale prospective studies and quasi-experimental trials to confirm the observed findings.

The effect of practicing yoga during pregnancy on labor stages length, anxiety and pain: a randomized controlled trial

BACKGROUND

Anxiety and fear of labor pain has led to elevated cesarean section rate in some countries. This study was conducted to investigate the effect of yoga in pregnancy on anxiety, labor pain and length of labor stages.

METHODS

This clinical trial study was performed on 84 nulliparous women who were at least 18 years old and were randomly divided into two groups of yoga and control groups. Pregnancy Yoga Program consisting of 6 60-min training sessions was started every 2 weeks from week 26 of pregnancy and continued until 37 weeks of gestation. Anxiety severity at maternal admission to labor was measured by the Spielbergers State-Trait Anxiety Inventory, and labor pain was measured by Visual Analogue Scale (VAS) at dilatation (4-5 cm) and 2 h after the first measurement. Data were analyzed using Chi-Square and t-test.

RESULTS

Intervention group reported less pain at dilatation (4-5 cm) (p=0.001) and 2 h after the first measurement (p=0.001) than the control group. Stat anxiety was also lower in intervention group than the control group (p=0.003) at the entrance to labor room. Subjects in the control group required more induction compared to intervention group (p=0.003). Women in intervention group experienced shorter duration of the first phase of the labor than the control group (p=0.002). Also, the total duration of two stages of labor was shorter in intervention group than the control group (p=0.003).

CONCLUSIONS

Practicing yoga during pregnancy may reduce women's anxiety during labor; shorten labor stages, and lower labor pain.

Psychological interventions for depression and anxiety in pregnant Latina and Black women in the United States: A systematic review

Black women and Latinas have more symptoms of depression and anxiety during pregnancy than do their non-Latina White counterparts. Although effective interventions targeting internalizing disorders in pregnancy are available, they are primarily tested with White women. This article reviews randomized controlled trials and non-randomized studies to better understand the effectiveness of psychological interventions for anxiety and depression during pregnancy in Latinas and Black women. Additionally, this review summarizes important characteristics of interventions such as intervention format, treatment modality, and the use of cultural adaptations. Literature searches of relevant research citation databases produced 68 studies; 13 of which were included in the final review. Most studies were excluded because their samples were not majority Latina or Black women or because they did not test an intervention. Of the included studies, three interventions outperformed a control group condition and showed statistically significant reductions in depressive symptoms. An additional two studies showed reductions in depressive symptoms from pretreatment to post-treatment using non-controlled designs. The remaining eight studies (seven randomized and one non-randomized) did not show significant intervention effects. Cognitive behavioral therapy was the modality with most evidence for reducing depressive symptoms in pregnant Black and Latina women. No intervention was found to reduce anxiety symptoms, although only two of the 13 measured anxiety as an outcome. Five studies made cultural adaptations to their treatment protocols. Future studies should strive to better understand the importance of cultural modifications to improve engagement and clinical outcomes with pregnant women receiving treatment for anxiety and depression.

Exploring the impacts of mindfulness and yoga upon childbirth outcomes and maternal health: an integrative review

BACKGROUND

Foetal development and the long-term outcomes of the infant are influenced by the intrauterine environment. Strategies to enhance maternal health in pregnancy are needed to improve health outcomes for childbearing women and babies, advancing the well-being of our general population.

AIM

To synthesise the existing literature to determine the impacts of mindfulness and yoga practice upon birth outcomes and maternal health.

METHODS

An integrative literature review using Whittemore and Knafl's framework was undertaken in 2016-2017. Two search strategies included database peer-reviewed journal articles and ancestry searching, that is exploring the reference list of relevant research articles. After screening and checking the eligibility, a total of 12 articles were included in this review. Data analysis involved coding, visual displays, thematic analysis and comparison, and conclusion drawing.

RESULTS

The results of this review identified a broad theme that mindfulness and yoga practice is associated with improved maternal mental health antenatally and postnatally. Subthemes have been presented under the central theme including the following: increased mindfulness correlates with decreased fear of childbirth; reduced symptoms of anxiety and depression; and supportive group settings found to be beneficial by pregnant women.

CONCLUSION

The evidence presented in this review suggests that mindfulness and yoga practice are feasible and cost-effective interventions to enhance maternal mental health, particularly for women experiencing mental health challenges. Mindfulness and yoga practised regularly in the antenatal period can significantly promote the health of pregnant women and potentially their developing babies.

Design and Implementation of a Group Prenatal Care Model for Somali Women at a Low-Resource Health Clinic

OBJECTIVE

To design and implement group prenatal care (GPC) for Somali women and to evaluate participants' satisfaction, knowledge, and care engagement.

DESIGN

Quality improvement project.

SETTING/LOCAL PROBLEM

A federally qualified health center in an urban Midwestern setting, which serves a largely East African immigrant and refugee population.

PARTICIPANTS

Pregnant Somali women at more than 20 weeks gestation receiving prenatal care at the project site. Many participants were non-English speaking.

INTERVENTION/MEASUREMENTS

While honoring the 13 essential elements of CenteringPregnancy, the model was adapted to the East African population at the project site and offered to all eligible women receiving individual prenatal care at the clinic. Women attended biweekly sessions, including individual assessment and education, exposure to integrative health therapies, and group discussion. Pre- and postintervention data were collected in surveys and in-depth interviews from March through August 2017.

RESULTS

Seventeen Somali women attended a median of two sessions (range = 1-7). Self-reported results for knowledge of safe exercise in pregnancy (p = .02), exclusive breastfeeding (p = .04), what happens in the hospital (p = .02), and stress management (p = .03) increased after GPC participation. Ninety-three percent of women preferred GPC to individual care.

CONCLUSION

When adapted to meet the needs of Somali women, GPC has the potential to improve care satisfaction, increase knowledge, and reduce stress during pregnancy and the postpartum period. This model may interest women and care providers in similar community health care settings.

The effect of complementary medicines and therapies on maternal anxiety and depression in pregnancy: A systematic review and meta-analysis

BACKGROUND

Depression and anxiety are common during the antenatal and postnatal period, and are known to have a significant impact on the woman and her unborn infant. Pregnant women state a preference for non-pharmacological treatment options, and use complementary medicines and therapies to manage these symptoms. We examined the effectiveness and safety of these modalities on depression and anxiety during pregnancy.

METHODS

CENTRAL, EMBASE and PubMed databases were searched for randomised controlled trials comparing complementary therapies and medicines to a control, for pregnant women with depression or anxiety. The primary outcome measure was antenatal depression or anxiety.

RESULTS

Twenty randomised controlled trials containing 1092 women were included in the review. We found some evidence of reduced antenatal depression from three modalities. Acupuncture reduced the number of women diagnosed with antenatal depression (RR 1.68, 95% CI 1.06-2.66, 1 trial). Massage reduced the severity of antenatal depression in one trial of 149 women (SMD -0.73, 95%CI -1.07--0.39). One small trial of bright light therapy found reduced antenatal depression (RR 4.80, 95% CI -8.39--1.21, 27 women). There was no evidence of a reduction in depression and anxiety from relaxation, yoga, mindfulness and fish oils. Overall the risk of bias was high or unclear for the majority of studies.

LIMITATIONS

There are few high quality randomised controlled trials of complementary medicines and therapies examining the effect on anxiety and depression.

CONCLUSION

Acupuncture, bright light therapy, and massage may reduce antenatal depression. There is a need for high quality and larger studies that include postnatal follow up and maternal and neonatal outcomes.

Prenatal stress and the development of psychopathology: Lifestyle behaviors as a fundamental part of the puzzle

Maternal psychological stress, depression, and anxiety during pregnancy (prenatal stress; PNS) are thought to impact fetal development with long-term effects on offspring outcome. These effects would include physical and mental health, including psychopathology. Maternal sleep, diet, and exercise during pregnancy are lifestyle behaviors that are understudied and often solely included in PNS studies as confounders. However, there are indications that these lifestyle behaviors may actually constitute essential mediators between PNS and fetal programming processes. The goal of this theoretical review was to investigate this idea by looking at the evidence for associations between PNS and sleep, diet, and exercise, and by piecing together the information on potential underlying mechanisms and causal pathways through which these factors may affect the offspring. The analysis of the literature led to the conclusion that sleep, diet, and exercise during pregnancy, may have fundamental roles as mediators between PNS and maternal pregnancy physiology. By integrating these lifestyle behaviors into models of prenatal programming of development, a qualitatively higher and more comprehensive understanding of the prenatal origins of psychopathology can be obtained. The review finalizes by discussing some of the present challenges facing the field of PNS and offspring programming, and offering solutions for future research.

A meta-analysis of the effectiveness of yoga-based interventions for maternal depression during pregnancy

Prompt and effective treatment of maternal depression during pregnancy is important as it is an independent predictor of negative maternal and fetal outcomes. Yoga is an increasingly popular non-pharmacological modality. This study thus aimed to undertake a meta-analysis of the efficacy of yoga-based interventions for maternal depression during pregnancy. A total of 8 clinical studies were systematically reviewed, and 6 studies with a total of 405 pregnant mothers were included in the final meta-analysis. Applying per-protocol analysis and a random-effects model, the pooled standardized mean difference (SMD) from baseline depressive score was -0.452 (95% CI: -0.816 to -0.880, P = 0.015), supporting a statistically significant beneficial effect of yoga-based interventions on mood. Overall, yoga-based interventions are a promising non-pharmacological option, however, most trials examined were preliminary, recruited only participants with mild depression, did not blind study participants and had relatively small sample sizes. Larger randomized, controlled trials should be encouraged.

Impact of prenatal exercise on both prenatal and postnatal anxiety and depressive symptoms: a systematic review and meta-analysis

Objective

To examine the influence of prenatal exercise on depression and anxiety during pregnancy and the postpartum period.

Design

Systematic review with random effects meta-analysis and meta-regression.

Data sources

Online databases were searched up to 6 January 2017.

Study eligibility criteria

Studies of all designs were included (except case studies) if they were published in English, Spanish or French and contained information on the Population (pregnant women without contraindication to exercise), Intervention (subjective or objective measures of frequency, intensity, duration, volume or type of exercise), Comparator (no exercise or different frequency, intensity, duration, volume and type of exercise) and Outcome (prenatal or postnatal depression or anxiety).

Results

A total of 52 studies (n=131 406) were included. ‘Moderate’ quality evidence from randomised controlled trials (RCTs) revealed that exercise-only interventions, but not exercise+cointerventions, reduced the severity of prenatal depressive symptoms (13 RCTs, n=1076; standardised mean difference: −0.38, 95% CI −0.51 to –0.25, I2=10%) and the odds of prenatal depression by 67% (5 RCTs, n=683; OR: 0.33, 95% CI 0.21 to 0.53, I2=0%) compared with no exercise. Prenatal exercise did not alter the odds of postpartum depression or the severity of depressive symptoms, nor anxiety or anxiety symptoms during or following pregnancy. To achieve at least a moderate effect size in the reduction of the severity of prenatal depressive symptoms, pregnant women needed to accumulate at least 644 MET-min/week of exercise (eg, 150 min of moderate intensity exercise, such as brisk walking, water aerobics, stationary cycling, resistance training).

Summary/Conclusions

Prenatal exercise reduced the odds and severity of prenatal depression.

'It definitely made a difference': A grounded theory study of yoga for pregnancy and women's self-efficacy for labour

OBJECTIVE

To explore women's experience of attending yoga for pregnancy classes in order to generate a theory about which aspects, if any, are effective in enhancing self-efficacy for labour and birth.

DESIGN

A longitudinal grounded theory study.

METHODS

Semi-structured interviews were undertaken with women before they started yoga for pregnancy classes, after they had attended at least six classes, and finally, postnatally. Interview transcripts were analysed using constructive grounded theory and a self-efficacy framework.

SETTING

Three yoga for pregnancy teachers' classes in England.

PARTICIPANTS

Twenty two women attending yoga for pregnancy classes.

FINDINGS

Analysis of interviews with women at three time points led to a propositional theory that yoga for pregnancy enhances women's self-efficacy for labour by building their confidence and competence through a combination of techniques. These include repeated practice of a variety of pain management strategies, use of affirming language and the telling of positive labour stories, underpinned by yoga practice to lower somatic response to stress.

The association of exercise during pregnancy with trimester-specific and postpartum quality of life and depressive symptoms in a cohort of healthy pregnant women

Few published studies have examined the relationship between exercise during pregnancy, quality of life (QOL), and postpartum depressive symptoms in healthy pregnant women. A prospective cohort of 578 healthy pregnant women were followed during their pregnancy through 6 months postpartum. Levels of self-reported exercise and QOL before, during, and following pregnancy were assessed using standardized questionnaires during each trimester of pregnancy and 6 months postpartum. Depressive symptoms were assessed using the Edinburgh Postnatal Depression Scale (EPDS) at 28 weeks gestation and 6 weeks postpartum. Participants were classified as having "sufficient exercise" if they achieved at least 150 min of exercise per week. Sufficient exercisers reported significantly higher ratings on most domains of QOL during each trimester of pregnancy and in the postpartum follow-up, compared with insufficient exercisers. There were no significant between-group differences in depressive symptoms. In examining the impact of exercise during each trimester, active women who became sedentary during their third trimester demonstrated a decline in their QOL. Achieving recommended levels of exercise during pregnancy was associated with higher QOL during pregnancy and the postpartum in healthy pregnant women. Decreasing the amount of exercise during pregnancy was associated with reduced QOL. These results suggest that it may be important for health care professionals to counsel healthy pregnant women about both the benefits of being physically active during pregnancy, and to provide guidance on how to remain physically active during a healthy pregnancy.

Systematic review and meta-analysis of non-pharmacological interventions to reduce the symptoms of mild to moderate anxiety in pregnant women

AIM

To assess the effectiveness of non-pharmacological interventions for pregnant women with symptoms of mild to moderate anxiety.

BACKGROUND

Many pregnant women experience mild to moderate symptoms of anxiety and could benefit from additional support. Non-pharmacological interventions have been suggested for use during pregnancy.

DESIGN

A systematic review of randomized controlled trials.

DATA SOURCES

Randomized controlled trials published since 1990, identified from electronic databases: Medline; CINAHL; Maternity and Infant Care; PsycINFO; Cochrane Database of Systematic Reviews; CENTRAL; EMBASE; Centre for Reviews and Dissemination; Social Sciences Citation Index; ASSIA; HTA Library; Joanna Briggs Institute Evidence-Based Practice database; Allied and Complementary Medicine.

REVIEW METHODS

Conducted according to the Centre for Reviews and Dissemination procedure. Papers were screened (N = 5,222), assessed for eligibility (N = 57) and selected for inclusion (N = 25). The Cochrane Collaboration's tool for assessing risk of bias was used. Papers were assessed for clinical and statistical heterogeneity and considered for meta-analysis. Descriptive analysis of the data was conducted.

RESULTS

Psychological, mind-body, educational and supportive interventions were delivered individually and to groups of pregnant women over single or multiple sessions. The State-Trait Anxiety Inventory was the most commonly used anxiety measure. In 60% of studies there were fewer than 40 participants. Meta-analysis of three studies indicated no observed beneficial effect in the reduction of anxiety.

CONCLUSION

There was insufficient evidence from which to draw overall conclusions regarding the benefit of interventions. Results were predominantly based on small samples. Many papers provided an inadequate description of methods which prevented a full assessment of methodological quality.

The Efficacy of Yoga as a Form of Treatment for Depression

The purpose of this article was to systematically review yoga interventions aimed at improving depressive symptoms. A total of 23 interventions published between 2011 and May 2016 were evaluated in this review. Three study designs were used: randomized control trials, quasi-experimental, and pretest/posttest, with majority being randomized control trials. Most of the studies were in the United States. Various yoga schools were used, with the most common being Hatha yoga. The number of participants participating in the studies ranged from 14 to 136, implying that most studies had a small sample. The duration of the intervention period varied greatly, with the majority being 6 weeks or longer. Limitations of the interventions involved the small sample sizes used by the majority of the studies, most studies examining the short-term effect of yoga for depression, and the nonutilization of behavioral theories. Despite the limitations, it can be concluded that the yoga interventions were effective in reducing depression.

Stress regulation in drug-resistant epilepsy

The prevalence of psychological distress, especially depressive and anxiety disorders, is higher in epilepsy than in other chronic health conditions. These comorbid conditions contribute even more than epileptic seizures themselves to impaired quality of life in patients with epilepsy (PWE). The link between these comorbidities and epilepsy appears to have a neurobiological basis, which is at least partly mediated by stress through psychological and pathophysiological pathways. The impact of stress in PWE is also particularly important because it is the most frequently reported seizure trigger. It is therefore crucial for clinicians to take stress-related conditions and psychiatric comorbidities into account when managing PWE and to propose clinical support to enhance self-control of stress. Screening tools have been specially designed and validated in PWE for depressive disorders and anxiety disorders (e.g. NDDI-E, GAD-7). Other instruments are useful for measuring stress-related variables (e.g. SRRS, PSS, SCS, MHLCS, DSR-15, ERP-R, QOLIE-31) in order to help characterize the individual "stress profile" and thus orientate patients towards the most appropriate treatment. Management includes both pharmacological treatment and nonpharmacological methods for enhancing self-management of stress (e.g. mindfulness-based therapies, yoga, cognitive-behavioral therapies, biofeedback), which may not only protect against psychiatric comorbidities but also reduce seizure frequency.

Treating major depression with yoga: A prospective, randomized, controlled pilot trial

Background

Conventional pharmacotherapies and psychotherapies for major depression are associated with limited adherence to care and relatively low remission rates. Yoga may offer an alternative treatment option, but rigorous studies are few. This randomized controlled trial with blinded outcome assessors examined an 8-week hatha yoga intervention as mono-therapy for mild-to-moderate major depression.

Methods

Investigators recruited 38 adults in San Francisco meeting criteria for major depression of mild-to-moderate severity, per structured psychiatric interview and scores of 14–28 on Beck Depression Inventory-II (BDI). At screening, individuals engaged in psychotherapy, antidepressant pharmacotherapy, herbal or nutraceutical mood therapies, or mind-body practices were excluded. Participants were 68% female, with mean age 43.4 years (SD = 14.8, range = 22–72), and mean BDI score 22.4 (SD = 4.5). Twenty participants were randomized to 90-minute hatha yoga practice groups twice weekly for 8 weeks. Eighteen participants were randomized to 90-minute attention control education groups twice weekly for 8 weeks. Certified yoga instructors delivered both interventions at a university clinic. Primary outcome was depression severity, measured by BDI scores every 2 weeks from baseline to 8 weeks. Secondary outcomes were self-efficacy and self-esteem, measured by scores on the General Self-Efficacy Scale (GSES) and Rosenberg Self-Esteem Scale (RSES) at baseline and at 8 weeks.

Results

In intent-to-treat analysis, yoga participants exhibited significantly greater 8-week decline in BDI scores than controls (p-value = 0.034). In sub-analyses of participants completing final 8-week measures, yoga participants were more likely to achieve remission, defined per final BDI score ≤ 9 (p-value = 0.018). Effect size of yoga in reducing BDI scores was large, per Cohen’s d = -0.96 [95%CI, -1.81 to -0.12]. Intervention groups did not differ significantly in 8-week change scores for either the GSES or RSES.

Conclusion

In adults with mild-to-moderate major depression, an 8-week hatha yoga intervention resulted in statistically and clinically significant reductions in depression severity.

Trial registration

ClinicalTrials.gov NCT01210651

The effect of sukha pranayama on anxiety in patients undergoing coronary angiography: a single -blind randomized controlled trial

Introduction: Anxiety is among the most common problems experienced by coronary angiography (CA) candidates. Different modalities are used to manage anxiety. This study sought to examine the effects of a pranayama exercise on CA candidates’ anxiety.

Methods: This double-blind randomized controlled trial was undertaken in 2015 on 80 eligible patients. The patients were randomly allocated to a control and an experimental group. Before undergoing angiography, patients in the experimental group performed sukha pranayama exercises. They were trained to breathe slowly and rhythmically at a rate of ten breathing per minute for five consecutive minutes. Patients in the control group only received routine preangiography care. Data collection tools were a demographic questionnaire and the Spielberger State Anxiety Inventory. The level of patients’ anxiety in both groups was measured before, half an hour after, and one hour after the intervention. The data were analyzed through doing the independent-sample t and the chi-square tests.

Results: Before the intervention, the mean of anxiety score in the experimental group was 53.37, which significantly decreased to 40.75 after the intervention (P = 0.0001). In the control group, the mean of anxiety score decreased from 54.27 to 51.4. This decrease was not statistically significant. Moreover, between-group comparisons revealed significant differences between the groups regarding between-measurement mean differences of anxiety score (P < 0.01).

Conclusion: Sukha pranayama is effective in alleviating CA candidates’ anxiety.

Yoga-based pulmonary rehabilitation for the management of dyspnea in coal miners with chronic obstructive pulmonary disease: A randomized controlled trial

Background

Coal mine dust exposure causes chronic airflow limitation in coal miners resulting in dyspnea, fatigue, and eventually chronic obstructive pulmonary disease (COPD). Yoga can alleviate dyspnea in COPD by improving ventilatory mechanics, reducing central neural drive, and partially restoring neuromechanical coupling of the respiratory system.

Objectives

To evaluate the effectiveness of Integrated Approach of Yoga Therapy (IAYT) in the management of dyspnea and fatigue in coal miners with COPD.

Materials and methods

Randomized, waitlist controlled, single-blind clinical trial. Eighty-one coal miners (36–60 years) with stable Stages II and III COPD were recruited. The yoga group received an IAYT module for COPD that included asanas, loosening exercises, breathing practices, pranayama, cyclic meditation, yogic counseling and lectures 90 min/day, 6 days/week for 12 weeks. Measurements of dyspnea and fatigue on the Borg scale, exercise capacity by the 6 min walk test, peripheral capillary oxygen saturation (SpO₂%), and pulse rate (PR) using pulse oximetry were made before and after the intervention.

Results

Statistically significant within group reductions in dyspnea (P < 0.001), fatigue (P < 0.001) scores, PR (P < 0.001), and significant improvements in SpO₂% (P < 0.001) and 6 min walk distance (P < 0.001) were observed in the yoga group; all except the last were significant compared to controls (P < 0.001).

Conclusions

Findings indicate that IAYT benefits coal miners with COPD, reducing dyspnea; fatigue and PR, and improving functional performance and peripheral capillary SpO₂%. Yoga can now be included as an adjunct to conventional therapy for pulmonary rehabilitation programs for COPD patients.