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1.
BMC Pregnancy Childbirth ; 24(1): 248, 2024 Apr 08.
Article in English | MEDLINE | ID: mdl-38589786

ABSTRACT

BACKGROUND: Placental management strategies such as umbilical cord milking and delayed cord clamping may provide a range of benefits for the newborn. The aim of this review was to assess the effectiveness of umbilical cord milking and delayed cord clamping for the prevention of neonatal hypoglycaemia. METHODS: Three databases and five clinical trial registries were systematically reviewed to identify randomised controlled trials comparing umbilical cord milking or delayed cord clamping with control in term and preterm infants. The primary outcome was neonatal hypoglycaemia (study defined). Two independent reviewers conducted screening, data extraction and quality assessment. Quality of the included studies was assessed using the Cochrane Risk of Bias tool (RoB-2). Certainty of evidence was assessed using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. Meta-analysis using a random effect model was done using Review Manager 5.4. The review was registered prospectively on PROSPERO (CRD42022356553). RESULTS: Data from 71 studies and 14 268 infants were included in this review; 22 (2 537 infants) compared umbilical cord milking with control, and 50 studies (11 731 infants) compared delayed with early cord clamping. For umbilical cord milking there were no data on neonatal hypoglycaemia, and no differences between groups for any of the secondary outcomes. We found no evidence that delayed cord clamping reduced the incidence of hypoglycaemia (6 studies, 444 infants, RR = 0.87, CI: 0.58 to 1.30, p = 0.49, I2 = 0%). Delayed cord clamping was associated with a 27% reduction in neonatal mortality (15 studies, 3 041 infants, RR = 0.73, CI: 0.55 to 0.98, p = 0.03, I2 = 0%). We found no evidence for the effect of delayed cord clamping for any of the other outcomes. The certainty of evidence was low for all outcomes. CONCLUSION: We found no data for the effectiveness of umbilical cord milking on neonatal hypoglycaemia, and no evidence that delayed cord clamping reduced the incidence of hypoglycaemia, but the certainty of the evidence was low.


Subject(s)
Fetal Diseases , Hypoglycemia , Infant, Newborn, Diseases , Infant , Infant, Newborn , Female , Humans , Pregnancy , Infant, Premature , Umbilical Cord Clamping , Umbilical Cord , Blood Transfusion , Placenta , Time Factors , Hypoglycemia/prevention & control
2.
Psychol Sport Exerc ; 73: 102650, 2024 Apr 20.
Article in English | MEDLINE | ID: mdl-38648871

ABSTRACT

Despite the well-established link between physical activity and positive health outcomes, much of the world's population remains inactive. Many people don't invest in health behaviours, such as physical activity, in the present, despite the long-term benefits of this. The aim of this study was to assess the relationship between physical activity levels and risk and time preferences in university students. A maximum likelihood model was used to jointly estimate risk and time preferences (elicited in an incentivised choice experiment), and to examine the relationship between these preferences and self-reported physical activity. Physically inactive people discounted the future significantly more than physically active people did. Physically active people made slightly more risky choices in our risk attitude task, although this directional relationship was not statistically significant. The link between time preferences and physical activity suggests that further research on behavioural strategies such as commitment devices, nudging or temptation bundling may be helpful in increasing physical activity for individuals who discount the future in favour of more immediate benefits.

3.
Article in English | MEDLINE | ID: mdl-37681815

ABSTRACT

Background: In low-to-middle income countries (LMICs), there is a growing burden of non-communicable diseases (NCDs) placing strain on the facilities and human resources of healthcare systems. Prevention strategies that include lifestyle behavior counseling have become increasingly important. We propose a potential solution to the growing burden of NCDs through an expansion of the role for community health workers (CHWs) in prescribing and promoting physical activity in public health settings. This discussion paper provides a theoretical model for task-shifting of assessment, screening, counseling, and prescription of physical activity to CHWs. Five proposed tasks are presented within a larger model of service delivery and provide a platform for a structured, standardized, physical activity prevention strategy aimed at NCDs using CHWs as an integral part of reducing the burden of NCDs in LMICs. However, for effective implementation as part of national NCD plans, it is essential that CHWs received standardized, ongoing training and supervision on physical activity and other lifestyle behaviors to optimally impact community health in low resource settings.


Subject(s)
Community Health Workers , Noncommunicable Diseases , Humans , Exercise , Noncommunicable Diseases/prevention & control , Prescriptions , Public Health
5.
Article in English | MEDLINE | ID: mdl-34070723

ABSTRACT

While the benefits of physical activity (PA) during and after pregnancy have been established, many women do not reach the recommended PA levels during this time. A major barrier found in the literature is a lack of counselling by healthcare providers (HCPs), which is partly caused by the limited knowledge on the topic. The aim of this study was to develop an intervention to improve the promotion of PA by HCPs. We used Intervention Mapping (IM), a theory-based framework to develop an intervention, called "Baby steps", in a high-income (Austria) and a low-to-middle-income country (South Africa). We applied the following IM steps: (1) A needs assessment to determine the barriers and enablers of PA promotion by HCPs, including a scoping literature review and community needs assessments (qualitative interviews, questionnaires, and focus groups with midwives, obstetricians, and community health workers) to determine the desired outcomes of the intervention. (2) Performance and change objectives were formulated, describing the behaviors that need to change for the intervention to succeed. (3) Based on these objectives, theory-based behavior change techniques were selected, and practical applications were developed. (4) The applications were combined into two evidence-based interventions tailored to each country's needs. Step (5) and (6) consist of an implementation and evaluation plan, respectively. The intervention is aimed at HCPs, such as midwives and community health workers, consisting of a two-day training course, including practical resources. Combining didactic and interactive education, it addresses both PA knowledge and the skills needed to transfer knowledge and facilitate behavior change. In the future, the intervention's effect on women's activity levels during and after pregnancy needs to be studied.


Subject(s)
Exercise , Parturition , Austria , Female , Humans , Needs Assessment , Pregnancy , South Africa
6.
Article in English | MEDLINE | ID: mdl-32751089

ABSTRACT

This study aimed to investigate the extent to which preschool children meet guidelines for screen time (<1 h/day) and sleep (10-13 h/24-h) and explored home factors that affect these behaviors. Parents of preschoolers across income settings in South Africa (urban high-income n = 27, urban low-income n = 96 and rural low-income n = 142) completed a questionnaire. Urban high-income children had higher rates of exceeding screen time guidelines (67.0%) than children from urban low-income (26.0%) and rural low-income (3.5%) settings. Most children (81.0%) met sleep guidelines on weekdays and on weekends (75.0%). More urban high-income children met the sleep guideline, in comparison to both low-income settings. Fewer urban high-income parents (50.0%) thought that screen time would not affect their preschooler's health, compared to urban low-income (90.4%) and rural low-income (81.7%) parents. Weeknight bedtime was positively correlated with both weekday screen time (p = 0.001) and weekday TV time (p = 0.005), indicating that more time on screens correlated with later bedtimes. Meeting screen time and sleep guidelines differs across income settings, but it is evident that parents of preschoolers across all income settings would benefit from greater awareness about guidelines.


Subject(s)
Exercise , Screen Time , Child, Preschool , Cross-Sectional Studies , Humans , Rural Population , Sleep , South Africa/epidemiology
7.
Sports Med ; 50(7): 1271-1315, 2020 Jul.
Article in English | MEDLINE | ID: mdl-32125670

ABSTRACT

BACKGROUND: Questionnaires provide valuable information about physical activity (PA) behaviors in older adults. Until now, no firm recommendations for the most qualified questionnaires for older adults have been provided. OBJECTIVES: This review is an update of a previous systematic review, published in 2010, and aims to summarize, appraise and compare the measurement properties of all available self-administered questionnaires assessing PA in older adults. METHODS: We included the articles evaluated in the previous review and conducted a new search in PubMed, Embase, and SPORTDiscus from September 2008 to December 2019, using the following inclusion criteria (1) the purpose of the study was to evaluate at least one measurement property (reliability, measurement error, hypothesis testing for construct validity, responsiveness) of a self-administered questionnaire; (2) the questionnaire intended to measure PA; (3) the questionnaire covered at least one domain of PA; (4) the study was performed in the general, healthy population of older adults; (5) the mean age of the study population was > 55 years; and (6) the article was published in English. Based on the Quality Assessment of Physical Activity Questionnaires (QAPAQ) checklist, we evaluated the quality and results of the studies. The content validity of all included questionnaires was also evaluated using the reviewers' rating. The quality of the body of evidence was evaluated for the overall construct of each questionnaire (e.g., total PA), moderate-to-vigorous physical activity (MVPA) and walking using a modified Grading of Recommendation, Assessment, Development, and Evaluation (GRADE) approach. RESULTS: In total, 56 articles on 40 different questionnaires (14 from the previous review and 26 from the update) were included. Reliability was assessed for 22, measurement error for four and hypotheses testing for construct validity for 38 different questionnaires. Evidence for responsiveness was available for one questionnaire. For many questionnaires, only one measurement property was assessed in only a single study. Sufficient content validity was considered for 22 questionnaires. All questionnaires displayed large measurement errors. Only versions of two questionnaires showed both sufficient reliability and hypotheses testing for construct validity, namely the Physical Activity Scale for the Elderly (PASE; English version, Turkish version) for the assessment of total PA, and the Physical Activity and Sedentary Behavior Questionnaire (PASB-Q; English version) for the assessment of MVPA. The quality of evidence for these results ranged from very low to high. CONCLUSIONS: Until more high-quality evidence is available, we recommend the PASE for measuring total PA and the PASB-Q for measuring MVPA in older adults. However, they are not equally qualified among different languages. Future studies on the most promising questionnaires should cover all relevant measurement properties. We recommend using and improving existing PA questionnaires-instead of developing new ones-and considering the strengths and weaknesses of each PA measurement instrument for a particular purpose.


Subject(s)
Exercise/physiology , Geriatric Assessment , Surveys and Questionnaires/standards , Aged , Humans , Middle Aged , Reproducibility of Results
8.
J Phys Act Health ; 16(7): 525-532, 2019 06 27.
Article in English | MEDLINE | ID: mdl-31154894

ABSTRACT

BACKGROUND: Limited research reports on the relationship between body mass index (BMI) and physical activity (PA), sedentary behavior (SB), sleep, and gross motor skills (GMS) in low- and middle-income countries. The aim of this study was to (1) describe BMI, PA, SB, sleep duration, and GMS proficiency in South African preschool children and (2) identify relationships between variables. METHODS: BMI, including z scores for height, weight, and BMI were determined. Seven-day PA, SB, and sleep were measured using accelerometry. GMS were assessed using the Test of Gross Motor Development (second edition). Associations were explored by comparing sleep, PA, SB, and GMS between BMI tertiles using the Kruskal-Wallis test. RESULTS: Most (86%) children (n = 78, 50% boys) had a healthy BMI (15.7 [1.3] kg/m2). Children spent 560.5 (52.9) minutes per day in light- to vigorous-intensity PA and 90.9 (30.0) minutes per day in moderate- to vigorous-intensity PA; most (83%) met the current PA guideline. Nocturnal sleep duration was low (9.28 [0.80] h/d). Although daytime naps increased 24-hour sleep duration (10.17 [0.71] h/d), 38% were classified as short sleepers. Around half (54.9%) of participants complied with both PA and sleep guidelines. No associations between variables were found. CONCLUSION: Despite being lean, sufficiently active, and having adequate GMS, many children were short sleepers, highlighting a possible area for intervention.


Subject(s)
Accelerometry/methods , Body Composition/physiology , Body Mass Index , Exercise/physiology , Motor Skills/physiology , Sedentary Behavior , Sleep/physiology , Child, Preschool , Cross-Sectional Studies , Female , Humans , Male , Urban Population
9.
BMC Public Health ; 19(1): 314, 2019 Mar 18.
Article in English | MEDLINE | ID: mdl-30885162

ABSTRACT

BACKGROUND: Communities in low-to-middle income countries undergoing rapid urbanisation as well as nutrition transition are particularly at risk for associated health issues such as overweight and obesity. South Africa has a double-burden of both under- and over-nutrition, creating some uncertainty as to where to direct healthcare interventions. Therefore, providing anthropometric data in vulnerable populations, such as in early childhood, is much needed. METHODS: This observational study assessed height, weight, head circumference and age-adjusted BMI in 1785 Grade 4 (9.5 ± 0.7 years old) learners from 12 schools in two different areas in South Africa. RESULTS: Overall, the results of this study found a higher prevalence of overnutrition (>95th percentile for age-adjusted BMI) than undernutrition (<15th percentile for age-adjusted BMI), 27.3% versus 12.4% respectively. Although the boys were significantly older and taller than the girls in this sample, there were no significant sex differences between boys and girls for BMI (19.9 kg/m2 ± 6.0 vs 20 kg/m2 ± 5.8, p = 0.59). Significant differences were found between peri-urban and urban areas for undernutrition (16.1% versus 9.5%, p < 0.001) and overnutrition (9.7% versus 41.2%, p < 0.001). CONCLUSION: South African children living in urban areas are particularly vulnerable to high rates of overweight and obesity. Therefore, interventions that are area and context specific are needed to address the issues of malnutrition in South Africa.


Subject(s)
Anthropometry , Pediatric Obesity/epidemiology , Poverty Areas , Child , Female , Humans , Male , Schools , South Africa/epidemiology , Urban Population/statistics & numerical data , Vulnerable Populations
10.
Sports Med ; 48(10): 2317-2346, 2018 Oct.
Article in English | MEDLINE | ID: mdl-30094797

ABSTRACT

BACKGROUND: In order to assess physical activity (PA) during pregnancy, it is important to choose the instrument with the best measurement properties. OBJECTIVES: To systematically summarize, appraise, and compare the measurement properties of all self-administered questionnaires assessing PA in pregnancy. METHODS: We searched PubMed, Embase, and SPORTDiscus with the following inclusion criteria: (i) the study reported at least one measurement property (reliability, criterion validity, construct validity, responsiveness) of a self-administered questionnaire; (ii) the questionnaire intended to measure PA; (iii) the questionnaire was evaluated in healthy pregnant women; and (iv) the study was published in English. We evaluated results, quality of individual studies, and quality of evidence using a standardized checklist (Quality Assessment of Physical Activity Questionnaires [QAPAQ]) and the GRADE (Grading of Recommendation, Assessment, Development, and Evaluation) approach. RESULTS: Seventeen articles, reporting 18 studies of 11 different PA questionnaires (17 versions), were included. Most questionnaire versions showed insufficient measurement properties. Only the French and Turkish versions of the Pregnancy Physical Activity Questionnaire (PPAQ) showed both sufficient reliability and construct validity. However, all versions of the PPAQ pooled together showed insufficient construct validity. The quality of individual studies was usually high for reliability but varied considerably for construct validity. Overall, the quality of evidence was very low to moderate. CONCLUSIONS: We recommend the PPAQ to assess PA in pregnancy, although the pooled results revealed insufficient construct validity. The lack of appropriate standards in data collection and processing criteria for objective devices in measuring PA during pregnancy attenuates the quality of evidence. Therefore, research on the validity of comparison instruments in pregnancy followed by consensus on validation reference criteria and standards of PA measurement is needed.


Subject(s)
Exercise , Pregnancy , Surveys and Questionnaires/standards , Female , Humans , Reproducibility of Results
11.
Matern Child Health J ; 22(8): 1190-1199, 2018 08.
Article in English | MEDLINE | ID: mdl-29516229

ABSTRACT

Objectives Research indicates the beneficial effects of physical activity during pregnancy on maternal health, although controversy still exists regarding its influence on birth outcomes. Little research has been done to objectively measure physical activity during pregnancy in black African women from low-to-middle income countries. The purpose of this study was to examine the association between physical activity and maternal and birth outcomes in this unique population. Methods This observational, longitudinal study assessed total physical activity using a hip-mounted triaxial accelerometer at 14-18 weeks (second trimester, n = 120) and 29-33 weeks (third trimester, n = 90) gestation. Physical activity is expressed as gravity-based acceleration units (mg). Maternal outcomes included both weight and weight gain at 29-33 weeks gestation. Birth outcomes included gestational age, birth weight, ponderal index and Apgar score, measured within 48 h of delivery. Results There was a significant decline in physical activity from the second to the third trimester (12.8 ± 4.1 mg vs. 9.7 ± 3.6 mg, p ≤ 0.01). Physical activity at 29-33 weeks as well as a change in PA was inversely associated with weight change at 29-33 weeks (ß = - 0.24; 95% CI - 0.49; - 0.00; p = 0.05 and ß = - 0.36; 95% CI - 0.62; - 0.10; p = 0.01, respectively). No significant associations were found between physical activity and birth outcomes. Conclusions for Practice Physical activity during pregnancy may be an effective method to control gestational weight gain, whilst presenting no adverse risk for fetal development, in women from a low-income urban setting.


Subject(s)
Black People/statistics & numerical data , Exercise , Fetal Development , Pregnancy Outcome/epidemiology , Premature Birth/epidemiology , Adult , Female , Humans , Infant, Newborn , Longitudinal Studies , Pregnancy , Pregnancy Trimester, Third , South Africa/epidemiology , Young Adult
12.
Cardiovasc J Afr ; 28(6): 397-403, 2017.
Article in English | MEDLINE | ID: mdl-28906530

ABSTRACT

Optimal maternal body composition during pregnancy is a public health priority due to its implications on maternal health and infant development. We therefore aimed to conduct a systematic review of randomised, controlled trials, and case-control and cohort studies using lifestyle interventions to improve body composition in developing countries. Of the 1 708 articles that were searched, seven studies, representing three countries (Brazil, Iran and Argentina), were included in the review. Two articles suggested that intervention with physical activity during pregnancy may significantly reduce maternal weight gain, and five studies were scored as being of poor quality. This systematic review highlights the lack of research within developing countries on lifestyle interventions for the management of excessive weight gain during pregnancy. Similar reviews from developed countries demonstrate the efficacy of such interventions, which should be confirmed using well-designed studies with appropriate intervention methods in resource-limited environments.


Subject(s)
Body Composition , Developing Countries , Diet, Healthy , Exercise , Life Style , Maternal Nutritional Physiological Phenomena , Obesity/prevention & control , Pregnancy Complications/prevention & control , Risk Reduction Behavior , Weight Gain , Adult , Female , Health Status , Humans , Nutritional Status , Obesity/epidemiology , Obesity/physiopathology , Pregnancy , Pregnancy Complications/epidemiology , Pregnancy Complications/physiopathology , Risk Factors , Treatment Outcome , Young Adult
13.
Fam Community Health ; 40(3): 236-244, 2017.
Article in English | MEDLINE | ID: mdl-28525444

ABSTRACT

This study provides a health and risk profile of blue- (BCWs) and white-collar workers (WCWs). Health screening data (n = 603; age 38.2 ± 9.7 years) included cholesterol and glucose finger-prick test, blood pressure, body mass index, and self-reported stress levels and readiness to change. Blue-collar workers were significantly older and had higher blood pressure readings and were more likely to develop hypertension (odds ratio [OR]: 1.72; 95% confidence interval [CI]: 1.05-2.81; P = .03), but less likely to present with hypercholesterolemia (OR: 0.50; 95% CI: 0.31-0.81; P = .01) and overweight/obesity (OR: 0.65; 95% CI: 0.42-0.99; P = .047). White-collar workers showed significantly higher cholesterol and stress levels. This study highlights the importance of occupation type in workplace health screening and intervention planning.


Subject(s)
Cardiovascular Diseases/etiology , Health Promotion/methods , Mass Screening/methods , Occupations/trends , Adult , Female , Humans , Male , Risk Factors , Self Report
14.
PLoS One ; 12(5): e0177996, 2017.
Article in English | MEDLINE | ID: mdl-28552977

ABSTRACT

The physiological and biomechanical changes that occur during pregnancy make accurate measurement of physical activity (PA) a challenge during this unique period. The Global Physical Activity Questionnaire (GPAQ) has been used extensively in low-to-middle income countries, but has never been validated in a pregnant population. In this longitudinal study, 95 pregnant women (mean age: 29.5±5.7 years; BMI: 26.9±5.0 kg/m2) completed the GPAQ and were asked to wear an accelerometer for 7 days at two time points during pregnancy (14-18 and 29-33 weeks gestation). There was a significant difference between accelerometry and GPAQ when measuring moderate-to-vigorous physical activity (MVPA) at 29-33 weeks gestation (16.6 vs 21.4 min/day; p = 0.02) as well as sedentary behaviour (SB) at both 14-18 weeks (457.0 vs 300 min/day; p < 0.01) and 29-33 weeks gestation (431.5 vs 300 min/day; p < 0.01). There was poor agreement between the GPAQ and accelerometry for both PA and SB at both time points (ICC: -0.05-0.08). Bland Altman plots indicated that the GPAQ overestimates PA by 14.8 min/day at 14-18 weeks and by 15.8 min/day at 29-33 weeks gestation. It underestimates SB by 127.5 min/day at 14-18 weeks and by 89.2 min/day at 29-33 weeks gestation. When compared to accelerometry, the GPAQ shows poor agreement and appears to overestimate PA and underestimate SB during pregnancy.


Subject(s)
Exercise , Adult , Female , Humans , Pregnancy , Surveys and Questionnaires , Young Adult
15.
J Phys Act Health ; 14(5): 329-335, 2017 05.
Article in English | MEDLINE | ID: mdl-28169573

ABSTRACT

BACKGROUND: Although physical activity during pregnancy may be beneficial, the prenatal period is a vulnerable time for decreasing physical activity levels and increasing sedentary time. METHODS: This longitudinal cohort study measured physical activity using the Global Physical Activity Questionnaire (GPAQ) in singleton, pregnant women in the second (14-18 wk gestation; n = 332) and third trimester (29-33 wk; n = 256). RESULTS: There was a significant decrease in total MVPA (MET mins/wk) between the second and third trimester (P = .01). The majority of physical activity time was spent in walking for transport (80%), and less than 2% in recreational activities. In both trimesters, being married was inversely associated with walking for transport (second trimester: ß = -0.12 95% CI = -0.31 to -0.02, third trimester: ß = -0.17 95% CI = -0.47 to -0.07) and owning a car was positively associated with recreational physical activity (second trimester: ß = 0.16 95% CI = 0.02 to 0.32, third trimester: ß = 0.17 95% CI = 0.04 to 0.27). The women spent an average of 5 hours per day sitting. CONCLUSIONS: The low and declining levels of physical activity during pregnancy in this population are a concern. Interventions that include lifestyle education and provision of accessible recreational physical activity programs for pregnant women are needed.


Subject(s)
Obesity/prevention & control , Recreation , Sedentary Behavior , Walking , Adult , Black People/statistics & numerical data , Cohort Studies , Female , Humans , Longitudinal Studies , Mothers/statistics & numerical data , Pregnancy , Pregnancy Trimester, Second , Pregnancy Trimester, Third , Pregnant Women , South Africa , Surveys and Questionnaires , Weight Gain
16.
BMC Womens Health ; 16(1): 66, 2016 10 18.
Article in English | MEDLINE | ID: mdl-27756289

ABSTRACT

BACKGROUND: Over the past decade the prevalence of gestational diabetes mellitus (GDM) has increased rapidly in both developed and developing countries and has become a growing health concern worldwide. A recent systematic review highlighted the paucity of data available on the prevalence and potential burden of GDM in Africa, which was emphasised by the fact that only 11 % of African countries were represented in the review. In South Africa, the prevalence of GDM remains unknown, although one would estimate it to be high due to urbanisation and the growing obesity epidemic. In addition, the association between physical activity (PA), sedentary behaviour (SB) and GDM is not well understood in this population. The aim of the proposed research is to determine whether there is an association between physical activity, sedentary behaviour and risk for GDM in pregnant black women living in urban Soweto in South Africa. METHODS/DESIGN: This prospective cohort study of 80 participants will include pregnant women from Soweto enrolled into the Soweto First 1000 Days Study (S1000) at the MRC/Wits Departmental Pathways for Health Research Unit (DPHRU) based at the Chris Hani Baragwanath Academic Hospital in Soweto, South Africa. Women will be enrolled into the S1000 Study at <14 weeks gestation, and baseline demographic and anthropometric measures will be taken at 14-18 weeks gestation (visit 1). In addition, participants will complete the Global Physical Activity Questionnaire (GPAQ) to measure self-reported physical activity and will be given an ActiGraph accelerometer to wear for seven days to measure habitual physical activity at 14-18 weeks gestation (visit 1), and at 28-33 weeks gestation (visit 3). At visit 2 (24-28 weeks gestation) an oral glucose tolerance test (OGTT) will be conducted. DISCUSSION: Physical activity during pregnancy has been associated with minimum risk to a pregnancy and may play a role in improving glucose metabolism and therefore decreasing risk for GDM. This is particularly pertinent to assess amongst black South African women who are a potentially high risk population due to the high prevalence of obesity and type 2 diabetes (T2D). The findings of the study will assist in developing targeted interventions as well as feasible healthcare strategies.


Subject(s)
Diabetes, Gestational/prevention & control , Exercise/physiology , Risk Assessment/methods , Adult , Body Mass Index , Female , Humans , Middle Aged , Pregnancy , Pregnant Women/psychology , South Africa
17.
BMC Pregnancy Childbirth ; 16(1): 326, 2016 10 26.
Article in English | MEDLINE | ID: mdl-27784276

ABSTRACT

BACKGROUND: Physical activity (PA) during pregnancy has been shown to be associated with several positive effects for mother, fetus, and offspring. Heart rate variability (HRV) is a noninvasive and surrogate marker to determine fetal overall health and the development of fetal autonomic nervous system. In addition, it has been shown to be significantly influenced by maternal behavior. However, the influence of maternal PA on HRV has not yet been systematically reviewed. Therefore, the aim of this systematic review was to assess the influence of regular maternal PA on maternal, fetal or infant HRV. METHODS: A systematic literature search following a priori formulated criteria of studies that examined the influence of regular maternal PA (assessed for a minimum period of 6 weeks) on maternal, fetal or infant HRV was performed in the databases Pubmed and SPORTDiscus. Quality of each study was assessed using the standardized Quality Assessment Tool for Quantitative Studies (QATQS). RESULTS: Nine articles were included into the present systematic review: two intervention studies, one prospective longitudinal study, and six post-hoc analysis of subsets of the longitudinal study. Of these articles four referred to maternal HRV, five to fetal HRV, and one to infant HRV. The overall global rating for the standardized quality assessment of the articles was moderate to weak. The articles regarding the influence of maternal PA on maternal HRV indicated contrary results. Five of five articles regarding the influence of maternal PA on fetal HRV showed increases of fetal HRV on most parameters depending on maternal PA. The article referring to infant HRV (measured one month postnatal) showed an increased HRV. CONCLUSIONS: Based on the current evidence available, our overall conclusion is that the hypothesis that maternal PA influences maternal HRV cannot be supported, but there is a trend that maternal PA might increase fetal and infant HRV (clinical conclusion). Therefore, we recommend that further, high quality studies addressing the influence of maternal PA on HRV should be performed (methodological conclusion).


Subject(s)
Exercise/physiology , Heart Rate , Pregnancy/physiology , Female , Heart Rate, Fetal , Humans , Infant
18.
BMC Pregnancy Childbirth ; 16(1): 174, 2016 07 19.
Article in English | MEDLINE | ID: mdl-27435173

ABSTRACT

BACKGROUND: Despite the benefits of physical activity during pregnancy, the physiological and psychological changes that occur during this unique period may put women at greater risk of being sedentary. Lifestyle and environmental transitions have left black South African women at increased risk of physical inactivity and associated health risks. Therefore, the aim of this qualitative study was to describe the beliefs regarding physical activity during pregnancy in an urban African population. METHODS: Semi-structured interviews (n = 13) were conducted with pregnant black African women during their third trimester. Deductive thematic analysis was completed based on the Theory of Planned Behaviour. Coding and analysis was completed with the assistance of ATLAS.ti software. RESULTS: Participants had a mean age of 28 (19-41) years, and a mean BMI of 30 (19.6-39.0) kg/m(2). Although the majority of women believed that physical activity was beneficial, this did not appear to translate into behaviour. Reported reasons for this included barriers such as pregnancy-related discomforts, lack of time, money and physical activity related education, all of which can contribute to a reduced perceived control to become active. Opportunities to participate in group exercise classes was a commonly reported facilitator for becoming active. In addition, influential role players, such as family, friends and healthcare providers, as well as cultural beliefs, reportedly provided the women with vague, conflicting and often discouraging advice about physical activity during pregnancy. CONCLUSIONS: This study provides new theoretical insight on the beliefs of urban South African pregnant women regarding physical activity. Findings from this study suggest a holistic approach to improve physical activity compliance during pregnancy, inclusive of physical activity education and exercise opportunities within a community setting. This study presents critical formative work upon which contextually and culturally sensitive interventions can be developed.


Subject(s)
Black People/psychology , Exercise/psychology , Health Knowledge, Attitudes, Practice/ethnology , Pregnant Women/psychology , Adult , Female , Humans , Pregnancy , Pregnant Women/ethnology , Qualitative Research , Social Support , South Africa , Urban Population , Young Adult
19.
BMC Pregnancy Childbirth ; 15: 245, 2015 Oct 07.
Article in English | MEDLINE | ID: mdl-26446911

ABSTRACT

BACKGROUND: There is compelling evidence for the benefits of regular exercise during pregnancy, and medical practitioners (MPs) can play an important role in changing antenatal health behaviours. The purpose of this study was to assess the knowledge, attitudes and beliefs of South African MPs towards exercise during pregnancy. METHODS: A convenience sample of ninety-six MPs working in the private health care sector, including General Practitioners (n = 58), Obstetricians/Gynaecologists (n = 33) and other Specialists (n = 5), participated in this cross sectional, descriptive survey study. A 33-item questionnaire was distributed manually at medical practices and via email to an on-line survey tool. Descriptive statistics and frequency tables were calculated for all questions. Chi-squared and Fisher's exact statistical tests were used to determine the differences in response by age, speciality and years of practice (p < 0.05). RESULTS: The majority of practitioners (98%) believe that exercise during pregnancy is beneficial, and were knowledgeable on most of the expected benefits. Seventy-eight percent believed that providing exercise advice is an important part of prenatal care, however only 19% provided informational pamphlets and few (24%) referred to exercise specialists. A large majority (83%) were unaware of the recommended exercise guidelines. Although age and years of practice played no role in this awareness, practitioners who focussed on obstetrics and gynaecology were more likely to be aware of the current guidelines, than those in general practice (p < 0.001). CONCLUSION: Although the MPs were largely positive towards exercise during pregnancy, their advice did not always align with the current guidelines. Therefore, better dissemination of available research is warranted, to bridge the gap between clinical knowledge and current recommendations for physical activity promotion.


Subject(s)
Attitude of Health Personnel , Exercise , General Practice , Gynecology , Health Knowledge, Attitudes, Practice , Obstetrics , Adult , Cross-Sectional Studies , Female , Guidelines as Topic , Humans , Male , Middle Aged , Patient Education as Topic , Pregnancy , Prenatal Care , South Africa , Surveys and Questionnaires
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