An analysis of postpartum walking balance and the correlations to anthropometry

Does the pregnancy-related adaptation of gait biomechanics after childbirth recover to its pre-pregnancy state?: A systematic review

BACKGROUND

Although changes in the gait biomechanics during pregnancy are known to occur, it is unclear whether they return to their original state after childbirth.

RESEARCH QUESTION

The objective of the current systematic review is to summarize existing literature reporting the biomechanical characteristics of gait in postpartum women and to identify knowledge gaps that calls for future investigations in this population.

METHODS

Relevant articles were selected using MEDLINE (PubMed), Scopus (Elsevier), Embase (Elsevier), and Web of Science (Clarivate Analytics). Articles were included if they met the following criteria: They must (1) include postpartum women, (2) report measures related to three-dimensional (3D) kinematics and/or kinetics, (3) have been published after 1990, and (4) have been published in English.

RESULTS AND SIGNIFICANCE

The current systematic review included a total of 14 articles, five of which compare the data from postpartum women with nulliparous women or pre-pregnancy data. We observed that gait biomechanics changes of postpartum women could persist for more than 5 years after the childbirth. This review provides novel viewpoints on the biomechanics of postpartum women's gait and recommendations for future studies to fully understand these changes and improve postpartum women's physical and mental wellbeing.

Determining fall risk change throughout pregnancy: the accuracy of postpartum survey and relationship to fall efficacy

All epidemiological studies on pregnancy fall risk to date have relied on postpartum recall. This study investigated the accuracy of postpartum recall of falls that were reported during pregnancy, including assessment of fall efficacy as a possible reason for recall inaccuracy. Twenty participants reported fall experiences weekly during pregnancy, but one participant was excluded as an outlier. A fall efficacy questionnaire was completed every six weeks during pregnancy. A postpartum survey to mimic previous studies (Dunning, Lemasters, and Bhattacharya 2010; Dunning et al. 2003) was delivered to determine recall accuracy. Postpartum recall of fall events each gestational month matches the previous study (Dunning, Lemasters, and Bhattacharya 2010). However, recall of falls is 16% underestimated and recall of all fall events is 30% overestimated in postpartum survey. There is a slight relationship between fall efficacy and true falls, but not between fall efficacy and fall recall. Our study suggests fall risk needs to be intermittently surveyed throughout pregnancy rather than assessed via postpartum survey.Practitioner summary: This study investigated the accuracy of postpartum survey of fall risk during pregnancy and the possibility of fall efficacy as a covariate. We used three corresponding surveys. We found inaccuracies in postpartum survey, not explain by fall efficacy.

ÜÇÜNCÜ TRİMESTERDA AYAKKABI UYGUNLUĞU, DÜŞME KORKUSU VE FİZİKSEL AKTİVİTE ARASINDAKİ İLİŞKİ

Purpose: Pregnancy is a time of intense physiologic and physical changes, especially in third trimester. The aim of this study was to investigate the relationship between the footwear suitability, fear of falling and physical activity in third trimester of pregnancy. Methods: One hundred twenty-three pregnant women aged between 18-40 years and a gestational age of 28 weeks and above were included the study. The Footwear Assessment Score was used to assess the suitability of the footwear. The fear of falling of the participants was measured using the Falls Efficacy Scale-International, and the physical activity level was measured using the International Physical Activity Questionnaire - short form. Results: A low negative correlation (r = -0.215; p < 0.05) was found between physical activity and fear of falling, and a low positive correlation (r = 0.256; p < 0.01) was found between footwear suitability and physical activity in pregnant women. There was no statistically significant relationship (r = -0.120; p = 0.185) between footwear suitability and fear of falling. Conclusion: According to the findings of the current study, it can be concluded that a more appropriate choice of shoes as the level of physical activity increases among pregnant women, and physical activity may reduce the fear of falling during pregnancy. Future studies are needed to investigate footwear suitability during pregnancy in more detail.

Assessment of physical fitness during pregnancy: validity and reliability of fitness tests, and relationship with maternal and neonatal health - a systematic review

Objectives

To systematically review studies evaluating one or more components of physical fitness (PF) in pregnant women, to answer two research questions: (1) What tests have been employed to assess PF in pregnant women? and (2) What is the validity and reliability of these tests and their relationship with maternal and neonatal health?

Design

A systematic review.

Data sources

PubMed and Web of Science.

Eligibility criteria

Original English or Spanish full-text articles in a group of healthy pregnant women which at least one component of PF was assessed (field based or laboratory tests).

Results

A total of 149 articles containing a sum of 191 fitness tests were included. Among the 191 fitness tests, 99 (ie, 52%) assessed cardiorespiratory fitness through 75 different protocols, 28 (15%) assessed muscular fitness through 16 different protocols, 14 (7%) assessed flexibility through 13 different protocols, 45 (24%) assessed balance through 40 different protocols, 2 assessed speed with the same protocol and 3 were multidimensional tests using one protocol. A total of 19 articles with 23 tests (13%) assessed either validity (n=4), reliability (n=6) or the relationship of PF with maternal and neonatal health (n=16).

Conclusion

Physical fitness has been assessed through a wide variety of protocols, mostly lacking validity and reliability data, and no consensus exists on the most suitable fitness tests to be performed during pregnancy.

PROSPERO registration number

CRD42018117554.

Physical Activity, Yoga, and Exercise Prescription for Postpartum and Midlife Weight Management: A Practical Review for Clinicians

This narrative review is aimed to practically review and evaluate the existing evidence and illuminate the effectiveness of physical activity, yoga, and exercise for postpartum and midlife weight management. A comprehensive review was conducted using electronic databases such as PubMed and google scholar using search terms physical activity, exercise, yoga, postpartum, midlife, weight loss, weight reduction, and all the probable terms. This helped in generating evidence-based information and formulating practical physical activity prescriptions to be used by obstetricians, general clinicians, nutritionists, and other allied healthcare personnel. Overweight and obesity in postpartum and midlife women present long-term health risks and complications. Indulging in optimum physical activity comprising exercise and yoga will help in weight management, increasing muscular strength, and endurance thus improving overall health and well-being.

Supplementary Information

The online version contains supplementary material available at 10.1007/s13224-022-01627-w.

Static and dynamic postural control of postpartum women of different delivery methods

OBJECTIVE

The aim of this study was to determine whether there is a difference in postural control between nulligravida women and women who have given birth by vaginal or cesarean section.

METHODS

Women who had only vaginal delivery in the previous 1-3 years were included in the vaginal delivery group (n = 27), those who had only cesarean delivery in the previous 1-3 years were included in the cesarean section group (n = 28), and those who had never given birth were included in the control group (n = 32). Evaluations were administered 6-8 days after the ovulation phase. Postural control of the participants was evaluated with the computerized dynamic posturography device.

RESULTS

A total of 87 women with a mean age of 29.4 ± 4 years and a mean body mass index of 24.1 ± 3.1 kg/m² were included in the study. Antero-posterior somatosensory organization test values of the vaginal delivery group were lower than the control group (p = 0.0016). The cesarean delivery group had statistically lower antero-posterior somatosensory (p < 0.001 and p = 0.0013) and medio-lateral somatosensory (p = 0.002 and p = 0.017, respectively) test scores compared to the control group and the vaginal delivery group.

CONCLUSIONS

It was observed that women who birthed with vaginal or cesarean delivery had impaired somatosensory postural control. There is definitely a need for further studies with a long-term follow-up examining the effects of postural control during pregnancy and the postpartum period.

Shoulder and elbow requirements during sagittal reach as a result of changing anthropometry throughout pregnancy

During pregnancy, anthropometric and physiological changes can result in difficulty reaching for and lifting everyday objects. The aims of this study were to determine the changes in sagittal plane anterior reach space (SPARS) and shoulder/elbow strength requirements throughout pregnancy. Seventeen participants were tested through a longitudinal observational cohort study between 16 and 36 weeks gestation in four-week intervals. A 25% decrease in SPARS was observed at the L3-4 torso height. Combined with arm mass increases, shoulder and elbow moment requirements at the minimum and maximum static reach distances significantly increased. However, inverse dynamics analysis determined that mass gains in the arm alone only minimally impact dynamic shoulder moments. Additionally, torso flexion increases throughout pregnancy demonstrates that women are attempting to compensate for decreased SPARS, possibly indicating the additional perceptual importance of reach space in accommodations for pregnant workers.

Correlations between joint kinematics and dynamic balance control during gait in pregnancy

BACKGROUND

Dynamic balance control degrades during pregnancy, but it is not yet understood why. Mechanical aspects of the body should directly affect walking balance control, but we have recently published papers indicating that weight gains during pregnancy explain very little dynamic balance changes. Our goal was to determine if lower extremity joint kinematic changes are an indicator of walking balance control. This information is vital to understanding the route by which pregnancy increases fall risk.

METHODS

Twenty-three pregnant women were tested at five different times in the 2nd and 3rd trimesters of pregnancy. Participants performed walking trials at a self-selected pace. Motion capture was used to measure joint kinematics (discrete and coordination variables) and body center of mass motion. Changes over time were statistically analyzed. Correlations between kinematics and walking balance were modelled with hierarchical multiple regression models.

RESULTS

As pregnancy progresses, it appears that a more flexed hip posture could be driving lower extremity kinematic changes toward increased coordination between joints and increased knee and ankle motions. Walking balance changes were also detected through increased COM motion (lateral range of motion and velocity) in the lateral directions. However, there was little correlation between kinematic and balance changes (r² < 0.4). Strong correlations were only observed when all kinematics (including those that don't ubiquitously change during pregnancy) were used in the regression model (r² > 0.7).

SIGNIFICANCE

Our findings suggest that walking balance control is not altered by a common kinematic change between all pregnant women. While increased lateral center of mass motion should be expected with pregnancy, the kinematics leading to this increase may be person-specific. The cause of dynamic imbalance in each pregnant women (physiological, mechanical, and neurocognitive) may play an important role in determining the kinematic means by which lateral center of mass motion increases.