Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 14 de 14
Filtrar
1.
Matern Child Nutr ; 20(1): e13552, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37596722

RESUMO

Diet during the child's first years is important for growth and development. In toddlerhood, higher diet quality is reported among children eating meals together with family. Although previous literature has documented several associations between maternal mental health and early child feeding practices, less is known about the relationship between maternal mental health and child frequency of shared family meals. This study explores associations between maternal symptoms of anxiety and depression, measured by The Hopkins Symptoms Checklist (SCL-8), and toddler participation in family meals. We used cross-sectional data from the Norwegian study Early Food for Future Health, in which participants responded to questionnaires at child age 12 (n = 455) and 24 months (n = 295). Logistic regression was used to explore associations between maternal mental health and child having regular (≥5 per week) or irregular (<5 per week) family meals (breakfast and dinner), adjusting for relevant child and maternal confounding variables. Children of mothers with higher scores of anxiety and depression had higher odds of Irregular family meals at both timepoints; (OR: 2.067, p = 0.015) and (OR: 2.444, p = 0.023). This is one of few studies exploring associations between maternal mental health and child frequency of shared family meals in early childhood, a period where the foundation for life-long health is shaped. Given the high prevalence of mental ailments and disorders, these findings are important and may inform future public health interventions. Further exploration of this relation is needed, including longitudinal research to test predictive associations and qualitative studies to increase insight and understanding.


Assuntos
Refeições , Saúde Mental , Feminino , Humanos , Pré-Escolar , Criança , Estudos Transversais , Dieta , Mães , Comportamento Alimentar/psicologia , Inquéritos e Questionários
2.
Matern Child Nutr ; 20 Suppl 2: e13546, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37439563

RESUMO

In Norway, public health nurses (PHNs) are responsible for giving parents nutritional knowledge, but limited research describes how they perceive this task. This study explores PHNs' perceptions and experiences on nutritional guidance for parents of infants and toddlers. Semistructured interviews with six PHNs were conducted and transcribed verbatim. Data were subjected to thematic analysis. Five main themes were identified: (1) Dietary guidance for parents is central to the work; (2) PHNs perceive they have parents' trust, and parents are in general open to nutrition counselling; (3) food and meals must be seen in light of the family context; (4) The dialogue must be adapted to the individual family; and (5) PHNs have expertise on nutrition; however, updating knowledge is difficult. Nutritional guidance was perceived by PHNs as a core activity. They felt that they had parents' trust, and that parents were particularly open to nutritional guidance during the first 2 years. Counselling was generally well received, but conversations on overweight were perceived as difficult. PHNs strove to tailor their guidance to individual needs. However, providing guidance on a wide range of issues in different families and cultures could be challenging. They acknowledged a need for updating knowledge but the offer of courses was sparse. Our findings suggest a discrepancy between how nutrition is prioritized in the education of PHNs and what they encounter in clinical practice. In the future, this should be given more attention given the PHNs' unique position to promote healthy eating and long-term health.


Assuntos
Enfermeiras de Saúde Pública , Lactente , Humanos , Pré-Escolar , Pesquisa Qualitativa , Educação em Saúde , Aconselhamento , Pais
3.
Nutrients ; 15(1)2023 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-36615900

RESUMO

There is rising concern about population mental health. Personality and mental health traits manifest early. Sufficient nutrition is fundamental to early development. However, little is known about early life dietary impact on later mental health. The aim of this study was to investigate associations of exposure to a healthy and sustainable antenatal and early childhood diet with personality traits and symptoms of depression and anxiety measured at 8 years of age. This study is based on the Norwegian Mother, Father and Child Cohort Study (MoBa) and uses data from the Medical Birth Registry of Norway (MBRN) including 40,566 participants. Mental health measures and personality traits were assessed at 8 years. Dietary data from pregnancy, child age 6 and 18 months and 3 and 7 years were used. With few exceptions, inverse associations were observed between healthier diet at all time points and depression and anxiety symptom scores at age 8. We found positive associations between diet scores at almost all time points and extraversion, benevolence, conscientiousness and imagination. Inverse associations were observed between diet scores and neuroticism. Combined, these findings underpin a probable impact of both maternal pregnancy diet and early childhood diet on several aspects of child mental health.


Assuntos
Saúde Mental , Mães , Humanos , Criança , Feminino , Pré-Escolar , Gravidez , Lactente , Masculino , Estudos de Coortes , Mães/psicologia , Dieta , Personalidade , Pai , Noruega/epidemiologia
4.
Front Public Health ; 11: 1326787, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38264256

RESUMO

Background: Few effective health interventions transition from smaller efficacy or effectiveness studies to real-world implementation at scale, representing a gap between evidence and practice. Recognising this, we have developed Nutrition Now - a tailored digital resource building on four efficacious dietary interventions, aiming to improve nutrition in the important first 1,000 days of life. Nutrition Now targets and guides expectant parents and parents of 0-2 year olds, serves as a reliable source of evidence-based information for midwives and public health nurses at maternal and child healthcare (MCH) centres, and offers pedagogical tools for early childhood education and care (ECEC) staff. The aim of this study is to implement Nutrition Now at scale and evaluate the impact of different sets of multifaceted implementation strategies on implementation outcomes. Methods: A quasi-experimental design with three study arms will be used, providing either low, medium or high implementation support, when rolled out in 50 municipalities in 2 counties in Norway. Nutrition Now will be implemented in MCH and ECEC settings and made available to expectant parents and parents of 0-2 year olds through social media and MCH. The implementation support builds on strategies described in the Expert Recommendations for Implementing Change (ERIC) implementation framework and is informed by dialogues with stakeholders. Impact of the different degree of implementation support will be assessed by examining reach, adoption, fidelity, and sustainability using usage data generated from the Nutrition Now resource, publicly available municipal data and qualitative interviews with MCH and ECEC staff. Discussion: Nutrition Now Phase 2 will break new ground by scaling up successively delivered and complementary dietary interventions in the first 1,000 days of life in a real-life context. The project also seeks to identify what level of implementation support is most effective when implementing digital, scalable, evidence-based early-life nutrition interventions in community settings. The project will inform implementation research and provide knowledge about effective implementation strategies to be used in a national scale-up of Nutrition Now. Trial registration: The study is registered prospectively (submitted 14/06/2022, registration date: 19/06/2022) in the International Standard Randomised Controlled Trial Number registry (ISRCTN): reg. Number: ISRCTN10694967, https://doi.org/10.1186/ISRCTN10694967.


Assuntos
Estado Nutricional , Projetos de Pesquisa , Pré-Escolar , Humanos , Lactente , Recém-Nascido , Ensaios Clínicos Fase II como Assunto , Noruega , Pais , Sistema de Registros , Ensaios Clínicos Controlados Aleatórios como Assunto
5.
PLoS One ; 17(1): e0261222, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34995296

RESUMO

Facilitating positive feeding practices from infancy may be an important strategy to prevent childhood overweight and obesity. Since the feeding situation early in life constitutes a bidirectional relationship, it is important to understand the impact of both maternal and infant characteristics on maternal feeding practices to intervene in a customized and tailored way. Few studies have concurrently examined associations between maternal and infant characteristics in relation to early maternal feeding practices. The aim of the present study was to explore potential associations between infant and maternal characteristics measured at child age five months, and maternal feeding styles and practices during the child's first two years. Cross-sectional data from a Norwegian randomized controlled trial in which participants responded to questionnaires at child age 5 months (n = 474), 12 months (n = 293) and 24 months (n = 185) were used to explore potential associations. All maternal and child predictor variables were collected at child age five months. Maternal feeding styles and practices were mapped using subscales from the Infant Feeding Questionnaire at child age 5 and 12 months and the Child Feeding Questionnaire and the Parental Feeding Style Questionnaire at child age 24 months. The subscale-scores were split into roughly equal tertiles, and the upper or lower tertile for the outcome of interest were used to create binary outcome variables. Multivariable binary logistic regression models were conducted for each outcome. We found that maternal education and mental health symptoms as well as infant weight, temperament and feeding mode were associated with maternal feeding styles and practices over time. Our findings indicate that risk factors which may have long-term implications for child weight and health outcomes can be identified early. Larger, population-based studies with a longitudinal design are needed to further explore these pathways.


Assuntos
Comportamento Alimentar/psicologia , Comportamento Materno/psicologia , Poder Familiar/psicologia , Adulto , Peso Corporal , Comportamento Infantil , Pré-Escolar , Estudos Transversais , Comportamento Alimentar/fisiologia , Feminino , Humanos , Lactente , Masculino , Mães/psicologia , Noruega , Obesidade Pediátrica/prevenção & controle , Inquéritos e Questionários
6.
Front Endocrinol (Lausanne) ; 13: 1071489, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36704042

RESUMO

Disappointingly few efficacious health interventions are successfully scaled up and implemented in real world settings. This represents an evidence-to-practice gap, with loss of opportunity to improve practice. Aiming to improve nutrition in the first 1000 days of life, we have combined four efficacious dietary interventions into a single adapted digital resource (Nutrition Now) for implementation in a Norwegian community setting. Nutrition Now targets pregnant women and parents of 0-2-year-olds with messages focusing on healthy dietary behaviours. Early childhood education and care (ECEC) staff are provided with pedagogical tools addressing healthy food exposure and child food acceptance. Objectives: a) evaluate the effectiveness of provision of the Nutrition Now resource on child diet and diet-related outcomes, with special attention to the influence of socio-economic position, b) gather information on the effectiveness of the implementation process to inform forthcoming scale-up and c) perform trial- and model-based economic evaluations. This is a hybrid type 1 implementation study, focusing on evaluation of effectiveness. A quasi-experimental design with pre- and post-tests, where one municipality gets access to the resource (n~800), while a matched non-equivalent control municipality (n~800) does not, will be used. Effectiveness will be assessed by examining e.g., diet outcomes, developmental outcomes, and feeding practices. The resource will be implemented in ECEC settings and made available to pregnant women and parents through the Norwegian system of maternal and child health (MCH) care. The implementation process includes iterative adjustments and implementation strategies from the implementation framework Expert Recommendations for Implementing Change (ERIC) informed by dialogues with stakeholders. Implementation outcomes (e.g., acceptability and adoption) will be assessed through questionnaires and interviews with parents, ECEC and MCH staff, with particular attention to ethnic diverse groups. Both within-trial and modelling-based economic evaluation will be performed. Nutrition Now will bridge the existing evidence-to-practice gap through rigorous scientific effectiveness evaluation of municipal scale up and inform subsequent county scale up. The study is the first to implement efficacious nutrition interventions in early life with potential for health improvement using technology to maximise the reach and impact of both parental and MCH dietary guidance and ECEC practice. Clinical Trial Registration: https://www.isrctn.com/, identified ISRCTN10694967.


Assuntos
Dieta , Comportamento Alimentar , Pré-Escolar , Feminino , Humanos , Gravidez , Estado Nutricional , Pais , Projetos de Pesquisa , Ensaios Clínicos Controlados não Aleatórios como Assunto , Recém-Nascido , Lactente
7.
PLoS One ; 14(8): e0220437, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31442241

RESUMO

OBJECTIVES: The Norwegian randomized controlled trial Early Food for Future Health provided parental anticipatory guidance on early protective feeding practices from child age 6 to 12 months through an eHealth intervention. Previously published outcomes at child age 12 months indicated that the eHealth intervention increased daily vegetable/fruit intake and promoted more beneficial mealtime routines. The objective of the current paper is to evaluate the effects of the intervention at child age 24 months, one year after cessation. METHODS: Parents of infants aged 3-5 months were recruited via social media and child health clinics during spring 2016. At child age 5.5 months, 715 mothers were randomized to either control (n = 358) or intervention (n = 360) arm. Primary study-outcomes were child eating behaviors, dietary intake, mealtime routines and maternal feeding practices and feeding styles. Secondary outcome was child anthropometry. RESULTS: In total 295 mothers (41%) completed the follow-up questionnaire at child age 24 months. Regarding fruit intake, 54.3% in the intervention group had a high score compared with 48.3% of the control group (p = 0.29). For intake of vegetables, 54.5% in the intervention group had a high score compared with 50.7% in the control group (p = 0.49). A total of 65.7% of the children in the intervention group were eating breakfast together with family ≥ 4 times per week, compared with 57.3% of the children in the control group (p = 0.12). There was no difference between the groups for child anthropometric outcomes at child age 24 months. CONCLUSIONS: At child age 24 months, we found no evidence of sustained intervention-effects. Although dietary patterns and mealtime routines at child age 24 months were reasonably consistent and in the same directions as at child age 12 months, the between-group differences were not significant. The large loss to follow-up may have limited power and validity and makes it difficult to draw overall conclusions. Future research is needed to improve knowledge of how short-time effects could be retained over longer term, taking into account that larger samples are necessary when planning longer-term follow-up studies. TRIAL REGISTRATION: ISRCTN, ISRCTN13601567.


Assuntos
Comportamento Infantil/psicologia , Ingestão de Alimentos/psicologia , Comportamento Alimentar/psicologia , Fenômenos Fisiológicos da Nutrição do Lactente/fisiologia , Telemedicina , Pré-Escolar , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Lactente , Masculino , Refeições , Mães , Noruega
8.
Tidsskr Nor Laegeforen ; 139(4)2019 02 26.
Artigo em Inglês, Norueguês | MEDLINE | ID: mdl-30808106

RESUMO

BACKGROUND: International studies have shown that 12-58 % of all dietary supplements intended for people who exercise and engage in sports contain substances prohibited by the World Anti-Doping Code (WADC). In some cases, the doping substances are not declared on the product label, and the consumer may therefore be unaware of what he/she ingests. Many of the substances may cause adverse health effects, and sale of such products is illegal in Norway. MATERIAL AND METHOD: To investigate the prevalence of doping substances in dietary supplements sold on the Norwegian market, a total of 93 high-risk products from online shops targeting Norwegian consumers were analysed for substances on the WADC Prohibited List and pharmaceutical drugs. All supplements were marketed as able to boost energy levels and/or having a muscle-building or fat-burning effect. The products were selected on the basis of tips received, online forums and/or international lists. RESULTS: Altogether 21 of 93 (23 %) products analysed contained prohibited substances, pharmaceutical drugs and/or illegal amounts of caffeine. Substances on the WADC Prohibited List were detected in 8 of the 93 (9 %) dietary supplements. All products containing doping substances were declared as containing one or more banned substances. INTERPRETATION: The results show that using apparently legal dietary supplements purchased in online shops targeting Norwegian consumers involves a risk of inadvertent doping and adverse health effects.


Assuntos
Suplementos Nutricionais/análise , Substâncias para Melhoria do Desempenho/química , Anabolizantes/química , Fármacos Antiobesidade/química , Cafeína/química , Doping nos Esportes , Humanos , Internet , Noruega , Preparações Farmacêuticas/química
9.
Int J Behav Nutr Phys Act ; 16(1): 1, 2019 01 03.
Artigo em Inglês | MEDLINE | ID: mdl-30606197

RESUMO

BACKGROUND: Strategies to optimize early-life nutrition provide an important opportunity for primary prevention of childhood obesity. Interventions that can be efficiently scaled-up to the magnitude needed for sustainable childhood obesity prevention are needed. The objective of this study was to evaluate the effects of an eHealth intervention on parental feeding practices and infant eating behaviors. METHODS: The Norwegian study Early Food for Future Health is a randomized controlled trial. Parents were recruited via social media and child health clinics during spring 2016 when their child was aged 3 to 5 months. In total 718 parents completed a web-based baseline questionnaire at child age 5.5 months. The intervention group had access to a webpage with monthly short video clips addressing specific infant feeding topics and age-appropriate baby food recipes from child age 6 to 12 months. The control group received routine care. The primary outcomes were child eating behaviors, dietary intake, mealtime routines and maternal feeding practices and feeding styles. The secondary outcomes were child anthropometry. This paper reports outcomes at child age 12 months. RESULTS: More than 80% of the intervention group reported viewing all/most of the video clips addressing infant feeding topics and indicated that the films were well adapted to the child's age and easy to understand. Children in the intervention group were served vegetables/fruits more frequently (p = 0.035) and had tasted a wider variety of vegetables (p = 0.015) compared to controls. They were also more likely to eat family breakfast (p = 0.035) and dinner (p = 0.011) and less likely to be playing or watching TV/tablet during meals (p = 0.009) compared to control-group children. We found no group differences for child anthropometry or maternal feeding practices. CONCLUSIONS: Our findings suggest that the eHealth intervention is an appropriate and feasible tool to propagate information on healthy infant feeding to Norwegian mothers. Our study also suggests that anticipatory guidance on early protective feeding practices by such a tool may increase young children's daily vegetable/fruit intake and promote beneficial mealtime routines. TRIAL REGISTRATION: ISRCTN, ISRCTN13601567. Registered 29 February 2016, http://www.isrctn.com/ISRCTN13601567.


Assuntos
Dieta , Comportamento Alimentar , Promoção da Saúde/métodos , Telemedicina , Adulto , Antropometria , Livros de Culinária como Assunto , Aconselhamento , Ingestão de Alimentos , Feminino , Frutas , Humanos , Lactente , Comportamento do Lactente , Masculino , Refeições , Mães , Noruega , Pais , Obesidade Pediátrica/prevenção & controle , Inquéritos e Questionários , Verduras
10.
PLoS One ; 13(6): e0199455, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29949644

RESUMO

Norwegian Health authorities recommend solid food to be introduced between child age 4-6 months, depending on both the mother´s and infant's needs. The aim of this paper is to describe timing of complementary feeding in a current sample of Norwegian mother/infant-dyads and explore potential associations between timing of introduction to solid foods and a wide range of maternal and infant characteristics known from previous literature to influence early feeding interactions. The paper is based on data from the Norwegian randomized controlled trial Early Food for Future Health. In 2016, a total of 715 mothers completed a web-based questionnaire at child age 5.5 months. We found that 5% of the infants were introduced to solid food before 4 months of age, while 14% were not introduced to solid food at 5.5 months of age. Introduction of solid food before 4 months of age was associated with the infant not being exclusive breastfed the first month, receiving only formula milk at 3 months, the mother being younger, not married/cohabitant, smoking, less educated and having more economic difficulties. Not being introduced to solid food at 5.5 months was associated with the infant being a girl, being exclusive breastfed the first month, receiving only breastmilk at 3 months, the mother being older, married and having 3 or more children. This study shows that there are still clear socioeconomic differences regarding timing of complementary feeding in Norway. Infants of younger, less educated and smoking mothers are at higher risk of not being fed in compliance with the official infant feeding recommendations. Our findings emphasize the importance of targeting socioeconomically disadvantaged mothers for support on healthy feeding practices focusing on the infant`s needs to prevent early onset of social inequalities in health.


Assuntos
Alimentos Infantis , Fenômenos Fisiológicos da Nutrição do Lactente , Inquéritos Nutricionais , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Lactente , Noruega , Fatores de Tempo , Adulto Jovem
11.
Public Health Nutr ; 21(8): 1465-1473, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29357963

RESUMO

OBJECTIVE: To explore whether there is an association between socio-economic status and maternal BMI and duration of any breast-feeding/exclusive breast-feeding among Norwegian infants at 4 and 5 months of age in 2016. DESIGN: Cross-sectional design. Baseline data from a randomized controlled trial. Data concerning breast-feeding were collected by FFQ. SETTING: Recruitment was done at child health-care centres and through Facebook in 2016. In total, 960 infants/parents registered for participating in the study Early Food for Future Health. SUBJECTS: A total of 715 infant/mother dyads completed the questionnaire when the child was between 5 and 6 months old. RESULTS: At 5 months of age, 81·0 % of infants were breast-fed and 16·4 % were exclusively breast-fed. Infants of highly educated mothers had higher odds of being breast-fed at 5 months compared with infants of mothers with less education. Infants of multiparous mothers had higher odds of being exclusively breast-fed for the first 5 months compared with infants of mothers with one child. Infants of mothers with overweight/obesity had reduced odds of both being breast-fed at all and being exclusively breast-fed at 4 months of age compared with infants of mothers with normal BMI. CONCLUSIONS: Our results show that duration of breast-feeding varies with socio-economic status and maternal BMI in Norway. Targeting groups with low socio-economic status and mothers with overweight or obesity is important, as they are less likely to breast-feed according to recommendations.


Assuntos
Índice de Massa Corporal , Aleitamento Materno/estatística & dados numéricos , Mães/estatística & dados numéricos , Adulto , Estudos Transversais , Feminino , Humanos , Lactente , Masculino , Noruega/epidemiologia , Fatores Socioeconômicos , Adulto Jovem
12.
BMC Public Health ; 17(1): 729, 2017 09 20.
Artigo em Inglês | MEDLINE | ID: mdl-28931384

RESUMO

BACKGROUND: Childhood overweight and obesity is a global public health challenge. Primary prevention initiatives targeting parents have been called for to encourage a positive feeding environment and healthy eating habits that may lay a good foundation for future health. At the same time, there is a need for interventions which combine accessibility and scalability with cost effectiveness. Today's parents are extensive Internet-users, but only a few randomized controlled trials have investigated the use of Internet to promote healthy eating habits in early childhood. In Early Food for Future Health we have developed and will evaluate an Internet-based tool for parents of children between 6 and 12 months, aiming to increase knowledge about infant nutrition and foster protective feeding behavior. METHODS: During springtime 2016, parents of children aged between 3 and 5 months were recruited through Norwegian child health centres and announcements on Facebook. After completing the baseline questionnaire, 718 parents were individually randomized to intervention- or control group. The intervention group received monthly emails with links to an age-appropriate web-site when their child was between 6 and 12 months. The control group received ordinary care from the child health centres. The data-collection is ongoing. All participants will be followed up at ages 12 and possibly 24 and 48 months, with questionnaires relating to eating behaviour and feeding practices, food variety and diet quality. DISCUSSION: Providing guidance and counseling to parents of infants is an important task for health authorities and the public child health services. Early Food for Future health is an intervention focusing on promoting early healthy food-habits which may prevent childhood overweight and obesity. If proven to be effective, Early Food for Future Health can be used by parents and public health nurses for supplementary guidance on feeding practices and diet. This study has the potential to provide greater insight and understanding regarding early parental feeding practices, child eating behavior and the development and efficacy of Internet-based public health interventions. TRIAL REGISTRATION: ISRCTN13601567 .


Assuntos
Dieta Saudável/psicologia , Comportamento Alimentar , Promoção da Saúde/métodos , Obesidade Pediátrica/prevenção & controle , Telemedicina , Pré-Escolar , Feminino , Seguimentos , Humanos , Lactente , Masculino , Noruega , Avaliação de Programas e Projetos de Saúde , Inquéritos e Questionários
13.
Appl Environ Microbiol ; 81(5): 1668-78, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25527557

RESUMO

Postweaning diarrhea (PWD) in pigs is a leading cause of economic loss in pork production worldwide. The current practice of using antibiotics and zinc to treat PWD is unsustainable due to the potential of antibiotic resistance and ecological disturbance, and novel methods are required. In this study, an in vitro model was used to test the possibility of producing prebiotic fiber in situ in the gastrointestinal (GI) tract of the piglet and the prebiotic activity of the resulting fiber in the terminal ileum. Soluble fiber was successfully produced from potato pulp, an industrial waste product, with the minimal enzyme dose in a simulated upper GI tract model extracting 26.9% of the initial dry matter. The fiber was rich in galactose and galacturonic acid and was fermented at 2.5, 5, or 10 g/liter in a glucose-free medium inoculated with the gut contents of piglet terminal ileum. Fermentations of 5 g/liter inulin or 5 g/liter of a purified potato fiber were used as controls. The fibers showed high fermentability, evident by a dose-dependent drop in pH and an increase in the organic acid content, with lactate in particular being increased. Deep sequencing showed a significant increase in the numbers of Lactobacillus and Veillonella organisms and an insignificant increase in the numbers of Clostridium organisms as well as a decrease in the numbers of Streptococcus organisms. Multivariate analysis showed clustering of the treatment groups, with the group treated with purified potato fiber being clearly separated from the other groups, as the microbiota composition was 60% Lactobacillus and almost free of Clostridium. For animal studies, a dosage corresponding to the 5-g/liter treatment is suggested.


Assuntos
Aditivos Alimentares/metabolismo , Pectinas/metabolismo , Prebióticos , Animais , Bactérias/classificação , Bactérias/crescimento & desenvolvimento , Fermentação , Trato Gastrointestinal/metabolismo , Concentração de Íons de Hidrogênio , Modelos Teóricos , Solanum tuberosum/química , Suínos , Desmame
14.
J Sports Sci ; 29 Suppl 1: S127-36, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22150424

RESUMO

Winter sports are played in cold conditions on ice or snow and often at moderate to high altitude. The most important nutritional challenges for winter sport athletes exposed to environmental extremes include increased energy expenditure, accelerated muscle and liver glycogen utilization, exacerbated fluid loss, and increased iron turnover. Winter sports, however, vary greatly regarding their nutritional requirements due to variable physiological and physique characteristics, energy and substrate demands, and environmental training and competition conditions. What most winter sport athletes have in common is a relatively lean physique and high-intensity training periods, thus they require greater energy and nutrient intakes, along with adequate food and fluid before, during, and after training. Event fuelling is most challenging for cross-country skiers competing in long events, ski jumpers aiming to reduce their body weight, and those winter sport athletes incurring repeated qualification rounds and heats. These athletes need to ensure carbohydrate availability throughout competition. Finally, winter sport athletes may benefit from dietary and sport supplements; however, attention should be paid to safety and efficacy if supplementation is considered.


Assuntos
Temperatura Baixa , Carboidratos da Dieta/administração & dosagem , Ingestão de Energia , Exercício Físico/fisiologia , Necessidades Nutricionais , Patinação/fisiologia , Esportes na Neve/fisiologia , Esportes/fisiologia , Desempenho Atlético/fisiologia , Dieta , Suplementos Nutricionais , Metabolismo Energético , Humanos , Educação Física e Treinamento , Estações do Ano , Esqui/fisiologia , Estresse Fisiológico
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...