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1.
Glob Health Action ; 17(1): 2325726, 2024 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-38577879

RESUMO

Increasing evidence suggests that urban health objectives are best achieved through a multisectoral approach. This approach requires multiple sectors to consider health and well-being as a central aspect of their policy development and implementation, recognising that numerous determinants of health lie outside (or beyond the confines of) the health sector. However, collaboration across sectors remains scarce and multisectoral interventions to support health are lacking in Africa. To address this gap in research, we conducted a mixed-method systematic review of multisectoral interventions aimed at enhancing health, with a particular focus on non-communicable diseases in urban African settings. Africa is the world's fastest urbanising region, making it a critical context in which to examine the impact of multisectoral approaches to improve health. This systematic review provides a valuable overview of current knowledge on multisectoral urban health interventions and enables the identification of existing knowledge gaps, and consequently, avenues for future research. We searched four academic databases (PubMed, Scopus, Web of Science, Global Health) for evidence dated 1989-2019 and identified grey literature from expert input. We identified 53 articles (17 quantitative, 20 qualitative, 12 mixed methods) involving collaborations across 22 sectors and 16 African countries. The principle guiding the majority of the multisectoral interventions was community health equity (39.6%), followed by healthy cities and healthy urban governance principles (32.1%). Targeted health outcomes were diverse, spanning behaviour, environmental and active participation from communities. With only 2% of all studies focusing on health equity as an outcome and with 47% of studies published by first authors located outside Africa, this review underlines the need for future research to prioritise equity both in terms of research outcomes and processes. A synthesised framework of seven interconnected components showcases an ecosystem on multisectoral interventions for urban health that can be examined in the future research in African urban settings that can benefit the health of people and the planet.Paper ContextMain findings: Multisectoral interventions were identified in 27.8% of African countries in the African Union, targeted at major cities with five sectors present at all intervention stages: academia or research, agriculture, government, health, and non-governmental.Added knowledge: We propose a synthesised framework showcasing an ecosystem on multisectoral interventions for urban health that can guide future research in African urban settings.Global health impact for policy and action: This study reveals a crucial gap in evidence on evaluating the long-term impact of multisectoral interventions and calls for partnerships involving various sectors and robust community engagement to effectively deliver and sustain health-promoting policies and actions.


Assuntos
Saúde da População Urbana , Humanos , África , Cidades , Política de Saúde
2.
Glob Public Health ; 18(1): 2264968, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-37801722

RESUMO

COVID-19 prevention measures including lockdowns, school closures, and restricted movement disrupted young people's lives. This longitudinal qualitative study conducted in Soweto, South Africa aimed to explore young people's knowledge and perceptions of COVID-19, vaccination, and the impact of infections. A convenience sample of 30 young black people (n = 15 men; n = 15 women, aged 16-21 years) from Soweto participated in 24 focus group discussions (FGDs), conducted in six phases - each phase had four FGDs stratified by gender and age. Young people's understanding of COVID-19 deepened throughout the study, however, did not always translate into adherence (following the government's COVID-19 prevention measures). Although deemed inadequate, TV and radio were preferred over internet COVID-19 information. Parents, teachers, and schools were trusted sources of information. Vaccines and limited access to information attributed to low-risk perception, while new COVID-19 variants attributed to high-risk perception. A low-risk perception and conspiracy theories contributed to non-adherence (disregarding COVID-19 preventative measures provided by the government), particularly among young men. Accessing reliable information that considers young people's lives and their living context is important. Communities, scientists, and policymakers must learn from the COVID-19 experience and implement localised preventive strategies for education, awareness, and economic support in future emergencies.


Assuntos
COVID-19 , Masculino , Humanos , Feminino , Adolescente , COVID-19/epidemiologia , África do Sul/epidemiologia , SARS-CoV-2 , Controle de Doenças Transmissíveis
3.
BMJ Nutr Prev Health ; 6(1): 39-45, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37484540

RESUMO

Introduction: The first 1000 days of life are a critical period of growth and development that have lasting implications for health, cognitive, educational and economic outcomes. In sub-Saharan Africa, gender and social norms are such that many men have little engagement with maternal and child health and nutrition during pregnancy and early childhood. This study explores how men perceive their role in three sites in sub-Saharan Africa. Methods: Secondary qualitative analysis of 10 focus group discussions with 76 men in Burkina Faso, Ghana and South Africa. Data were thematically analysed to explore men's perceptions of maternal and child health and nutrition. Results: Men considered themselves 'providers' and 'advisors' within their families, particularly of finances, food and medicines. They also indicated that this advice was out of care and concern for their families' health. There were similarities in how the men perceive their role. Differences between men living in rural and urban settings included health priorities, the advice and the manner in which it was provided. Across all settings, men wanted to be more involved with maternal and child health and nutrition. Challenges to doing so included stigma and proscribed social gender roles. Conclusion: Men want a greater engagement in improving maternal and child health and nutrition but felt that their ability to do so was limited by culture-specified gender roles, which are more focused on providing for and advising their families. Involving both men and women in intervention development alongside policymakers, health professionals and researchers is needed to improve maternal and child health and nutrition.

4.
PLOS Glob Public Health ; 3(7): e0001429, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37467201

RESUMO

BACKGROUND AND OBJECTIVES: Non-communicable diseases (NCDs) are taking a toll on Africa's youth at younger ages than in other regions. These are attributed to risk factors that usually advance in adolescence, such as unhealthy diets and reduced physical activity. Young adults in South Africa, particularly women, tend to be sedentary, consume energy-dense diets low in micronutrients, and are more likely to develop NCDs much earlier in life than those in high-income countries. With an intersectionality perspective, this study explored young adults' barriers and solutions to addressing these risk factors in Soweto. SETTING: Soweto, Johannesburg, South Africa, is one of the most well-known historically disadvantaged townships known for its established communities, and socioeconomic and cultural diversity. Design: A qualitative investigation utilising focus group discussions (FGDs) with a topic guide. FGDs were transcribed verbatim and thematically analysed using a combination of deductive and inductive approaches. PARTICIPANTS: 15 Men and 15 women 18-24 years of age living in Soweto (n = 30). Results: South African young adults have a basic understanding of the significance of nutrition, exercise, and their ties to health. However, numerous barriers (like taste, affordability and crime) to such behaviours were reported, arising from the participants' personal, domestic, social, and local community levels. Young women experienced sexism and had safety concerns while exercising in the streets, while young men tended to describe themselves as lazy to engage in exercise as they find it boring. CONCLUSIONS: Young adults face a multitude of intersecting barriers, making it difficult to adopt or sustain health-promoting behaviours. It is important that potential solutions focus on the intersections of barriers to healthy eating and physical activity in order to provide more realistic support for such behaviours.

5.
J Occup Environ Med ; 65(8): e571-e577, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-37278149

RESUMO

OBJECTIVE: There is limited evidence, particularly qualitative analysis, of health and wellness interventions within the South African workplace. The purpose of this study is to explore whether health and wellness coaching when offered as part of an employee wellness program has potential for developing lifestyle change in a South African workplace. METHODS: There were four, 45-minute focus group discussions, where employees discussed their experiences of the workplace health and wellness intervention program. RESULTS: Main categories identified from the coding of the transcripts were purpose of the health and wellness coaching program, as well as employees' program experience and improvement to the program. Common barriers to engagement, positive and negative experiences, and suggested improvements were defined by the employees. CONCLUSIONS: The study highlighted the need of understanding employee perceptions in the development and implementation of a workplace health and wellness program.


Assuntos
Tutoria , Saúde Ocupacional , Humanos , Promoção da Saúde , Comportamentos Relacionados com a Saúde , Grupos Focais , Local de Trabalho
6.
Nutrients ; 15(5)2023 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-36904075

RESUMO

OBJECTIVE: We set out to evaluate the association between nutrient patterns and general adiposity in black South African adolescents and adults and to determine whether the interactions are longitudinally sustained over 24 months. METHODS: Principal Component Analysis (PCA) was used to derive the nutrient patterns of 750 participants (250 adolescents between 13 and 17 years old and 500 adults who were 27 years or 45+ years old). PCA was applied to 25 nutrients, computed from the quantified food frequency questionnaire (QFFQ) over a 24 months period. RESULTS: The nutrient patterns between adolescents and adults were similar over time; however, their associations with BMI were different. Among the adolescents, only the "plant-driven nutrients pattern" was significantly associated with a 0.56% (95% CI (0.33; 0.78); p < 0.001) increase in BMI. Among the adults, the "plant-driven nutrient pattern" (0.43% (95% CI (0.03; 0.85); p < 0.001) and the "fat-driven nutrients pattern" (0.18% (95% CI (0.06; 0.29); p < 0.001) were significantly associated with a BMI increase. Furthermore, the "plant-driven nutrient pattern", "fat-driven nutrient pattern" and the animal-driven nutrient pattern revealed sex differences in their association with BMI. CONCLUSION: Urban adolescents and adults had consistent nutrient patterns, but their BMI relationships changed with age and gender, an important finding for future nutrition interventions.


Assuntos
Dieta , Obesidade , Animais , Masculino , Feminino , Índice de Massa Corporal , África do Sul , Nutrientes
7.
J Transp Health ; 28: 101558, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36776485

RESUMO

Active travel, as a key form of physical activity, can help offset noncommunicable diseases as rapidly urbanising countries undergo epidemiological transition. In Africa a human mobility transition is underway as cities sprawl and motorization rises and preserving active travel modes (walking, cycling and public transport) is important for public health. Across the continent, public transport is dominated by paratransit, privately owned informal modes serving the general public. We reviewed the literature on active travel and paratransit in African cities, published from January 2008 to January 2019. We included 19 quantitative, 14 mixed-method and 8 qualitative studies (n = 41), narratively synthesizing the quantitative data and meta-ethnographically analysing the qualitative data. Integrated findings showed that walking was high, cycling was low and paratransit was a critical mobility option for poor peripheral residents facing long livelihood-generation journeys. As an indigenous solution to dysfunctional mobility systems shaped by colonial and apartheid legacies it was an effective connector, penetrating areas unserved by formal public transport and helping break cycles of poverty. From a public health perspective, it preserved active travel by reducing mode-shifting to private vehicles. Yet many city authorities viewed it as rogue, out of keeping with the 'ideal modern city', adopting official anti-paratransit stances without necessarily considering the contribution of active travel to public health. The studies varied in quality and showed uneven geographic representation, with data from Central and Northern Africa especially sparse; notably, there was a high prevalence of non-local authors and out-of-country funding. Nevertheless, drawing together a rich cross-disciplinary set of studies spanning over a decade, the review expands the literature at the intersection of transport and health with its novel focus on paratransit as a key active travel mode in African cities. Further innovative research could improve paratransit's legibility for policymakers and practitioners, fostering its inclusion in integrated transport plans.

8.
Cardiovasc J Afr ; 33(4): 200-219, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35789240

RESUMO

Due to the increasing non-communicable disease burden in Africa, several strategies that target the major lifestyle and physiological risk factors have been implemented to combat such diseases. The Healthy Aging Adult South Africa report card systematically reviews national and regional prevalence data of middle-aged South African adults (45-65 years) published between 2013 and 2020 on diet, physical activity, tobacco use and alcohol consumption, obesity, hypertension, dyslipidaemia and diabetes mellitus. Each indicator was assigned two grades, (1) based on the availability of prevalence data, and (2) based on whether policies have been proposed and implemented for the respective indicators. Alcohol consumption, obesity, hypertension and diabetes received an A grade for the availability of prevalence data. Tobacco use and diet received an A grade for policy and implementation. Gaps have been identified that need to be filled by future research focusing on continued surveillance of all indicators in order to inform and implement effective policies.


Assuntos
Diabetes Mellitus , Envelhecimento Saudável , Hipertensão , Adulto , Diabetes Mellitus/diagnóstico , Diabetes Mellitus/epidemiologia , Exercício Físico , Feminino , Humanos , Hipertensão/diagnóstico , Hipertensão/epidemiologia , Masculino , Pessoa de Meia-Idade , Obesidade/epidemiologia , Prevalência , Fatores de Risco , África do Sul/epidemiologia
10.
Soc Sci Med ; 292: 114545, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34802781

RESUMO

Travel has individual, societal and planetary health implications. We explored socioeconomic and gendered differences in travel behaviour in Africa, to develop an understanding of travel-related inequity. We conducted a mixed-methods systematic review (PROSPERO CRD42019124802). In 2019, we searched MEDLINE, TRID, SCOPUS, Web of Science, LILACS, SciELO, Global Health, Africa Index Medicus, CINAHL and MediCarib for studies examining travel behaviour by socioeconomic status and gender in Africa. We appraised study quality using Critical Appraisal Skills Programme checklists. We synthesised qualitative data using meta-ethnography, followed by a narrative synthesis of quantitative data, and integrated qualitative and quantitative strands using pattern matching principles. We retrieved 103 studies (20 qualitative, 24 mixed-methods, 59 quantitative). From the meta-ethnography, we observed that travel is: intertwined with social mobility; necessary to access resources; associated with cost and safety barriers; typified by long distances and slow modes; and dictated by gendered social expectations. We also observed that: motorised transport is needed in cities; walking is an unsafe, 'captive' mode; and urban and transport planning are uncoordinated. From these observations, we derived hypothesised patterns that were tested using the quantitative data, and found support for these overall. In lower socioeconomic individuals, travel inequity entailed reliance on walking and paratransit (informal public transport), being unable to afford travel, travelling less overall, and travelling long distances in hazardous conditions. In women and girls, travel inequity entailed reliance on walking and lack of access to private vehicles, risk of personal violence, societally-imposed travel constraints, and household duties shaping travel. Limitations included lack of analytical rigour in qualitative studies and a preponderance of cross-sectional quantitative studies (offering a static view of an evolving process). Overall, we found that travel inequity in Africa perpetuates socioeconomic and gendered disadvantage. Proposed solutions focus on improving the safety, efficiency and affordability of public transport and walking.


Assuntos
Doença Relacionada a Viagens , Viagem , África , Antropologia Cultural , Estudos Transversais , Feminino , Humanos , Fatores Socioeconômicos
11.
J Phys Act Health ; 19(1): 4-11, 2022 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-34883465

RESUMO

BACKGROUND: South Africa launched 24-hour movement guidelines for birth to 5 years in 2018. Perceptions of these guidelines were assessed as part of the dissemination process with community-based organizations in 2019. METHODS: Fifteen dissemination workshops were held with community-based organization representatives and a range of stakeholders. Discussions were held with workshop attendees (n = 281) to obtain qualitative feedback on the guidelines and workshop. Six follow-up focus groups (n = 28) were conducted to obtain additional feedback on the guidelines and their dissemination. Discussions and focus groups were thematically analyzed. RESULTS: Participants recognized the importance of the guidelines for the health and development of young South African children. Participants' perceptions of the guidelines were consistently positive. The participants acknowledged the alignment of the guidelines with other South African programs and initiatives, and that they addressed gaps. Screen time and sleep were identified as the behaviors needing particular attention among young South African children. The negative impact of COVID-19 on young children's movement behaviors was acknowledged, especially regarding screen time. CONCLUSION: These findings provide evidence of stakeholders' positive perceptions of the South African guidelines and support the dissemination and implementation of these guidelines for the promotion of early childhood health and development in South Africa.


Assuntos
COVID-19 , Exercício Físico , Criança , Pré-Escolar , Humanos , Pesquisa Qualitativa , SARS-CoV-2 , Tempo de Tela , África do Sul
12.
JMIR Res Protoc ; 10(7): e26739, 2021 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-34255729

RESUMO

BACKGROUND: The increasing burden of noncommunicable diseases that are prevalent in low- and middle-income countries (LMICs) is largely attributed to modifiable behavioral risk factors such as unhealthy diets and insufficient physical activity (PA). The adolescent stage, defined as 10 to 24 years of age, is an important formative phase of life and offers an opportunity to reduce the risk of noncommunicable diseases across the life course and for future generations. OBJECTIVE: The aim of this paper is to describe a protocol for a study using a convergent mixed methods design to explore exposures in the household, neighborhood, school, and the journey from home to school that may influence diet and PA behaviors in adolescents from LMICs. METHODS: Male and female adolescents (n≥150) aged between 13 and 24 years will be recruited from selected high schools or households in project site countries to ensure the socioeconomic diversity of perspectives and experiences at the individual, home, and neighborhood levels. The project will be conducted at 5 sites in 4 countries: Kenya, Cameroon, Jamaica, and South Africa (Cape Town and Johannesburg). Data on anthropometric measures, food intake, and PA knowledge and behavior will be collected using self-report questionnaires. In addition, a small number of learners (n=30-45) from each site will be selected as citizen scientists to capture data (photographs, audio notes, text, and geolocations) on their lived experiences in relation to food and PA in their homes, the journey to and from school, and the school and neighborhood environments using a mobile app, and for objective PA measurements. In-depth interviews will be conducted with the citizen scientists and their caregivers to explore household experiences and determinants of food intake and foodways, as well as the PA of household members. RESULTS: The study described in this protocol paper was primarily funded through a UK National Institute for Health Research grant in 2017 and approved by the relevant institutional ethics review boards in the country sites (South Africa, Cameroun, and Jamaica in 2019, and Kenya in 2020). As of December 23, 2020, we had completed data collection from adolescents (n≥150) in all the country sites, except Kenya, and data collection for the subgroup (n=30-45) is ongoing. Data analysis is ongoing and the output of findings from the study described in this protocol is expected to be published by 2022. CONCLUSIONS: This project protocol contributes to research that focuses on adolescents and the socioecological determinants of food intake and PA in LMIC settings. It includes innovative methodologies to interrogate and map the contexts of these determinants and will generate much-needed data to understand the multilevel system of factors that can be leveraged through upstream and downstream strategies and interventions to improve health outcomes. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/26739.

13.
Artigo em Inglês | MEDLINE | ID: mdl-33802649

RESUMO

South Africa (SA) launched their 24-h movement guidelines for birth to five years in December 2018. The guideline dissemination plan adopted a "train-the-trainer" strategy through dissemination workshops with community-based organisations (CBOs) working in early childhood development. The aim of this paper is to: (1) document this dissemination process; and (2) report on the feasibility of implementing the dissemination workshops, the acceptability of the workshops (and guidelines) for different end-user groups, and the extent to which CBO representatives disseminated the guidelines to end-users. Fifteen workshops were held in seven of SA's nine provinces with a total of 323 attendees. Quantitative and qualitative findings (n = 281) indicate that these workshops were feasible for community-based dissemination of the guidelines and that this method of dissemination was acceptable to CBOs and end-users. Findings from follow-up focus groups (6 groups, n = 28 participants) indicate that the guidelines were shared with end-users of CBOs who participated in the focus groups. An additional musical storytelling resource, the "Woza, Mntwana" song, was well-received by participants; sharing via WhatsApp was believed to be the most effective way to disseminate this song. These findings confirm the feasibility and acceptability of culturally appropriate and context-specific community-based dissemination of behavioural guidelines in low-income settings.


Assuntos
Movimento , Parto , População Negra , Criança , Pré-Escolar , Feminino , Grupos Focais , Humanos , Gravidez , África do Sul
14.
Public Health Nutr ; 24(16): 5187-5206, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-31573465

RESUMO

OBJECTIVE: To: (i) understand facilitators and barriers to healthy eating practices and physical activity in younger and older urban adolescent South African boys and girls; and (ii) understand how the views of caregivers interact with, and influence, adolescent behaviours. DESIGN: Semi-structured focus group discussions (FGD) were conducted in July 2018. Data were analysed using thematic analysis. SETTING: Soweto, Johannesburg, South Africa. PARTICIPANTS: Seventy-five participants were stratified into eight FGD as follows: two for young boys and girls (10-12 years); two for older boys and girls (15-17 years); two for caregivers of young adolescents (boys and girls); and two for caregivers of older adolescents (boys and girls). RESULTS: Unlike their caregivers, adolescents were not motivated to eat healthily and failed to appreciate the need to develop consistent patterns of both healthy eating and physical activity for their long-term health. Although adolescents gained independence with age, they commonly attributed unhealthy food choices to a lack of autonomy and, thereby, to the influence of their caregivers. Adolescents and caregivers perceived their engagement in physical activity according to distinct siloes of recreational and routine activity, respectively. Both similarities and differences in the drivers of healthy eating and physical activity exist in adolescents and caregivers, and should be targeted in future interventions. CONCLUSIONS: Our study identified a complex paradigm of eating practices and physical activity in South African adolescents and their caregivers. We also highlighted the need for a new narrative in addressing the multifaceted and interrelated determinants of adolescent health within urban poor settings.


Assuntos
Cuidadores , Dieta Saudável , Adolescente , Exercício Físico , Comportamento Alimentar , Feminino , Humanos , Masculino , África do Sul
15.
Public Health Nutr ; 24(16): 5249-5260, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-32753088

RESUMO

OBJECTIVE: To describe the anthropometry, socioeconomic circumstances, diet and screen time usage of adolescents in India and Africa as context to a qualitative study of barriers to healthy eating and activity. DESIGN: Cross-sectional survey, including measured height and weight and derived rates of stunting, low BMI, overweight and obesity. Parental schooling and employment status, household assets and amenities, and adolescents' dietary diversity, intake of snack foods, mobile/smartphone ownership and TV/computer time were obtained via a questionnaire. SETTING: Four settings each in Africa (rural villages, West Kiang, The Gambia; low-income urban communities, Abidjan, Cote D'Ivoire; low/middle-class urban communities, Jimma, Ethiopia; low-income township, Johannesburg, South Africa) and India (rural villages, Dervan; semi-rural villages, Pune; city slums, Mumbai; low-middle/middle-class urban communities, Mysore). PARTICIPANTS: Convenience samples (n 41-112 per site) of boys and girls, half aged 10-12 years and another half aged 15-17 years, were recruited for a qualitative study. RESULTS: Both undernutrition (stunting and/or low BMI) and overweight/obesity were present in all settings. Rural settings had the most undernutrition, least overweight/obesity and greatest diet diversity. Urban Johannesburg (27 %) and Abidjan (16 %), and semi-rural Pune (16 %) had the most overweight/obesity. In all settings, adolescents reported low intakes of micronutrient-rich fruits and vegetables, and substantial intakes of salted snacks, cakes/biscuits, sweets and fizzy drinks. Smartphone ownership ranged from 5 % (West Kiang) to 69 % (Johannesburg), higher among older adolescents. CONCLUSIONS: The 'double burden of malnutrition' is present in all TALENT settings. Greater urban transition is associated with less undernutrition, more overweight/obesity, less diet diversity and higher intakes of unhealthy/snack foods.


Assuntos
Dieta , Estado Nutricional , Adolescente , Antropometria , Côte d'Ivoire , Estudos Transversais , Feminino , Humanos , Índia/epidemiologia , Masculino , África do Sul , População Urbana
16.
Public Health Nutr ; 24(10): 2900-2910, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33315006

RESUMO

OBJECTIVE: To provide insight into the context and public health implications of the South African sugar-sweetened beverage (SSB) tax (Health Promotion Levy; HPL) by describing SSB and added sugar intakes, as well as BMI, 1 year prior to, at the time of and 1 year after implementation of the HPL. DESIGN: Longitudinal dietary intake was assessed using a quantitative food frequency questionnaire (QFFQ) and BMI was measured via anthropometry. SETTING: Soweto, Johannesburg, South Africa. PARTICIPANTS: Adolescents, young adults and middle-aged adults (n 617). RESULTS: At baseline, median SSB intakes were 36 ml/d, 214 ml/d and 750 ml/d for those in low, medium and high consumption tertiles, respectively. SSB intake decreased by two times/week in medium consumers and seven times/week in high consumers between baseline and 12 months, equivalent to 107 ml/d and 536 ml/d reductions, respectively. These reduced levels were maintained in the following year (i.e. to 24 months). There was an overall decrease in the amount of energy consumed as added sugar in the low (-48 kJ/d), medium (-153 kJ/d) and high (-106 kJ/d) SSB consumption groups between baseline and 24 months; however, the percentage of total energy consumed as added sugar remained relatively consistent (between 10 and 11 %). There were small overall increases in BMI across low (0·6 kg/m2), medium (0·9 kg/m2) and high (1·0 kg/m2) SSB tertiles between baseline and 24 months. CONCLUSIONS: These findings suggest reductions in SSB and added sugar consumption contemporaneous to the introduction of the HPL - particularly for those with higher baseline intakes.


Assuntos
Bebidas Adoçadas com Açúcar , Adolescente , Antropometria , Bebidas , Índice de Massa Corporal , Humanos , Pessoa de Meia-Idade , África do Sul , Açúcares , Adulto Jovem
17.
Artigo em Inglês | MEDLINE | ID: mdl-32764431

RESUMO

Estimation of the intensity of physical activity (PA) based on absolute accelerometer cut points (Cp) likely over- or underestimates intensity for a specific individual. The purpose of this study was to investigate the relationship between absolute moderate intensity Cp and the first ventilatory threshold (VT1). A group of 24 pregnant and 15 nonpregnant women who performed a submaximal incremental walking test with measures of ventilatory parameters and accelerations from three different accelerometers on the wrist (ActiGraph wGT3X-BT, GENEActiv, Axivity AX3) and one on the hip (Actigraph wGT3X-BT) were analyzed. Cp were determined corresponding to 3 metabolic equivalents of task (MET), using the conventional MET definition (Cp3.5) (3.5 mL/kg×min) and individual resting metabolic rate (Cpind). The ventilatory equivalent (VE/VO2) was used to determine VT1. Accelerations at VT1 were significantly higher (p < 0.01) compared to Cp3.5 and Cpind in both groups. Cp3.5 and Cpind were significantly different in nonpregnant (p < 0.01) but not in pregnant women. Walking speed at VT1 (5.7 ± 0.5/6.2 ± 0.8 km/h) was significantly lower (p < 0.01) in pregnant compared to nonpregnant women and correspondent to 3.8 ± 0.7/4.9 ± 1.4 conventional METs. Intensity at absolute Cp was lower compared to the intensity at VT1 independent of the device or placement in pregnant and nonpregnant women. Therefore, we recommend individually tailored cut points such as the VT1 to better assess the effect of the intensity of PA.


Assuntos
Acelerometria , Exercício Físico , Aceleração , Actigrafia , Adulto , Teste de Esforço , Feminino , Humanos , Gravidez , Dispositivos Eletrônicos Vestíveis , Punho , Adulto Jovem
18.
Public Health Nutr ; 23(2): 374-383, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31179956

RESUMO

OBJECTIVE: A tax on sugar-sweetened beverages (SSB) was introduced in South Africa in April 2018. Our objective was to document perceptions and attitudes among urban South Africans living in Soweto on factors that contribute to their SSB intake and on South Africa's use of a tax to reduce SSB consumption. DESIGN: We conducted six focus group discussions using a semi-structured guide. SETTING: The study was conducted in Soweto, Johannesburg, South Africa, 3 months before South Africa's SSB tax was implemented. PARTICIPANTS: Adults aged 18 years or above living in Soweto (n 57). RESULTS: Participants reported frequent SSB consumption and attributed this to habit, addiction, advertising and wide accessibility of SSB. Most of the participants were not aware of the proposed SSB tax; when made aware of the tax, their responses included both beliefs that it would and would not result in reduced SSB intake. However, participants indicated cynicism with regard to the government's stated motivation in introducing the tax for health rather than revenue reasons. CONCLUSIONS: While an SSB tax is a policy tool that could be used with other strategies to reduce people's high level of SSB consumption in Soweto, our findings suggest a need to complement the SSB tax with a multipronged behaviour change strategy. This strategy could include both environmental and individual levers to reduce SSB consumption and its associated risks.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Obesidade/prevenção & controle , Bebidas Adoçadas com Açúcar/economia , Impostos , Adolescente , Adulto , Comportamento Alimentar , Feminino , Grupos Focais , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Percepção , Pesquisa Qualitativa , África do Sul , Bebidas Adoçadas com Açúcar/estatística & dados numéricos , Adulto Jovem
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