Low Back Pain and Pelvic Girdle Pain in Pregnancy

Transitional pain services updates and a novel service for the obstetric population

PURPOSE OF THE REVIEW

This paper is an update of the publications on Transitional Pain Services and explores the viability of a dedicated transitional pain service for women.

RECENT FINDINGS

We address common pain pathologies establishing referral criteria, pathways, and effective strategies to decrease chronification of pain during pregnancy.

SUMMARY

This review highlights the importance establishing transitional pain service models at every institution and in particular in obstetric population as pain is normalized by Society during pregnancy.

Risk factors and nomogram construction for predicting women with chronic pelvic pain:a cross-sectional population study

Background

Chronic pelvic pain (CPP) in women is a critical challenge. Due to the complex etiology and difficulties in diagnosis, it has a greatly negative impact on women's physical and mental health and the healthcare system. At present, there is still a lack of research on the related factors and predictive models of chronic pelvic pain in women. Our study aims to identify risk factors associated with chronic pelvic pain in women and develop a predictive nomogram specifically tailored to high-risk women with CPP.

Materials and methods

From May to October 2022, trained interviewers conducted face-to-face questionnaire surveys and pelvic floor surface electromyography assessments on women from community hospitals in Nanjing. We constructed a multivariate logistic regression-based predictive model using CPP-related factors to assess the risk of chronic pelvic pain and create a predictive nomogram. Both internal and external validations were conducted, affirming the model's performance through assessments of discrimination, calibration, and practical applicability using area under the curve, calibration plots, and decision curve analysis.

Results

1108 women were recruited in total (survey response rate:1108/1200), with 169 (15.3 %) being diagnosed as chronic pelvic pain. Factors contributing to CPP included weight, dysmenorrhea, sexual dysfunction, urinary incontinence, a history of pelvic inflammatory disease, and the surface electromyography value of post-baseline rest. In both the training and validation sets, the nomogram exhibited strong discrimination abilities with areas under the curve of 0.85 (95 % CI: 0.81-0.88) and 0.85 (95 % CI: 0.79-0.92), respectively. The examination of the decision curve and calibration plot showed that this model fit well and would be useful in clinical settings.

Conclusions

Weight, dysmenorrhea, sexual dysfunction, history of urinary incontinence and pelvic inflammatory disease, and surface electromyography value of post-baseline rest are independent predictors of chronic pelvic pain. The nomogram developed in this study serves as a valuable and straightforward tool for predicting chronic pelvic pain in women.

Altered Abdominal Muscle Recruitment and Declined Physical Function in Postpartum Individuals With Pregnancy-Related Pelvic Girdle Pain: A Matched Case-Control Study

INTRODUCTION

The influence of pregnancy-related pelvic girdle pain (PPGP) on lumbopelvic muscles has not been comprehensively examined in postpartum individuals. Previous research also presented self-reported activity limitations without objective measures.

METHODS

Thirty postpartum individuals with PPGP (PPGP group) and 30 age-, parity-, and postpartum duration-matched asymptomatic individuals (healthy group) were recruited. Transabdominal ultrasonography was used to measure muscle thickness or activation changes of the external oblique (EO), internal oblique (IO), transverse abdominals, lumbar multifidus, and pelvic floor muscles (PFMs) during rest and while performing the active straight leg raise (ASLR). Muscle changes were compared separately in the painful and nonpainful sides between the PPGP and health control group. Physical function was assessed using the ASLR fatigue (ASLRF), timed up-and-go, and 6-m walking (6MW) tests.

RESULTS

The PPGP group had greater thickening changes in the bilateral IO during ASLR compared with the healthy group (nonpainful side, 16.34 vs 3.52 mm; P = .010; painful side, 18.83 vs 6.60 mm; P = .02) but became thinner in the EO (nonpainful side, -2.19 vs 19.97 mm; P < .001; painful side, -5.97 vs 21.43 mm; P < .001). Thicker IO and EO on the nonpainful side (IO, 6.60 vs 5.78 mm; P = .004; EO, 5.37 vs 4.54 mm; P = .011) and a lower bladder base (indication of PFMs) (91.87 vs 78.61 mm; P = .002) during rest were also observed in the PPGP group. Furthermore, the performance of the ASLRF and 6MW tests was poorer in the PPGP than in the healthy group (ASLRF nonpainful side, 82.36 vs 59.09 sec; P = .01; painful side, 75.73 vs 59.26 sec; P = .04; 6MW, 3.48 vs 3.17 sec; P = .02).

DISCUSSION

Postpartum individuals with PPGP demonstrated altered abdominal muscle recruitment strategies during loading tasks, with objectively impaired physical functions. These findings are critical for developing effective muscle training interventions for PPGP.

The association of back pain with physical inactivity and hypothyroidism in pregnant women

BACKGROUND

During pregnancy, structural and functional changes usually occur in the body, which has various consequences, including lower back pain (LBP) and hypothyroidism. One of the risk factors for these problems is physical inactivity.

OBJECTIVE

This study aimed to investigate the association of back pain and physical inactivity, weight gain, and hypothyroidism in pregnant women.

METHODS

In this cohort study, 420 pregnant women (26.333 ± 5.820 years old) were included. At first, participants answered this question: "Do you have any plans for pregnancy in the next month?" If the answer was yes, further evaluations were performed. The physical activity and pain intensity were measured by the International Physical Activity Questionnaire Short Form (IPAQ-S) and Visual Analogue Scale. Serum TSH was measured by automated chemiluminescence and commercial kits. Measurements were conducted before, the first, second, and third trimester of pregnancy.

RESULTS

Women reporting LBP were less engaged in physical activities and weight gained in the second and third trimesters of pregnancy was significantly higher than pregnant women without LBP (p< 0.05). TSH level and weight gained in pregnant women with low physical activity level was significantly higher than pregnant women with moderate and high physical activity (p< 0.05) (without significant difference in TSH and BMI). The physical inactivity (before: OR: 1.11 95% CI: 0.89 to 1.22; first trimester: OR: 1.09 95% CI: 1.02 to 1.59; second trimester: OR: 0.92 95% CI: 0.87 to 1.31; third trimester: OR: 1.12 95% CI: 1.02 to 1.39), TSH (OR: 0.85 95% CI: 0.57 to 1.29), and weight gain (second trimester: OR: 0.87 95% CI: 0.92 to 1.59; third trimester: OR: 1.44 95% CI: 1.02 to 1.98; p< 0.05) did predict increased pain intensity.

CONCLUSION

Using health-oriented approaches to increase physical activity and normalize thyroid function and weight gain during pregnancy can have beneficial effects on LBP.

History of pain around the lumbopelvic region during perinatal period: a prospective cohort study

PURPOSE

Many women experience pain around the low back and pelvic girdle during/after pregnancy. These pains have different risk factors and require independent management strategies. Therefore, an epidemiological database is required to understand when each type of pain occurs, and how serious it could be. Thus, the history of pain in the lumbopelvic region throughout the perinatal period was investigated.

METHODS

The information of 170 women recruited at the obstetrics and gynecology clinics in Japan was collected at 12, 24, 30, and 36 weeks of pregnancy, in the early days after childbirth, and one month after childbirth. The presence and severity of sacroiliac joint pain, pubic pain, groin pain, and low back pain were assessed using a numerical rating scale. Descriptive statistics were used to determine changes in the prevalence of pain. In addition, the change in the severity of each type of pain was observed through descriptive statistics, by including only those who had pain.

RESULTS

The sacroiliac joint pain showed a twofold increase from 12 to 24 weeks, while the pubic pain suddenly increased after 24 weeks. The severity of pubic and groin pain increased sharply during pregnancy. Regarding low back pain, the change in the severity was lesser than the other pains. The sacroiliac joint pain was the highest among the four pains during pregnancy.

CONCLUSION

Each type of pain had a different incidence rate and a different time of onset and aggravation. These results help women and health professionals to manage, and prevent these harmful symptoms.

Pregnancy-related pelvic girdle pain affects balance in the second and third trimesters of pregnancy

INTRODUCTION

During pregnancy, many changes in the musculoskeletal system and pregnancy-related disorders affect posture and postural stability. Pregnancy-related pelvic girdle pain (PPGP) is a common disorder in pregnancy; the cause remains unknown. The purpose of the present study was to determine if PPGP affects static postural stability and its relation to the stage of pregnancy.

METHODS

Sixty-three pregnant women between the ages of 18 and 45 and between the 12th and 38th weeks of gestation were included in the study. They were divided into four groups according on the trimester and the presence of PPGP. Static balance was assessed using a force plate on firm and compliant surfaces with eyes open and closed.

RESULTS

Pregnant women with PPGP had significantly (p < 0.05) greater centre-of-pressure velocity and sway area compared to pregnant women without PPGP, especially in the third trimester of pregnancy. In the second trimester, only two significant differences in COP parameters were observed between pregnant women with and without PPGP. Pregnant women in the third trimester of pregnancy had significantly (p < 0.05) greater centre-of-pressure velocity and larger postural sway area compared to pregnant women in the second trimester of pregnancy, regardless of PPGP.

DISCUSSION AND CONCLUSION

Pregnant women with PPGP had poorer static stability when compared to pregnant women without pain, especially in the third trimester of pregnancy. The cause could be found in the poorer ability to stabilise the trunk and pelvis, poorer proprioception, and issues with automatic movement patterns.

The association between musculoskeletal pain during pregnancy and pregnancy outcomes: A systematic review and meta-analyses

OBJECTIVE

To systematically investigate the association between musculoskeletal pain during pregnancy and birth outcomes including caesarean section, newborn birthweight, newborn birth length, and gestational age at birth.

METHODS

Medline, Embase, Web of Science, Cinahl and Scopus were systematically searched to identify eligible studies. Odds ratios, mean differences, and confidence intervals were used to describe results. Risk of Bias was assessed using the Newcastle-Ottawa Scale for observational studies. GRADE (The Grading of Recommendation Assessment, Development, and Evaluation) was used to assess the quality of each outcome.

RESULTS

Seven studies were included with a total population of 85,991 participants. There is low- quality evidence that pregnant women with musculoskeletal pain had 1.59 greater odds to experience delivery by caesarean section compared to those without musculoskeletal pain ([OR] 1.59, 95 % confidence interval [CI] 1.09 to 2.31). Both newborn birth weight (Mean Difference [MD] 77.79 g, 95 % [CI] -23.09 to 178.67) and newborn birth length ([MD] 0.55 cm, 95 % [CI] -0.47 to 1.56) were not affected by musculoskeletal pain, with very low-quality and low-quality evidence, respectively. There was moderate evidence that pregnant women with musculoskeletal pain had shorter gestational age (weeks), although the effect was small and possibly not clinically relevant ([MD] -0.41, 95 % [CI] -0.41 to -0.07).

CONCLUSION

Pregnant women experiencing musculoskeletal pain are at greater odds of delivering their babies via caesarean than those without musculoskeletal pain, however, musculoskeletal pain during pregnancy does not appear to affect newborn birth weight, length, or gestational age at birth.

Prevalence of lumbopelvic pain during pregnancy: A systematic review and meta-analysis of cross-sectional studies

INTRODUCTION

Lumbopelvic pain (LPP) is common in pregnant women and has a significant negative effect on physical and psychological health. In this study, for the first time, we conduct a meta-analysis to estimate the overall prevalence of LPP among pregnant women and clarify the reasons for the differences in the estimated results.

MATERIAL AND METHODS

A systematic search of four databases (PubMed, Embase, Web of Science and Cochrane Central Register of Controlled Trials) was conducted from inception until October 2022. Two reviewers conducted a methodological quality assessment. Random-effects model analysis was used to estimate the pooled prevalence and the 95% confidence interval. Chi-square tests and I2 -values were used to assess the heterogeneity. Subgroup analysis (according to the participants' continent, age, body mass index [BMI], gestational age and study risk of bias), sensitivity analysis and random-effects meta-regression were used to explore the the sources of heterogeneity.

RESULTS

Of the 1661 unique citations, 38 studies (21 533 pregnant participants) were included in this systematic review and meta-analysis. The overall pooled prevalence of LPP during pregnancy was 63% (95% CI: 0.57 to 0.69), with significant heterogeneity (I2  = 99.1%, P < 0.001). The prevalence differed by participants' continents, 71% (North America), 74% (South America), 63% (Asia), 64% (Europe), 59% (Africa) and 45% (Oceania). The prevalence differed by BMI, 64% (BMI <25), 64% (25 ≤ BMI ≤ 28), and 71% (BMI >28). The prevalence differed by age, 72% (age <25 years), 58% (25 ≤ age ≤ 30 years), and 69% (age >30 years). The prevalence were the same differed by study risk of bias, 63% (both low and moderate risk of bias studies). The prevalence were similar by gestational age, 62% (second trimester) and 63% (third trimester).

CONCLUSIONS

Lumbopelvic pain during pregnancy is common; about three-fifths of pregnant women experience LPP. More prevention and intervention research for lumbopelvic should be conducted in pregnant women with different clinical characteristics.

Examining the factors influencing postpartum musculoskeletal pain: a thorough analysis of risk factors and pain assessment indices

BACKGROUND

Musculoskeletal disorders after childbirth are common, but current studies often have a narrow focus, concentrating on particular areas and neglecting a thorough evaluation of pain locations and overall severity. This research aimed to determine the occurrence, spread, severity, and root causes of musculoskeletal discomfort in females during the 6-8 week period after giving birth, focusing on investigating the link between pain and posture.

METHODS

This study collected data from 432 postpartum women, 6-8 weeks post-delivery, focusing on ten posture angles captured photographically and analysed using Exbody software. Participants also filled out structured questionnaires on pregnancy history, the Short Form McGill Pain Questionnaire (SF-MPQ) scores, physical activity patterns, and involvement in household and neonatal care tasks.

RESULTS

In our research, 49.8% of the respondents experienced pain after childbirth in different regions of their bodies. Utilising SF-MPQ, the mean Pain Rating Index was 7.35 (SD = 5.93) and Present Pain Intensity and Visual Analog Scale was 3.13 (SD = 2.09). Among the evaluated postural angles, only the Q-angle exhibited a noteworthy correlation with knee discomfort. Individuals with less involvement in household and newborn care tasks had a significantly lower occurrence of postpartum pain, with a decrease of 76% (OR = 0.243, p = 0.001). Similarly, those who shared these responsibilities had a 53% decreased likelihood (OR = 0.468, p = 0.008) of experiencing postpartum pain.

CONCLUSION

Many postpartum women experience moderate-intensity pain in various body regions. Pain's correlation with posture was limited. Reducing physical strain during infant care notably decreased postpartum pain, underscoring the need for holistic support for postpartum women.

Significance of Physical Exercise in Pregnancy: Comparison of Short and Long Exercise Programs

BACKGROUND

Several musculoskeletal changes occur in pregnancy, particularly in the abdominal region. The aim of this study was to search and compare the effects of long (LEP) and short exercise programs (SEP) in terms of the satisfaction of the needs of pregnant women.

METHODS

This study consisted of 2 groups: LEP (n=16) and SEP (n=16). Muscle thickness measurements determined by ultrasound, the 6 minute walk test, Pregnancy Physical Activity Questionnaire, Visual Analogue Scale, Oswestry Disability Index, and Short Form-36 Quality of Life Questionnaire were the study variables. Evaluations were done at the 16th (baseline), 24th, and 32nd gestational weeks. The LEP consisted of 20 and the SEP consisted of 9 exercises, which were applied for 16 weeks until the 32nd gestational week.

RESULTS

Emotional role limitation and pain scores of quality of life, 6 minute walk test, and occupational physical activity were found to be better in the LEP group at the 24th gestational week (p=0.043, p=0.049, p=0.049, p=0.026). At the 32nd gestational week, the 6 minute walk test and occupational physical activity were found to be higher in the LEP group (p=0.006, p=0.017). Additionally, rectus abdominis and bilateral diaphragm muscle thicknesses, "moderate intensity and sports physical activity" and "vitality and emotional well-being" were increased over time with the LEP (p+<+0.05 for all). On the other hand, unilateral diaphragm muscle thickness, sports physical activity level, and vitality were improved with the SEP (p+<+0.05 for all).

CONCLUSIONS

The SEP and LEP both have beneficial effects in pregnant women. However, the LEP increases physical activity level, functional capacity, and quality of life more than the SEP during the later stages of pregnancy.

The correlation between pregnancy-related low back pain and physical fitness evaluated by an index system of maternal physical fitness test

To investigate incidence of pregnancy-related low back pain (LBP), evaluate physical fitness objectively during pregnancy and analyze the correlation between LBP and physical fitness of pregnant women, 180 pregnant women including 101 in mid-gestation (14-28 gestational weeks) and 79 in late-gestation (28-37 gestational weeks) were recruited and self-reported their LBP. The aerobic ability such as cardiorespiratory fitness and anaerobic ability including strength, endurance, speed, flexibility, and balance were evaluated by a novel materal physical fitness test system. The correlation between LBP and each component in physical fitness test system was analyzed in SPSS. As the results, 135 out of 180 participants (75% of total) had pregnancy-related LBP. Physical fitness of participants in late-gestation was significantly weaker including weaker back strength (p<0.05), less resistance band pullbacks in 30s (p<0.01), less stretching in sit-and-reach test (p<0.001), shorter duration in left legged blind balance test (p<0.05) and weaker bird dog balance(p<0.05) than those in mid-gestation. Correlation analysis indicated that LBP was negatively associated with standing heel raises in 20s (p<0.01) and standing glute kickbacks in 30s (left p<0.01, right p<0.05). Thus, it is concluded that LBP is in high prevalence throughout the entire pregnant course. The pregnant women are prone to have weakened strength of core muscle groups and poorer flexibility and balance along the pregnancy. In addition, their LBP was negatively correlated to strength of back muscle groups of lower limbs.

Is the function of the core muscles affected during pregnancy?

INTRODUCTION AND HYPOTHESIS

The aim of our study is to examine the changes in core muscle functions during pregnancy.

METHODS

Our study was carried out in 67 primigravida pregnant women. Superficial electromyography (EMG) and non-invasive 2D/3D ultrasonography (USG) were used to evaluate core muscle (diaphragm, transversus abdominus [TA], internal oblique [IO]-external oblique [EO] muscles, pelvic floor muscles, multifidus) function during pregnancy. Pelvic floor muscle strength was also measured by a digital palpation method (PERFECT system). USG was used to measure expected fetal weight and the diastasis recti (DR) distance. Mann-Whitney U test was used to show changes in trimesters in the core muscles, and Spearman correlation analysis was used to determine the relationship.

RESULTS

In the third trimester, an nonsignificant increase in EMG parameters was observed in all of the core muscles. Although a statistically significant decrease was observed in muscle thickness values measured by EO and IO USG in the third trimester, DR was found to increase at all levels (p < 0.005). When we evaluated both trimesters and all pregnant women together, no relationship was found between all core muscles and pelvic floor muscles in the data evaluated by EMG and USG. We found a negative correlation in USG values between fetal weight and IO and the upper part of the rectus abdominus muscle, and a positive correlation between the EMG data of the EO and rectus abdominus muscles.

CONCLUSIONS

In women, the coactivation relationship between the core muscles may disappear during pregnancy. As the trimesters progress during pregnancy, a decrease in thickness and an increase in muscle activity can be observed in the core muscles. Pregnant women can be given exercise training for core muscles for protection in both the prenatal and postnatal periods. But more research needs to be done.

Prevalence and course of pregnancy symptoms using self-reported pregnancy app symptom tracker data

During pregnancy, almost all women experience pregnancy-related symptoms. The relationship between symptoms and their association with pregnancy outcomes is not well understood. Many pregnancy apps allow pregnant women to track their symptoms. To date, the resulting data are primarily used from a commercial rather than a scientific perspective. In this work, we aim to examine symptom occurrence, course, and their correlation throughout pregnancy. Self-reported app data of a pregnancy symptom tracker is used. In this context, we present methods to handle noisy real-world app data from commercial applications to understand the trajectory of user and patient-reported data. We report real-world evidence from patient-reported outcomes that exceeds previous works: 1,549,186 tracked symptoms from 183,732 users of a smartphone pregnancy app symptom tracker are analyzed. The majority of users track symptoms on a single day. These data are generalizable to those users who use the tracker for at least 5 months. Week-by-week symptom report data are presented for each symptom. There are few or conflicting reports in the literature on the course of diarrhea, fatigue, headache, heartburn, and sleep problems. A peak in fatigue in the first trimester, a peak in headache reports around gestation week 15, and a steady increase in the reports of sleeping difficulty throughout pregnancy are found. Our work highlights the potential of secondary use of industry data. It reveals and clarifies several previously unknown or disputed symptom trajectories and relationships. Collaboration between academia and industry can help generate new scientific knowledge.

Standardized Stretching Postural postures to treat low-back pain in pregnancy: the GEMALODO randomized clinical trial

BACKGROUND

Two-thirds of pregnant women suffer from low-back pain during pregnancy, which leads to negative effects on quality of everyday life. According to the literature, an 8- to 12-week program of adapted physical activity during pregnancy has proven its efficacy in treatment of low-back pain and functional disability. Stretching Postural is a nondynamic technique using muscular contractions and stretches that act mainly on the back and that can be practiced alone.

OBJECTIVE

This study aimed to assess the effect of an 8-week program of standardized Stretching Postural postures in low-risk pregnant women suffering from low-back pain.

STUDY DESIGN

This was an open-label, randomized, controlled trial in 1 French university hospital. Women with a singleton low-risk pregnancy between 15 and 32 weeks of gestation and with back, lumbar, or sacroiliac pain were randomly assigned (1:1) to either undergo an 8-week program of standardized Stretching Postural with basic advice (intervention group) or to receive basic advice only (control group). Both groups received ergonomic advice and encouragement to practice physical activity. The primary endpoint was the pain assessment at 8 weeks (defined by the mean pain level estimated by women in the previous week, scored on a numeric scale from 0 to 10). Secondary endpoints were pain after 4 weeks of follow-up, quality of life (12-item Short Form Survey), satisfaction (Patient Global Impression of Change), and delivery outcomes. The main analysis was intention-to-treat.

RESULTS

From January 2019 to August 2020, 60 women were randomized: 30 were assigned to the intervention group and 30 to the control group. The mean level of pain at 8 weeks was significantly lower in the intervention group than in the control group (1.6±1.4 vs 4.1±2.2; P<.01). The mean 12-item Short Form Survey scores were significantly higher in the posture group than in the control group (Physical Component Score, 45.7±7.8 vs 37.4±8.5; P<.01; Mental Component Score, 54.3±5.8 vs 50.4±7.1; P=.04), and the Patient Global Impression of Change score was also significantly higher (6.1±1.5 vs 3.9±2.3; P<.01). No adverse effects were found.

CONCLUSION

Stretching Postural appears to be a safe and efficient nondrug therapy to treat low-back pain during low-risk pregnancy.

Influence of Osteopathic Manipulative Treatment on the Quality of Life and the Intensity of Lumbopelvic Pain in Pregnant Women in the Third Trimester: A Prospective Observational Study

During pregnancy, the various changes women undergo can affect their health status. Manual therapies are important aids because they do not use medication. This study aimed to evaluate the influence of osteopathic manipulative treatment on the intensity of lumbar and pelvic pain and changes in quality of life. This prospective study included women over 18 years old and between 27 and 41 weeks pregnant, and excluded women with fetal malformations, multiple fetuses, premature rupture of membranes, and in labor. Forty-six pregnant women were selected and divided into two groups of ≤3 and ≥4 visits. Statistically significant improvements were observed in the intensity of maximum low back pain (7.54 ± 1.47 vs. 3.815 ± 1.73, p ≤ 0.01) and minimum low back pain (5.67 ± 2.03 vs. 3.111 ± 1.67, p ≤ 0.01), maximum pelvic pain (6.54 ± 2.22 vs. 2.77 ± 1.64, p = 0.01), and minimum pelvic pain (5.615 ± 2.21 vs. 2.615 ± 1.66, p = 0.01). Both groups achieved improvements in quality of life indices, with the improvements achieved by the ≥4-visits group being statistically significant. Osteopathic treatment was effective in reducing the intensity of lumbar and pelvic pain and in improving the quality of life of pregnant women in the third trimester.

Ultrasound Assessment of Abdominal Muscle Thickness With and Without Lumbopelvic Pain in Pregnant Women

OBJECTIVES

Lumbopelvic pain (LPP) is a very common cause of discomfort during pregnancy, but its etiology remains unclear. The association between abdominal muscle thickness and LPP in pregnant women has not been studied extensively, despite the significant abdominal changes that occur during pregnancy. This study aimed to examine the relationship between abdominal muscle thickness and LPP in pregnant women.

METHODS

In this study, 49 pregnant women in their second trimester participated. The intensity of LPP was assessed using a numerical rating scale. Ultrasound imaging was used to measure the thickness of abdominal muscles, including the rectus abdominis, external oblique, internal oblique, and transversus abdominis muscles. Participants were classified into two groups, the LPP group and non-LPP group, and the abdominal muscle thickness was compared between the two groups. The statistical significance level was set at P < .05.

RESULTS

There were 24 and 25 participants in the LPP and non-LPP groups, respectively. Internal oblique (IO) thickness was significantly thinner in the LPP group than in the non-LPP group (5.4 ± 0.2 mm versus 6.1 ± 0.2 mm; P = .042). Multivariate logistic regression analysis showed that IO thickness was significantly associated with LPP (odds ratio, 0.516; 95% confidence interval, 0.284-0.935; P = .019).

CONCLUSIONS

This study suggested that LPP in second trimester pregnancy might be related to IO thickness. Further longitudinal studies are needed to understand the role of this muscle as an LPP risk factor for pregnant women.

Focus on the impact of social factors and lifestyle on the disease burden of low back pain: findings from the global burden of disease study 2019

BACKGROUND

Low back pain (LBP) is one of the leading causes of disability worldwide. Differences in social backgrounds and lifestyles in various regions and countries may contribute to the discrepancies in the disease burden of LBP.

METHODS

Based on the GBD 2019, we collected and analyzed numbers and age-standardized rates (ASR) of LBP disability-adjusted life years (DALYs). Temporal trends in ASR were also analyzed using estimated annual percentage change (EAPC). The Age-period-cohort (APC) model was used to estimate age, period and cohort trends in DALYs of LBP. An autoregressive integrated moving average (ARIMA) model was used to forecast DALYs of LBP trends from 2020 to 2035.

RESULTS

The DALYs due to LBP increased from 1990 to 2019. The APC model showed that the risk of DALYs for global LBP increased with age and year and that the risk of DALYs was lower in the later-born cohort than in the earlier-born cohort. The main risk factors which GBD estimates were available for DALYs of LBP include smoking, occupational ergonomic factors and high BMI. It is expected that DALYs of LBP will continue to rise until 2035.

CONCLUSION

From 1990 to 2019, the global disease burden of LBP remained high. It is necessary to pay attention to the influence of social factors and lifestyle on LBP. Focusing on the impact of social factors as well as lifestyle on the prognosis of LBP and targeting interventions may further reduce the disease burden of LBP.

Effect of Core Stabilization Exercises on Pain, Functional Disability, and Quality of Life in Pregnant Women With Lumbar and Pelvic Girdle Pain: A Randomized Controlled Trial

OBJECTIVE

The purpose of this study was to assess the effect of adding core stability to usual care for pregnant women with lumbar and pelvic girdle (LPG) pain.

METHODS

This was a repeated-measures design randomized controlled trial with blinded outcome assessors. Thirty-five pregnant women with LPG pain were recruited from prenatal health care providers. They were allocated to 2 study groups to receive either usual prenatal care (control group, n = 17) or usual care with core stability exercises focusing on the pelvic floor muscles and deep abdominal muscles (exercise group, n = 18) for 10 weeks. The visual analog scale, score on the Oswestry Disability Index, and the World Health Organization's Quality of Life Brief Version (WHOQOL-BREF) were evaluated with analysis of variance at pre-intervention, post-intervention, at the end of pregnancy, and 6 weeks after childbirth.

RESULTS

There was a statistically significant interaction of group and time for all outcome measures except for the Social category (P = .18) in the WHOQOL-BREF questionnaire. The analysis of the group within time showed that mean scores in the exercise group were substantially improved at the post-intervention, end of pregnancy, and 6-week follow-up evaluation, except in the Environment category (end of pregnancy: P = .36; 6-week follow-up: P = .75) in the WHOQOL-BREF questionnaire.

CONCLUSION

The results of this study indicate that the addition of core stability exercises was more effective than the usual care alone in pain relief, improving disability, and quality of life of pregnant women with LPG pain.

Effects of Conventional Exercises on Lower Back Pain and/or Pelvic Girdle Pain in Pregnancy: A Systematic Review and Meta-Analysis

Pregnant women frequently complain of low back discomfort associated with their pregnancies. On their quality of life, it could have a detrimental effect. Pregnancy-related low back pain (LBP) and pelvic girdle pain (PGP) are associated with substantial direct and indirect expenditures. Evidence addressing strategies to treat and prevent these illnesses needs to be clarified. This review aimed to examine the connection between exercise, LBP, and PGP. To find relevant studies (in the English language) that matched the inclusion and exclusion criteria, a systematic search of peer-reviewed literature was carried out using the Cochrane Database of Systematic Reviews, the Cochrane Central Register of Controlled Trials, Scopus, the Web of Science, Pub Med, and ClinicalTrials.Gov. The publishing window was limited to the previous 10 years (2012-2022). Utilizing Review Manager version 5.4 (The Nordic Cochrane Centre, The Cochrane Collaboration, Copenhagen), the results were examined. JADAD ratings were used to evaluate the quality of the included studies. To analyze the endpoints, the mean, standard mean difference (SMD), and 95% confidence intervals (CI) were determined. We chose 16 randomized controlled trials (RCTs) that included 1885 pregnant individuals with pelvic girdle and/or lower back discomfort. The combined data showed that the exercise group had lower VAS scores than the control group. The final result, however, did not significantly differ. Most of the studies had high JADAD scores, ranging from 3 to 5 points. Lower back pain and/or pelvic girdle discomfort during pregnancy are not influenced by exercise; however, women who are provided with a regular exercise program appear to manage the condition effectively with improved functional status.

Pain Severity and Pain Interference in Late Pregnancy: An Analysis of Biopsychosocial Factors Among Women Scheduled for Cesarean Delivery

OBJECTIVE

Pain is a variably experienced symptom during pregnancy, and women scheduled for cesarean delivery, an increasingly common procedure, are a relatively understudied group who might be at higher pain risk. Although biopsychosocial factors are known to modulate many types of chronic pain, their contribution to late pregnancy pain has not been comprehensively studied. We aimed to identify biopsychosocial factors associated with greater pain severity and interference during the last week of pregnancy.

METHODS

In this prospective, observational study, 662 pregnant women scheduled for cesarean delivery provided demographic and clinical information and completed validated psychological and pain assessments. Multivariable hierarchical linear regressions assessed independent associations of demographic, clinical, and psychological characteristics with pain severity and pain interference during the last week of pregnancy.

RESULTS

Women in the study had a mean age of 34 years, and 73% identified as White, 11% as African American, 10% as Hispanic/Latina, and 6% as Asian. Most women (66%) were scheduled for repeat cesarean delivery. Significant independent predictors of worse pain outcomes included identifying as African American or Hispanic/Latina and having greater depression, sleep disturbance, and pain catastrophizing. Exploratory analyses showed that women scheduled for primary (versus repeat) cesarean delivery reported higher levels of anxiety and pain catastrophizing.

CONCLUSIONS

Independent of demographic or clinical factors, psychological factors, including depression, sleep disturbance, and pain catastrophizing, conferred a greater risk of late pregnancy pain. These findings suggest that women at higher risk of pain during late pregnancy could benefit from earlier nonpharmacological interventions that concurrently focus on psychological and pain symptoms.

Pelvic Girdle Pain in Pregnancy: A Review

Importance

Pelvic girdle pain is often thought to be a recent phenomenon, but this condition was described as early as 400 BC by Hippocrates. Despite being identified for years, confusion continues about the definition and management of this ailment affecting many pregnancies.

Objective

The purpose of the review is to assess the incidence, etiology, pathophysiology, risk factors, diagnosis, management, and pregnancy outcomes/recovery of current pregnancies, and outcomes of future pregnancies complicated by pelvic girdle pain.

Evidence Acquisition

Electronic databases (PubMed and Embase) were searched from 1980 to 2021 with the only limitation being that the articles were in English. Studies were selected that examined associations between pelvic pain/pelvic girdle pain and pregnancy.

Results

There were 343 articles identified. After reviewing the abstracts, 88 were used in this review. Pelvic girdle pain is a common condition of pregnancy, affecting a reported 20% of pregnant women. The pathophysiology is poorly understood and likely multifactorial, involving both hormonal and biomechanical changes that occur during pregnancy. Several risk factors have been identified. This diagnosis is most commonly made based on symptoms related to pelvic pain during pregnancy. Treatment should be multimodal, including pelvic girdle support, stabilizing exercises, analgesia, and potentially complementary therapies. The effects on future pregnancies are uncertain, although some limited information suggests an increased risk of recurrent PGP in subsequent pregnancies.

Conclusions

Pelvic girdle pain in pregnancy is a common condition that is often overlooked as a normal part of pregnancy but has a significant impact on quality of life during, after, and in subsequent pregnancies. Multimodal therapies are available and are largely low cost and noninvasive.

Relevance

Our aim is to increase the awareness of pelvic girdle pain in pregnancy as a common but often underdiagnosed and undertreated condition.

Enhancing Ergonomics in Pediatric Endoscopy Training and Practice

Pediatric endoscopists are at risk of work-related injuries from overuse and repetitive motions during endoscopy. Recently, there has been increasing appreciation for the importance of ergonomics education and training to help build long-term habits that prevent injury. This article reviews the epidemiology of endoscopy-related injuries in pediatric practice, describes methods for controlling exposures in the workplace, discusses key ergonomic principles that can be used to mitigate injury risk, and outlines tips for integrating education on endoscopy ergonomics during training.

The association between adverse childhood experiences and peripartal pain experience

ABSTRACT

Adverse childhood experiences (ACEs) are associated with altered ongoing and evoked pain experiences, which have scarcely been studied for the peripartum period. We aimed to investigate how ACEs affect pain experience in pregnancy and labor. For this noninterventional trial with a short-term follow-up, pregnant women were divided into a trauma group (TG) with ACEs (n = 84) and a control group (CG) without ACEs (n = 107) according to the Childhood Trauma Questionnaire. Pain experience in pregnancy and labor was recorded by self-report and the German Pain Perception Scale. Pain sensitivity prepartum and postpartum was assessed by Quantitative Sensory Testing and a paradigm of conditioned pain modulation (CPM), using pressure pain thresholds (PPTs) and a cold pressor test. The TG showed higher affective and sensory scores for back pain and a more than doubled prevalence of preexisting back pain. Pelvic pain differences were nonsignificant. The TG also exhibited increased affective scores (1.71 ± 0.15 vs 1.33 ± 0.11), but not sensory scores for labor pain during spontaneous delivery. There were no group differences in prepartum pain sensitivity. While PPTs increased through delivery in the CG (clinical CPM), and this PPT change was positively correlated with the experimental CPM (r = 0.55), this was not the case in the TG. The association of ACEs with increased peripartal pain affect and heightened risk for preexisting back pain suggest that such women deserve special care. The dissociation of impaired clinical CPM in women with ACEs and normal prepartum experimental CPM implies at least partly different mechanisms of these 2 manifestations of endogenous pain controls.

Lumbopelvic pain and sick leave during pregnancy: A comparison of Italy and Norway

BACKGROUND

Pregnancy-related lumbopelvic pain is a frequently reported musculoskeletal disorder, but few studies have compared data between countries.

OBJECTIVES

Examine prevalence, severity, and sick leave and explore potential risk factors associated with pregnancy-related lumbopelvic pain in Italian women and compare the results to a similar study in Norway, utilizing the same questionnaire.

DESIGN

Cross-sectional.

METHODS

Italian (n = 481) and Norwegian women (n = 435) were allocated from two public hospitals in Rome (Fatebenefratelli San Giovanni Calibita-Isola Tiberina) and Oslo (Oslo University Hospital), as well as four antenatal clinics in Modena (Italy). The questionnaire was completed between gestation weeks 32 and 36, addressing women's experiences of pregnancy-related lumbopelvic pain and sick leave in current week, and retrospectively for prepregnancy, first and second trimesters.

RESULTS

In Italy and Norway, 39% and 57% of pregnant women reported pregnancy-related lumbopelvic pain, respectively, with 11% and 25% experiencing severe pregnancy-related lumbopelvic pain. Pregnancy-related lumbopelvic pain was associated with sick leave in Norway (p < 0.01), but not in Italy (p = 0.66) at late gestation. In both countries, women with pregnancy-related lumbopelvic pain versus those with no pregnancy-related lumbopelvic pain were more likely to be multiparous (Italy: 40% versus 31%, p = 0.06 and Norway: 53% versus 38%, p < 0.01), and have gestational weight gain above guidelines (Italy: 21% versus 13%, p = 0.02% and Norway: 27% versus 14%, p < 0.01) and previous experience of pregnancy-related lumbopelvic pain (Italy: 15% versus 2%, p < 0.01 and Norway: 31% versus 4%, p < 0.01). Maternal exercise (⩾2 times weekly) was associated with less pregnancy-related lumbopelvic pain (Italy: odds ratio = 0.33, 95% confidence interval = 0.11-1.0, p = 0.05 and Norway: odds ratio = 0.55, 95% confidence interval = 0.29-1.0, p = 0.06).

CONCLUSION

We observed high rates of pregnancy-related lumbopelvic pain in Italy and Norway, with Norwegian women reporting the highest prevalence and severity level. While both countries had similar rates of sick leave in late gestation, an association between pregnancy-related lumbopelvic pain and sick leave was observed among Norwegian women only. Health care providers should be proactive in addressing pregnancy-related lumbopelvic pain through open communication and seeking input from pregnant individuals. However, it is essential to acknowledge that the current evidence on effective treatments remains limited and inconclusive, highlighting the need for further research in this field.

Gebelik Dönemindeki Potansiyel Kas-İskelet Sistemi Sorunları

Gebelik sırasında kadınlarda çeşitli fizyolojik ve anatomik değişiklikler meydana gelmektedir. Bu biyomekanik, hormonal ve vasküler değişiklikler gebelik ilerledikçe belirginleşmektedir. Kas-iskelet sistemi bu değişimlerden en çok etkilenen sistemlerden biridir. Gebelikle ilişkili kas-iskelet sistemi problemlerinin başında bel ağrısı gelmekte ve bunu sırt ağrısı, el-el bilek ağrısı ve kalça ağrısı takip etmektedir. Gebelikle ilişkili bu problemlerin çoğu gebelikten sonraki aylarda düzelmektedir. Ancak bazı gebelerde ciddi ağrı ve dizabiliteye neden olmaktadır. Bu nedenle, gebelik döneminde görülen kas-iskelet sistemi problemlerinin erken tanınması, koruyucu önlemlerin alınması ve bireysel tedavinin planlanması önemlidir. Bu yazıda, gebelik döneminde görülen kas-iskelet sistemi değişiklikleri, sık görülen patolojiler ve bu problemlerin tedavisi ile ilgili güncel literatürün gözden geçirilmesi amaçlanmaktadır.

Cross-Cultural Adaptation and Validation of the Pregnancy Mobility Index for the Italian Population: A Cross-Sectional Study

INTRODUCTION

Pregnancy is a specific condition that modifies the mobility of women. In this population, it seems important to use specific tools to properly assess them. The Pregnancy Mobility Index (PMI) was created in 2006 with the aim of assessing mobility in pregnant women. The goal of this study was to translate, adapt, and evaluate the statistical properties of the questionnaire in the Italian pregnant population.

METHODS

The PMI underwent translation and transcultural adaptation. Reliability and concurrent validity, compared to the Oswestry Disability Index (ODI), was investigated on a sample of pregnant women. An ANOVA was performed to detect differences in the PMI score considering the Body Mass Index (BMI) and age of the sample.

RESULTS

The PMI was forward translated, back translated, and transculturally adapted. A consensus meeting accepted the final version of the questionnaire. The PMI was given to 93 pregnant women. PMI showed excellent reliability for every item and the total score (Cronbach's alpha of 0.945). Concurrent validity compared with ODI items 2-9 was strong considering the total score, with r = 0.726, but moderate comparing the first item of the ODI and the total score of the PMI, r = 470, and considering the total score of both questionnaires (r = 0.683). The ANOVA showed statistical difference in pregnant women with lower BMI for every subscale and total score of PMI (p = 0.009) and for outdoor mobility considering age (p = 0.019).

CONCLUSIONS

The PMI seems to be a valid and reliable tool to assess mobility in the pregnant population. Pregnant women with a lower BMI showed a greater mobility score in the PMI. In turn, younger pregnant women presented a lower mobility score compared to older pregnant women.

Best-Practice Recommendations for Chiropractic Care for Pregnant and Postpartum Patients: Results of a Consensus Process

OBJECTIVE

The purpose of this project was to develop a best-practices document on chiropractic care for pregnant and postpartum patients with low back pain (LBP), pelvic girdle pain (PGP), or a combination.

METHODS

A modified Delphi consensus process was conducted. A multidisciplinary steering committee of 11 health care professionals developed 71 seed statements based on their clinical experience and relevant literature. A total of 78 panelists from 7 countries were asked to rate the recommendations (70 chiropractors and representatives from 4 other health professions). Consensus was reached when at least 80% of the panelists deemed the statement to be appropriate along with a median response of at least 7 on a 9-point scale.

RESULTS

Consensus was reached on 71 statements after 3 rounds of distribution. Statements included informed consent and risks, multidisciplinary care, key components regarding LBP during pregnancy, PGP during pregnancy and combined pain during pregnancy, as well as key components regarding postpartum LBP, PGP, and combined pain. Examination, diagnostic imaging, interventions, and lifestyle factors statements are included.

CONCLUSION

An expert panel convened to develop the first best-practice consensus document on chiropractic care for pregnant and postpartum patients with LBP or PGP. The document consists of 71 statements on chiropractic care for pregnant and postpartum patients with LBP and PGP.

Effectiveness of motor control exercises versus other musculoskeletal therapies in patients with pelvic girdle pain of sacroiliac joint origin: A systematic review with meta-analysis of randomized controlled trials

BACKGROUND

Pelvic girdle pain represents a group of musculoskeletal pain disorders associated with the sacroiliac joint and/or the surrounding musculoskeletal and ligamentous structures. Its physical management is still a serious challenge as it has been considered the primary cause of low back pain.

OBJECTIVE

This review sought to determine the effectiveness of motor control exercises for two clinically relevant measures; i.e., pain and disability, on patients with pelvic girdle pain of sacroiliac joint origin.

METHODS

This review covered only randomized controlled studies. Online databases, such as PubMed, Embase, Scopus, and Cochrane Library, were searched from January 1, 1990, to December 31, 2019. PEDro scale was used to assess the methodological quality of included studies, while Review Manager was employed to synthesize data in view of meta-analysis. The PRISMA guidelines were applied for this review.

RESULTS

Twelve randomized controlled trials of moderate-to-high quality were included in this review. The studies involved 1407 patients with a mean age ranging from 25.5 to 42.1 years as well as intervention and follow-up durations from 1 week to 2 years. Motor control exercises alone for pelvic girdle pain of sacroiliac joint origin were not effective in terms of pain reduction (SMD = 0.29 [-0.64,1.22]) compared to control interventions whereas they were slightly effective in terms of disability reduction (SMD =-0.07 [-0.67, 0.53]) at short-term. The combination of motor control exercises with other musculoskeletal therapies, however, revealed to be more effective than control interventions in terms of pain reduction (SMD =-1.78 [-2.49, -1.07]; 95%CI) and lessened disability (SMD =-1.80 [-3.03, -0.56]; 95%CI) at short-term.

CONCLUSION

Motor control exercises alone were not found to be effective in reducing pain at short-term. However, their combination with other musculoskeletal therapies revealed a significant and clinically-relevant decrease in pain and disability at short-term, especially in peripartum period.

Level of activity limitations and predictors in women with pregnancy-related pelvic girdle pain: Prospective cross-sectional study

Background

For many pregnant women, pelvic girdle pain caused by pregnancy has an impact on their daily living. Women with lumbo-pelvic pain have moderate to severe discomfort that makes daily activities like getting out of a chair, bending, and walking difficult. The aim of this study was to determine the extent of daily activity restrictions and to discover predictors of pregnancy-related pelvic girdle pain.

Study design

Prospective cross-sectional study.

Methods

This prospective cross-sectional study was undertaken from January October 2018 to October 29/2019 among 337 gravid mothers with pregnancy-related limbo-pelvic pain. A structured questionnaire adapted from the activity limitation-related pelvic girdle pain questionnaire was used for data collection. Epi-info version 7.1 for data entry and STATA version 14 for statistical analysis were used. Ordinal regression with an odds ratio of 95% confidence interval and p-value < 0.05 were cast-off to assess the association between the outcome and dependent variables.

Results

Among 324 pregnant women with pelvic girdle pain 96 (29.6%) had small extent level of activity limitation, 185 (57.1%) had moderate activity limitation, and 43 (13.3%) large extent level of activity limitation. Having previous children (AOR = 0.37, 95% CI:0.14, 0.98), occupation (AOR = 1.77, 95% CI: 1.06, 2.95) and taking alcohol (AOR = 0.43, 95% CI: 0.19, 0.99) were the independent predictors for activity limitation.

Conclusion

Nearly one-third of the participants had a modest degree of activity restriction, while more than half of the pregnant women with PPGP had a moderate to high level of restriction. Previous children, occupation, and alcohol consumption were all independent predictors of activity limitation among pregnant women.

•

PGP and LBP are commonly reported by pregnant women all over the world.

•

Women's during pregnancy reported limitations in activities of daily life.

•

One-third of the pregnant women with PPGP had a modest degree of activity restriction.

•

More than half of the pregnant women with PPGP had a moderate to high level of restriction.

•

Having children, occupation, and alcohol consumption were independent predictors of activity limitation.

A Systematic Review and Meta-analysis of Randomized Controlled Trials of Stabilizing Exercises for Lumbopelvic Region Impact in Postpartum Women With Low Back and Pelvic Pain

BackgroundCountless women experience lumbopelvic pain (LBPP) after pregnancy. Physical activity is revealed as a beneficial procedure to alleviate LBPP, yet it appears that individual investigations report mixed conclusions about its effectiveness. Objective: This systematic review and meta-analysis examined the impact of stabilizing exercises on pain intensity, disability, and quality of life (QoL) in postpartum women. Data sources: A systematic search was conducted in PubMed, MEDLINE, Google Scholar, Scopus, and reference lists of included studies up to September, 2021. Study selection: Eleven studies comprising 623 participants were included and analyzed using a random-effects model. Results: Data displayed that stabilizing exercises significantly reduced pain (standard mean difference; SMD: -0.76, 95% confidence interval (CI): -1.26 to -0.27, p = .002), and disability (SMD: -1.19, 95% CI: -1.7 to -0.68, p < .001). However, our study found no significant change in QoL following stabilizing exercises (MD: 4.42, 95% CI: -5.73, 14.57, p = .39). Conclusion: Our systematic review and meta-analysis demonstrated that stabilizing interventions had some benefits in postpartum women. While there is some evidence to display the efficacy of stabilizing exercises for relieving LBPP, additional longer-term and high-quality studies are required to confirm the current findings.

Trajectories of Prescription Opioid Utilization During Pregnancy Among Prepregnancy Chronic Users and Risk of Neonatal Opioid Withdrawal Syndrome

Little is known about the impact of dose, duration, and timing of prenatal prescription opioid exposure on the risk of neonatal opioid withdrawal syndrome (NOWS). Using a cohort of 18,869 prepregnancy chronic opioid users nested within the 2000-2014 Medicaid Analytic eXtract, we assessed average opioid dosage within biweekly gestational age intervals, created group-based trajectory models, and evaluated the association between trajectory groups and NOWS risk. Women were grouped into 6 distinct opioid use trajectories which, based on observed patterns, were categorized as 1) continuous very low-dose use, 2) continuous low-dose use, 3) initial moderate-dose use with a gradual decrease to very low-dose/no use, 4) initial high-dose use with a gradual decrease to very low-dose use, 5) continuous moderate-dose use, and 6) continuous high-dose use. Absolute risk of NOWS per 1,000 infants was 7.7 for group 1 (reference group), 28.8 for group 2 (relative risk (RR) = 3.7, 95% confidence interval (CI): 2.8, 5.0), 16.5 for group 3 (RR = 2.1, 95% CI: 1.5, 3.1), 64.9 for group 4 (RR = 8.4, 95% CI: 5.6, 12.6), 77.3 for group 5 (RR = 10.0, 95% CI: 7.5, 13.5), and 172.4 for group 6 (RR = 22.4, 95% CI: 16.1, 31.2). Trajectory models-which capture information on dose, duration, and timing of exposure-are useful for gaining insight into clinically relevant groupings to evaluate the risk of prenatal opioid exposure.

Association Between Pregnancy-Related Hormones and Lumbopelvic Pain Characteristics in Pregnant Women: A Scoping Review

OBJECTIVES

The objectives of this scoping review were (1) to document and quantify the potential associations between lumbopelvic pain characteristics and pregnancy-related hormones, and (2) to identify research approaches and assessment tools used to investigate lumbopelvic pain characteristics and pregnancy-related hormones.

METHODS

The literature search was conducted in 6 databases (MEDLINE, Academic Search Complete, Cumulative Index to Nursing and Allied Health Literature, SportDiscus, PsycINFO, and Cochrane) from inception up to March 2020 and completed using search terms relevant to pregnant women, pregnancy-related hormones, and lumbopelvic pain. The risk of bias was assessed using the characteristics recommended by Guyatt et al. for observational studies.

RESULTS

The search yielded 1015 publications from which 9 met the inclusion criteria. Relaxin was the most studied pregnancy-related hormone. An association between relaxin levels and lumbopelvic pain presence or severity was found in 4 studies, while 5 studies did not report an association between them. One study reported an association between relaxin and lumbopelvic pain presence or severity while 2 studies reported no association and were considered as having a low risk of bias. One study reported measures of estrogen and progesterone levels. It showed that progesterone levels were found to be significantly higher in pregnant women with lumbopelvic pain compared to those without, while estrogen concentrations were similar in both groups.

CONCLUSION

The literature showed conflicting evidence regarding the association between pregnancy-related hormones and lumbopelvic pain characteristics in pregnant women. The assessment tools used to investigate lumbopelvic pain characteristics and pregnancy-related hormones are heterogeneous across studies. Based on limited and conflicting evidence, and due to the heterogeneity of assessment tools and overall poor quality of the literature, the association between pregnancy-related hormones and lumbopelvic pain characteristics is unclear.

Sacroiliac Joint and Pelvic Dysfunction Due to Symphysiolysis in Postpartum Women

Pregnancy-related pain in the sacroiliac joint (SIJ), lumbosacral region, pubic symphysis, or in any combination of these joints has been coined as pelvic girdle pain (PGP) and has been estimated to affect almost half of all pregnant women. SIJ dysfunction in pregnancy is due to multiple biomechanical mechanisms, such as increased weight, change in posture, increased abdominal and intrauterine pressure, and laxity of the spine and pelvic structures. Moreover, when compared to men, women have increased SIJ mobility due to increased pubic angle and decreased SIJ curvature. These differences may assist in parturition where hormones, such as relaxin and estrogen, cause symphysiolysis. A retrospective review of the literature was conducted in the PubMed database using the search term “pregnancy-related sacroiliac joint pain.” All peer-reviewed studies were included. Around 8%-10% of women with PGP continue to have pain for one to two years postpartum. Patients that were treated with SIJ fusion show statistically significant improvement in pain scores when compared to patients that had non-operative treatment. Although we have a number of studies following patients after sacroiliac (SI) joint fusion for pelvic pain with SI joint dysfunction, further research is needed to study sacroiliac fusion for SI joint dysfunction in postpartum women to better tailor and optimize surgical outcomes for this patient population.

Symmetry in Paraspinal Muscles as a Predictor of the Development of Pregnancy-Related Low Back and Pelvic Pain: A Prospective Study

Objective

To determine the asymmetry in the paraspinal muscle before pregnancy and evaluate its association with pregnancy‐associated lumbopelvic pain (LPP).

Methods

This was a prospective case–control study conducted from January 2017 and December 2018. A total of 171 subjects (mean age ± SD, 27.4 ± 5.8 years) were finally divided into the LBP group, PGP group, and no LPP group. Each subject was asked to follow a standardized clinical imaging protocol before the pregnancy. The area of muscles (multifidus, erector spinae, and psoas muscles) on the axial slice at mid‐disc of L₄–L₅ and L₅–S₁ were segmented and then the cross‐sectional area (CSA) of a particular muscle was measured by outlining the innermost fascial border surrounding each muscle. The mean value of F‐CSA's ratio to T‐CSA (F/T CSA) was used to determine whether the bilateral paraspinal muscle was asymmetrical. Total muscle CSA (T‐CSA) represents the sum of CSA of interested three muscles. The signal intensity can distinguish fat and muscle tissue in a different range. Based on this, functional CSA (F‐CSA), represented by fat‐free area, was evaluated quantitively by excluding the signal of the deposits of intramuscular fat. Total muscle CSA (T‐CSA), functional CSA (F‐CSA), and the ratio of F‐CSA to T‐CSA (F/T CSA) were measured unilaterally and compared between groups. Logistic regression was performed to determine the risk factors for pregnancy‐associated LPP. The Pearson correlation coefficient was performed to test the relationship between asymmetry in F/T‐CSA and pain rating.

Results

A total of 124 subjects (72.5%) (28.5 ± 5.2 years) had LPP during pregnancy. Forty‐eight (38.7%) individuals had low back pain (LBP) and 76 (61.3%) had pelvic girdle pain (PGP). Seventy‐six women (44.4%) were determined to have asymmetry in paraspinal muscle according to the definition in this methods section. The duration of follow‐up was 24 months postpartum. A total of 39 (31.5%) women unrecovered from LPP. F/T‐CSA was significantly decreased for LBP in the PGP group than in the and control group (0.03 ± 0.02 vs 0.05 ± 0.03 vs 0.12 ± 0.05, P < 0.001). Meanwhile, significant differences were detected in both groups (all P < 0.001). In patients with LBP, the level of paraspinal asymmetry, represented by the difference in F/T‐CSA, was positively correlated with pain scores (r = 0.52, P < 0.01). However, no statistically significant correlation between pain scores and paraspinal asymmetry was found in PGP (r = 0.42, P > 0.05). Asymmetry in the paraspinal muscle (adjusted OR = 1.5), LBP (adjusted OR = 1.6), LPP in a previous pregnancy (adjusted OR = 1.4), sick leave ≥90 days (adjusted OR = 1.2), and heavy labor (adjusted OR = 1.2) were risk factors for the unrecovered LPP during pregnancy.

Conclusions

Asymmetrical muscular compositions could lead to abnormal biomechanics for the segmental motions. Lateral‐directed physical training and stretching may help decrease the occurrence and severity of this condition.

Are leisure-time and work-related activities associated with low back pain during pregnancy?

BACKGROUND

Although working activities are associated with several pregnancy outcomes, there is scarce information regarding the association between working activities and low back pain (LBP) during pregnancy. This study aimed to investigate whether leisure-time and work-related physical activities during pregnancy are associated with LBP.

METHODS

Data from the 2015 Pelotas Birth Cohort study were used. Demographic, socioeconomic, gestational, leisure-time (prior to and during pregnancy) and work-related (days of work, hours of work, standing and heavy lifting) physical activity data were collected at birth. LPB was assessed in the 12-month follow-up period.

RESULTS

Leisure-time physical activity either prior to and during pregnancy was not associated with LBP. Working during pregnancy, days of work and standing position at work were not associated with self-reported LBP during pregnancy. However, working more than 8 h per day and always lifting heavy objects at work increased the odds ratio for LBP (OR 1.30 95%CI: 1.04; 1.63; and OR: 1.39 95%CI 1.08; 1.81, respectively). In addition, women who had lifted heavy objects often/always, reported an increase in pain intensity.

CONCLUSION

Working during pregnancy and days worked per week were not related to experiencing LBP. However, women who worked more than 8 h per day, as well as women who lifted heavy objects at work on a regular basis, were more likely to experience pregnancy-related LBP.

Six Weeks Effects of Dynamic Neuromuscular Stabilization (DNS) Training in Obese Postpartum Women With Low Back Pain: A Randomized Controlled Trial

BACKGROUND

The worldwide prevalence of obesity and low back pain (LBP) has recently dramatically increased and is mainly indicated among postpartum women, leading to a range of adverse health consequences.

OBJECTIVE

This study aimed to investigate the effects of 6 weeks of Dynamic Neuromuscular Stabilization training (DNS) in obese postpartum women with LBP.

METHOD

This was a pretest-posttest study design. The study was conducted with 40 obese postpartum women with LBP randomized to receive DNS (n = 20) or General Exercise (GE, n = 20) 6 times a week for 6 weeks. The data were gathered before and after the 6-week intervention.

RESULTS

Forty participants completed the study (mean ± SD, age 29.30 ± 3.77 years; weight 88.10 ± 6.09 kg; height 165.40 ± 6.31 cm; and BMI, 32.19 ± 1.07 kg/m²). The overall group-by-time interaction was significant for Numeric Pain-Rating Scale, Modified Oswestry Disability Questionnaire, Fear-Avoidance Beliefs Questionnaire, Inspiration and Expiration Breath Hold Time, and Respiratory Rate outcomes. The global rating of change was significantly different between groups (p < .05). The rate of improvement was higher in the DNS group compared to the GE group in all 6 tests.

CONCLUSION

The present study confirms that DNS is applicable in obese postpartum women with LBP and effectively improved NPRS, MODQ, FABQ, BHT, and RR. It is clinically suggested that DNS is imperative based on ideal ontogenetic patterns to attain optimal results for obese postpartum women with LBP.

A Review on the Vagus Nerve and Autonomic Nervous System During Fetal Development: Searching for Critical Windows

The autonomic nervous system (ANS) is one of the main biological systems that regulates the body's physiology. Autonomic nervous system regulatory capacity begins before birth as the sympathetic and parasympathetic activity contributes significantly to the fetus' development. In particular, several studies have shown how vagus nerve is involved in many vital processes during fetal, perinatal, and postnatal life: from the regulation of inflammation through the anti-inflammatory cholinergic pathway, which may affect the functioning of each organ, to the production of hormones involved in bioenergetic metabolism. In addition, the vagus nerve has been recognized as the primary afferent pathway capable of transmitting information to the brain from every organ of the body. Therefore, this hypothesis paper aims to review the development of ANS during fetal and perinatal life, focusing particularly on the vagus nerve, to identify possible "critical windows" that could impact its maturation. These "critical windows" could help clinicians know when to monitor fetuses to effectively assess the developmental status of both ANS and specifically the vagus nerve. In addition, this paper will focus on which factors-i.e., fetal characteristics and behaviors, maternal lifestyle and pathologies, placental health and dysfunction, labor, incubator conditions, and drug exposure-may have an impact on the development of the vagus during the above-mentioned "critical window" and how. This analysis could help clinicians and stakeholders define precise guidelines for improving the management of fetuses and newborns, particularly to reduce the potential adverse environmental impacts on ANS development that may lead to persistent long-term consequences. Since the development of ANS and the vagus influence have been shown to be reflected in cardiac variability, this paper will rely in particular on studies using fetal heart rate variability (fHRV) to monitor the continued growth and health of both animal and human fetuses. In fact, fHRV is a non-invasive marker whose changes have been associated with ANS development, vagal modulation, systemic and neurological inflammatory reactions, and even fetal distress during labor.

Low Back Pain during Pregnancy and Delivery Outcomes

AIM

To evaluate low back pain (LBP) incidence and impact throughout pregnancy in terms of women's well-being and delivery outcomes.

MATERIAL AND METHODS

Cross-sectional prospective study conducted on singleton pregnancies at ≥37th gestational age admitted for delivery. Localization of LBP, intensity and frequency as well as derived functional disability status were assessed with a self-reported questionnaire. Main delivery outcomes including mode of delivery, and maternal or neonatal complications were recorded.

RESULTS

A total of 229 women participated in the study. LBP prevalence amounted to 55.9%, with the pain already present before pregnancy in 14.0% of the cases. The pain was mostly localized in the lower back (40.6%), symphysis (23.3%), and coccyx (20.5%). Both the frequency and intensity of pain gradually increased significantly during pregnancy, reaching 20 days/month (IQR=10-30) and 6/10 points (IQR=5-8) on a visual analog scale in the 3rd trimester (p<0.05). The extent of functional impairment also progressively increased up to 39/100 points (IQR=25-55, p<0.05). Women affected by LBP during pregnancy had a higher cesarean section rate during labor than women without LBP (11.9% vs. 28.9%, p<0.05). The risk was also significant in the multivariate analysis (OR=4.0, 95%CI=1.1-15.0, p<0.05). There was no difference in the rate of operative vaginal births or in the other outcomes considered.

CONCLUSIONS

LBP is a common issue in pregnant women, accounting for increasing morbidity and invalidity, and leading to an increased cesarean section risk during labor.

Risk factors for accidental falls during pregnancy - a systematic literature review

INTRODUCTION

Falls during pregnancy occur in 25-27% of women and can cause serious harm to both the mother and the fetus. The objective of this systematic review was to identify intrinsic and extrinsic risk factors for falls during pregnancy by reviewing original studies and addressing possible forms of prevention.

METHODS

We searched PubMed, Cochrane library, and Web of Science databases for studies assessing risk factors for falling after a fall has occurred or by using posturographic assessment.

RESULTS

Fourteen studies were included in the review. The identified extrinsic risk factors include slippery floors, cluttered areas, uneven ground, inappropriate shoes, hurrying, walking on stairs, carrying additional loads, poor lighting or obstructed view, sedentary lifestyle and working in physically demanding jobs. The identified intrinsic factors include age less than 30, height more than 160 cm, advanced pregnancy, unintended pregnancy, multiparity, hyperemesis gravidarum, low back pain, gestational diabetes, increase in abdominal circumference, lower ankle stiffness and joint laxity. Physical activity, maternity support belts, and education are possible strategies for fall prevention.

CONCLUSION

Our systematic review identified 13 intrinsic and 11 extrinsic risk factors for falling during pregnancy. With the knowledge of risk factors and the optimal prevention strategy, healthcare providers could incorporate this information in the treatment of pregnant women and reduce the risk of falling.

Peripartum Pubic Symphysis Diastasis-Practical Guidelines

Optimal development of a fetus is made possible due to a lot of adaptive changes in the woman’s body. Some of the most important modifications occur in the musculoskeletal system. At the time of childbirth, natural widening of the pubic symphysis and the sacroiliac joints occur. Those changes are often reversible after childbirth. Peripartum pubic symphysis separation is a relatively rare disease and there is no homogeneous approach to treatment. The paper presents the current standards of diagnosis and treatment of pubic diastasis based on orthopedic and gynecological indications.

Low back pain as an initial symptom of pregnancy-associated breast cancer: a case report

BACKGROUND

Low back pain during pregnancy and postpartum is common and might not arouse clinical interest. Pregnancy-associated breast cancer is often found as a breast mass, but its diagnosis is difficult during pregnancy and postpartum. As more women delay their first pregnancies, its incidence may increase in the future.

CASE PRESENTATION

The patient was a 30-year-old gravida 3, para 3. She had low back pain from the second trimester of her previous two pregnancies, which improved spontaneously after delivery. In her third pregnancy, she again developed low back pain in the second trimester. Her delivery was normal. However, her low back pain continued for up to 7 months postpartum and then worsened sharply. A whole-body scan revealed a compression fracture due to multiple spinal metastases of breast cancer. As she had not complained about her breasts, they had not been closely examined.

CONCLUSIONS

This case shows the importance of considering bone metastases from breast cancer in the differential diagnosis of patients with low back pain during pregnancy and postpartum.

Turkish translation, cross-cultural adaptation, and psychometric validation of the pregnancy symptoms inventory: An instrument to assess the full spectrum of pregnancy symptoms

OBJECTIVE

To translate the PSI (Pregnancy Symptoms Inventory) into Turkish, to perform its cultural adaptation, to establish its reliability and validity, and to examine the prevalence of perceived pregnancy symptoms frequency and symptom-related limitation in Turkish pregnant women.

DESIGN

This cross-sectional study included healthy pregnant women over 18 years old from all 3 pregnancy trimesters. In the reliability analysis, the test-retest reliability was investigated by the Pearson correlation analysis. For the criterion validity of the PSI, correlations between the total pregnancy symptom frequency scores and the total scores of the Tilburg Pregnancy Distress Scale, the State-Trait Anxiety Inventory, the Beck Depression Inventory, and the Nottingham Health Profile were analyzed. Frequency and limitation perception prevalence of the symptoms were calculated as a percentage based on the response to each symptom. Statistical significance level was accepted as p<0.05.

MEASUREMENTS AND FINDINGS

In the present study, 210 pregnant women participated, and 42 pregnant women filled out the Turkish-PSI twice for the test-retest analysis. In the frequency and limitation sections of the PSI, the test-retest correlations for each symptom were found to vary between medium and very strong (0.42-1.00 and 0.39-1.00, p <0.05, respectively). Moderate correlations (rho = 0.39-0.58, p <0.05, p ≤ 0.001) were detected between the frequency section total score and the total scores of the other scales. The top four symptoms indicated as "often" by the Turkish pregnant women were urinary frequency (42.4%), fatigue/tiredness (28.6%), increased vaginal discharge (26.7%), and upper/lower back pain (23.8%).

KEY CONCLUSIONS

The Turkish-PSI is a comprehensive, reliable, and valid inventory for evaluating a wide range of pregnancy symptoms in Turkish pregnant women. Further studies are needed to examine the sensitivity of the Turkish-PSI to treatment-induced changes.

IMPLICATIONS FOR PRACTICE

Comprehensive and practical symptom questioning tools such as the PSI during pregnancy can lead to the early detection of pregnancy symptoms and to initiate effective non-pharmacological interventions.

Association of first trimester prescription opioid use with congenital malformations in the offspring: population based cohort study

OBJECTIVE

To evaluate the risk of first trimester exposure to prescription opioids for major congenital malformations, previously reported to be associated with such exposure.

DESIGN

Population based cohort study.

SETTING

Nationwide sample of publicly and commercially insured pregnant women linked to their liveborn infants, nested in the Medicaid Analytic eXtract (MAX, 2000-14) and the MarketScan Research Database (MarketScan, 2003-15).

PARTICIPANTS

1 602 580 publicly insured (MAX) and 1 177 676 commercially insured (MarketScan) pregnant women with eligibility from at least three months before pregnancy to one month after delivery; infants with eligibility for at least three months after birth.

INTERVENTIONS

Use of prescription opioids was ascertained by requiring two or more dispensations of any opioid during the first trimester.

MAIN OUTCOMES MEASURES

Major malformations overall, cardiac malformations overall, ventricular septal defect, secundum atrial septal defect/patent foramen ovale, neural tube defect, clubfoot, and oral cleft, defined based on validated algorithms. Propensity score stratification was used to adjust for potential confounders and/or proxies for confounders. Estimates from each database were combined using meta-analysis.

RESULTS

70 447 (4.4%) of 1 602 580 publicly insured and 12 454 (1.1%) of 1 177 676 commercially insured pregnant women had two or more dispensations of an opioid during the first trimester. Absolute risk of malformations overall was 41.0 (95% confidence interval 39.5 to 42.5) per 1000 pregnancies exposed to opioids versus 32.0 (31.7 to 32.3) per 1000 unexposed pregnancies in the MAX cohort, and 42.6 (39.0 to 46.1) and 37.3 (37.0 to 37.7) per 1000, respectively, in the MarketScan cohort. Pooled unadjusted relative risk estimates were raised for all outcomes but shifted substantially toward the null after adjustment; for malformations overall (relative risk 1.06, 95% confidence interval 1.02 to 1.10), cardiovascular malformations (1.09, 1.00 to 1.18), ventricular septal defect (1.07, 0.95 to 1.21), atrial septal defect/patent foramen ovale (1.04, 0.88 to 1.24), neural tube defect (0.82, 0.53 to 1.27), and clubfoot (1.06, 0.88 to 1.28). The relative risk for oral clefts remained raised after adjustment (1.21, 0.98 to 1.50), with a higher risk of cleft palate (1.62, 1.23 to 2.14).

CONCLUSIONS

Prescription opioids used in early pregnancy are not associated with a substantial increase in risk for most of the malformation types considered, although a small increase in the risk of oral clefts associated with their use is possible.

The Impact of Sedentary Behavior After Childbirth on Postpartum Lumbopelvic Pain Prolongation: A Follow-Up Cohort Study

Background: A substantial number of women have postpartum lumbopelvic pain (LBPP). Additionally, many postpartum women stay for long inactivity. Therefore, we examined the impact of sedentary behavior on persistent postpartum LBPP and the difference in this impact due to parity. Materials and Methods: This cohort study followed up women who had reported LBPP at 4 months postpartum and divided them into the presence or absence of LBPP at 10 months postpartum. Sedentary time and physical activity were assessed at 4 months postpartum using the International Physical Activity Questionnaire short form. Univariate and multivariate logistic regression analysis was used to calculate persistent LBPP odds ratios (ORs) according to sedentary times, followed by stratification analysis by parity. The institutional review board approval was obtained. Results: A total of 182 women (32.1 ± 5.1 years old) were included for analysis and 112 (61.5%) participants had persistent LBPP at 10 months postpartum. Those with persistent LBPP at 10 months postpartum had increased sedentary time (5.0 [3.0-7.0] hours vs. 3.5 [2.0-6.0] hours, p = 0.05) at 4 months compared with those without LBPP. Even after adjusting for confounding factors, longer sedentary time at 4 months postpartum affected persistent LBPP at 10 months postpartum in primiparas (adjusted OR [95% confidence interval, CI] = 1.28 [1.05-1.55]), but longer sedentary time at 4 months postpartum did not affect persistent LBPP at 10 months postpartum in multiparas (adjusted OR [95% CI] = 0.96 [0.86-1.07]). Conclusion: Sedentary behavior after childbirth is associated with persistent postpartum LBPP in primiparas, but not multiparas. Reducing sedentary time might be beneficial to prevent persistent postpartum LBPP for primiparas.

The Effectiveness of Non-Pharmaceutical Interventions Upon Pregnancy-Related Low Back Pain: A Systematic Review and Meta-Analysis

Introduction: Low back pain (LBP) is a very common pathology among pregnant women and various methods are used to reduce the pain. The aim of this study is to conduct an evidence-based systematic review and meta-analysis regarding the effectiveness of the interventions used to reduce low back pain related to pregnancy. 

Methods and materials: The PEDro database, PubMed, and Cochrane Library were searched from January 2012 until December 2020 as well as the reference lists from identified articles. Studies of any non-pharmaceutical treatment to decrease low back pain were included but only randomized controlled trials were selected. The articles found were screened using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) question. Details about the type of intervention, sample size, outcome measures, results, and statistical significance were extracted from the selected studies. A meta-analysis for pain intensity was conducted and the I² index as well as x² test were used to determine the heterogeneity between studies. A random-effects meta-analysis was carried out. The aim was to compare the effectiveness between various methods and the typical care provided on low back pain during pregnancy. 

Results: From all the articles found in the mentioned databases only 13 studies met the criteria. In these studies, exercise, manipulation, ear acupuncture, Kinesio tape, transcutaneous electrical nerve stimulation (TENS), and neuroemotional technique were the interventions used. In the meta-analysis, six studies with 693 participants were included. The interventions were found to have in total a statistically significant effect on low back pain in comparison with the control group that included the typical care provided to pregnant women (95%CI: 0.08 (0.02,0.31), p<0,01) and they had a high heterogeneity (considerable, Tau² = 2.70; Chi² = 64.11, I² = 91%). Exercise and TENS were determined as more effective than the other types of interventions.

Conclusions: TENS and progressive muscle relaxation exercises accompanied by music were found to be the most effective interventions. Although exercise decreased LBP it was not found to have a statistically significant result even though it seems to improve the disability and quality of life of pregnant women. Osteopathic manual treatment (OMT), Kinesio tape, and ear acupuncture affected the lumbar pain intensity but the difference compared to typical care or sham treatment was not statistically significant, while yoga did not improve pregnancy-related LBP. Further research is needed to determine the effectiveness of the interventions mentioned. 

Characteristics and Management of Pregnant Patients From a Neuromusculoskeletal Medicine/Osteopathic Manipulative Medicine Clinic

Context

Osteopathic manipulative medicine (OMM) is considered beneficial in the treatment of pregnant women, but few studies have outlined the presenting complaints and diagnoses that warrant consideration and utilization of osteopathic manipulative treatment (OMT) in this population.

Objective

To describe the characteristics of pregnant patients receiving OMM at a neuromusculoskeletal medicine (NMM)/OMM specialty outpatient clinic, for the purpose of identifying patients who would benefit from referral to NMM specialty clinics or to be considered for treatment by DOs in non-NMM specialty clinics.

Methods

Electronic health records were reviewed from a single clinic for a 3-year period from October 2015 through September 2018 for patient encounters involving patients with an International Classification of Diseases 10th Revision code for pregnancy. Data regarding patient demographics, payment methods, presenting complaints, treatment modalities, regions treated, and assessment diagnoses were collected and analyzed.

Results

Records showed 465 clinical encounters with 194 pregnant patients (mean [SD] number of encounters per patient, 2.4 [2.0]). The most common presenting complaints involved the back (371; 55.4%), hip and pelvis (99; 14.8%), neck (62; 9.3%), and head (54; 8.1%). The most common clinical assessments were lumbar and thoracic spine neuromusculoskeletal diagnoses (420; 53.0%). There were 2604 somatic dysfunction assessments documented; lumbar (409; 15.7%) and sacral (396; 15.2%) somatic dysfunction were most commonly assessed. There were 2518 OMT techniques documented, and muscle energy was most frequently used (406; 16.1%).

Conclusions

This data, which documents the most frequent presenting complaints of pregnant patients in an NMM/OMM clinic, may be used by clinicians to better understand the role of OMM as an obstetric adjunctive treatment approach and to identify conditions to investigate in future outcome studies.

The Need to Consider Pregnancy As a Biological Variable to Reduce Preventable Suffering Related to Pregnancy

Maternal morbidity and mortality constitute a national health crisis, and pain is a significant component of maternal morbidity. One important way to reduce maternal morbidity is to reduce the pain associated with pregnancy. Unfortunately, our understanding of how to reduce pain in women is hampered because, historically, mostly male subjects have been used in the study of pain. However, more recently, females increasingly have been included in pain research studies, and astounding differences in how males and females process pain have been uncovered. Moreover, pain in nonpregnant women differs in many ways from pain experienced by pregnant women. We argue here that to better address maternal morbidity, we must better address the pain associated with pregnancy. Furthermore, just as it is important to include both men and women in pain research to better understand pain in both sexes, conducting pain research in pregnant women is essential to finding ways to reduce pain in pregnant women.

Pelvic floor muscle training for women with lumbopelvic pain: A systematic review and meta-analysis

BACKGROUND AND OBJECTIVE

It has been suggested that pelvic floor dysfunction may contribute to the development of lumbopelvic pain as a result of changes in trunk muscle control. However, there is limited evidence that pelvic floor muscle training (PFMT) can improve clinical outcomes in women with lumbopelvic pain.

DATABASES AND DATA TREATMENT

Six databases were searched for randomized controlled trials (RCTs) comparing the effectiveness of PFMT to other conservative interventions (usual physiotherapy care or minimal intervention), no treatment or placebo interventions on pain and disability in women with lumbopelvic pain.

RESULTS

We included eight RCTs totalling 469 participants. PFMT was more effective than minimal intervention for lumbopelvic pain [mean difference (MD) 15.9/100 (95% confidential interval (CI), 8.2 to 23.6; p = 0.00; I²  = 3.92%)] and disability [standardized mean difference (SMD) 0.5 (95% CI 0.1-0.9; p = 0.00; I²  = 0%)] during pregnancy. PFMT was more effective than usual physiotherapy care for pain (MD 11.7/100 [95% CI 7.5-15.9; p = 0.00; I²  = 94.14%]) and disability (SMD 0.3 (95% CI 0.0-0.6; p = 0.01; I²  = 82.54%]) in non-pregnant women. Effect sizes were in general of arguable clinical relevance.

CONCLUSIONS

Overall, the certainty of the evidence was very low to low. There is no conclusive evidence that the addition of PFMT to usual physiotherapy care or minimal intervention is superior to minimal intervention and usual care alone given the small number of studies and high levels of heterogeneity of included studies. Further well-designed trials are needed to establish the effectiveness of PFMT for lumbopelvic pain in women.

Association Between Physical Activity, Weight Loss, Anxiety, and Lumbopelvic Pain in Postpartum Women

OBJECTIVE

Lumbopelvic pain (LBPP) affects 45% to 81% of pregnant women, and 25% to 43% of these women report persistent LBPP beyond 3 months after giving birth. The objective of this study was to investigate the association of physical activity, weight status, anxiety, and evolution of LBPP symptoms in postpartum women.

METHODS

This was a prospective observational cohort study with 3 time-point assessments: baseline (T0), 3 months (T3), and 6 months (T6). Women with persistent LBPP 3 to 12 months after delivery were recruited. At each time point, pain disability was assessed with the Pelvic Girdle Questionnaire and the Oswestry Disability Index (ODI), physical activity with Fitbit Flex monitors, and anxiety with the French-Canadian version of the State-Trait Anxiety Inventory. Weight was recorded using a standardized method. Pain intensity (numerical rating scale, 0-100) and frequency were assessed using a standardized text message on a weekly basis throughout the study.

RESULTS

Thirty-two women were included (time postpartum: 6.6 ± 2.0 months; maternal age: 28.3 ± 3.8 years; body weight: 72.9 ± 19.1 kg), and 27 completed the T6 follow-up. Disability, pain intensity, and pain frequency improved at T6 (P < .001). Participants lost a mean of 1.9 ± 4.5 kg at T6, and this weight loss was correlated with reduction in LBPP intensity (r = 0.479, P = .011) and LBPP frequency (r = 0.386, P = .047), Pelvic Girdle Questionnaire score (r = 0.554, P = .003), and ODI score (r = 0.494, P = .009). Improvement in ODI score at T6 was correlated with the number of inactive minutes at T3 (r = -0.453, P = .026) and T6 (r = -0.457, P = .019), and with daily steps at T6 (r = 0.512, P = .006).

CONCLUSION

Weight loss is associated with positive LBPP symptom evolution beyond 3 months postpartum, and physical activity is associated with reduction in pain disability.