| 11. |
- Cuenca-Garcia, Magdalena, et al.
(author)
-
More Physically Active and Leaner Adolescents Have Higher Energy Intake
- 2014
-
In: The Journal of Pediatrics. - : Elsevier BV. - 0022-3476 .- 1097-6833. ; 164:1, s. 159-166
-
Journal article (peer-reviewed)abstract
- Objective To test whether youths who engage in vigorous physical activity are more likely to have lean bodies while ingesting relatively large amounts of energy. For this purpose, we studied the associations of both physical activity and adiposity with energy intake in adolescents.Study design The study subjects were adolescents who participated in 1 of 2 cross-sectional studies, the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study (n = 1450; mean age, 14.6 years) or the European Youth Heart Study (EYHS; n = 321; mean age, 15.6 years). Physical activity was measured by accelerometry, and energy intake was measured by 24-hour recall. In the HELENA study, body composition was assessed by 2 or more of the following methods: skinfold thickness, bioelectrical impedance analysis, plus dual-energy X-ray absorptiometry or air-displacement plethysmography in a subsample. In the EYHS, body composition was assessed by skinfold thickness.Results Fat mass was inversely associated with energy intake in both studies and using 4 different measurement methods (P <=.006). Overall, fat-free mass was positively associated with energy intake in both studies, yet the results were not consistent across measurement methods in the HELENA study. Vigorous physical activity in the HELENA study (P<.05) and moderate physical activity in the EYHS (P<.01) were positively associated with energy intake. Overall, results remained unchanged after adjustment for potential confounding factors, after mutual adjustment among the main exposures (physical activity and fat mass), and after the elimination of obese subjects, who might tend to under-report energy intake, from the analyses.Conclusion Our data are consistent with the hypothesis that more physically active and leaner adolescents have higher energy intake than less active adolescents with larger amounts of fat mass.
|
|
| 12. |
- DeHenauw, Stefaan, et al.
(author)
-
Nutritional status and lifestyle of adolescents from a public health perspective. The HELENA Project - Healthy Lifestyle in Europe by Nutrition in Adolescence.
- 2007
-
In: Journal of Public Health. ; 15:3, s. 187-197
-
Journal article (peer-reviewed)abstract
- The HELENA Project—Healthy Lifestyle in Europe by Nutrition in Adolescence—is a European, collaborative research project financed by the EU Sixth Framework Programme in the area of nutrition-related adolescent health. The basic objective of the HELENA project is to obtain reliable and comparable data from a random sample of European adolescents (boys and girls aged 13–16 years) on a broad battery of relevant nutrition and health-related parameters: dietary intake, food choices and preferences, anthropometry, serum indicators of lipid metabolism and glucose metabolism, vitamin and mineral status, immunological markers, physical activity, fitness and genetic markers. The HELENA project is conceived as a scientific construction with four complementary sub-studies that are elaborated through 14 well-defined work packages. Sub-studies are focused, respectively, on “a cross-sectional description of lifestyles and indicators of nutritional status (HELENA-CSS)”, “a lifestyle education intervention programme (HELENA-LSEI), “a metabolic study with cross-over design (HELENA-COMS)” and a “study on behaviour, food preferences and food development” (HELENA-BEFO). The project unites 20 research centres from 10 European countries. In addition, the consortium comprises five SMEs (small and medium-sized enterprises) that are actively involved in the research activities. The core of the HELENA project study material is an overall European cohort of 3,000 adolescents, equally recruited in ten cities from nine countries. Standardization of methods among partners is a key issue in the project and is obtained through the development of standard protocols, training sessions, validation sub-studies and pilot projects. Health-related problems have a tendency to evolve in cycles, with ever new problems emerging in ever new contexts that call for appropriate and tailored actions. The HELENA project is expected to offer essential elements for use in the overall machinery of required public health nutrition cycles. It is of the greatest importance for its results to prove useful that it can communicate with other initiatives on the level of science and society.
|
|
| 13. |
- Duffey, Kiyah, et al.
(author)
-
Beverage consumption among European adolescents in the HELENA study
- 2012
-
In: European Journal of Clinical Nutrition. - : Springer Science and Business Media LLC. - 0954-3007 .- 1476-5640. ; 66:2, s. 244-252
-
Journal article (peer-reviewed)abstract
- Background/Objectives: Our objective was to describe the fluid and energy consumption of beverages in a large sample of European adolescents.Subjects/Methods: We used data from 2741 European adolescents residing in 8 countries participating in the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study (HELENA-CSS). We averaged two 24-h recalls, collected using the HELENA-dietary assessment tool. By gender and age subgroup (12.5–14.9 years and 15–17.5 years), we examined per capita and per consumer fluid (milliliters (ml)) and energy (kilojoules (kJ)) intake from beverages and percentage consuming 10 different beverage groups.Results: Mean beverage consumption was 1611 ml/day in boys and 1316 ml/day in girls. Energy intake from beverages was about 1966 kJ/day and 1289 kJ/day in European boys and girls, respectively, with sugar-sweetened beverages (SSBs) (carbonated and non-carbonated beverages, including soft drinks, fruit drinks and powders/concentrates) contributing to daily energy intake more than other groups of beverages. Boys and older adolescents consumed the most amount of per capita total energy from beverages. Among all age and gender subgroups, SSBs, sweetened milk (including chocolate milk and flavored yogurt drinks all with added sugar), low-fat milk and fruit juice provided the highest amount of per capita energy. Water was consumed by the largest percentage of adolescents followed by SSBs, fruit juice and sweetened milk. Among consumers, water provided the greatest fluid intake and sweetened milk accounted for the largest amount of energy intake followed by SSBs. Patterns of energy intake from each beverage varied between countries.Conclusions: European adolescents consume an average of 1455 ml/day of beverages, with the largest proportion of consumers and the largest fluid amount coming from water. Beverages provide 1609 kJ/day, of which 30.4%, 20.7% and 18.1% comes from SSBs, sweetened milk and fruit juice, respectively.
|
|
| 14. |
- Fall, Tove, et al.
(author)
-
Age- and sex-specific causal effects of adiposity on cardiovascular risk factors
- 2015
-
In: Diabetes. - : American Diabetes Association. - 0012-1797 .- 1939-327X. ; 64:5, s. 1841-1852
-
Journal article (peer-reviewed)abstract
- Observational studies have reported different effects of adiposity on cardiovascular risk factors across age and sex. Since cardiovascular risk factors are enriched in obese individuals, it has not been easy to dissect the effects of adiposity from those of other risk factors. We used a Mendelian randomization approach, applying a set of 32 genetic markers to estimate the causal effect of adiposity on blood pressure, glycemic indices, circulating lipid levels, and markers of inflammation and liver disease in up to 67,553 individuals. All analyses were stratified by age (cutoff 55 years of age) and sex. The genetic score was associated with BMI in both nonstratified analysis (P = 2.8 × 10(-107)) and stratified analyses (all P < 3.3 × 10(-30)). We found evidence of a causal effect of adiposity on blood pressure, fasting levels of insulin, C-reactive protein, interleukin-6, HDL cholesterol, and triglycerides in a nonstratified analysis and in the <55-year stratum. Further, we found evidence of a smaller causal effect on total cholesterol (P for difference = 0.015) in the ≥55-year stratum than in the <55-year stratum, a finding that could be explained by biology, survival bias, or differential medication. In conclusion, this study extends previous knowledge of the effects of adiposity by providing sex- and age-specific causal estimates on cardiovascular risk factors.
|
|
| 15. |
- Giménez-Legarre, Natalia, et al.
(author)
-
Breakfast consumption and its relationship with diet quality and adherence to Mediterranean diet in European adolescents : the HELENA study
- 2022
-
In: European Journal of Clinical Nutrition. - : Springer Nature. - 0954-3007 .- 1476-5640. ; 76:12, s. 1690-1696
-
Journal article (peer-reviewed)abstract
- Objective: The aim of the current study is to analyze the associations between breakfast consumption and adherence to diet quality index (DQI) and Mediterranean Diet Score (MDS) in European adolescents.Methods: A multinational cross-sectional study was carried out in 1804 adolescents aged 12.5–17.5 years. The Food Choices and Preferences questionnaire was used to ascertain breakfast consumption (consumers, occasional consumers and skippers), and two non-consecutive 24 h dietary recalls were used to estimate the total daily intake and to calculate the subsequent DQI and MDS. Mixed linear regression models were used to examine the relationship between breakfast consumption and DQI-A and MDS. Age, maternal education, BMI, country and total energy intake were included as covariates.Results: In both sexes, significant differences were observed among the breakfast consumption categories. In both boys and girls, breakfast consumers had significantly higher DQI indices than those adolescents who skipped breakfast regularly (p < 0.001). Regarding total MDS, in both boys and girls, breakfast consumers had a higher total MDS than breakfast skippers (p < 0.001), however, no associations were shown between occasional breakfast consumers and DQI indices and MDS.Conclusion: Breakfast consumption has been linked with better dietary quality scores compared with those children who usually skip breakfast. Promotion of regular breakfast consumption in adolescents could be an effective strategy to improve the overall diet quality.
|
|
| 16. |
- Hallström, Lena, 1958-, et al.
(author)
-
Breakfast habits and factors influencing food choices at breakfast in relation to socio-demographic and family factors among European adolescents : The HELENA Study
- 2011
-
In: Appetite. - : Elsevier BV. - 0195-6663 .- 1095-8304. ; 56:3, s. 649-657
-
Journal article (peer-reviewed)abstract
- The aim was to investigate factors associated with breakfast habits and influences on food choices at breakfast, within the framework of the EU-funded HELENA Study in 3528 adolescents from ten cities across Europe. The statement “I often skip breakfast” and personal and socio-environmental factors hypothesized to be related to food choice at breakfast were dichotomized. Logistic regression was used to investigate the association between behavioral (skipping versus consume breakfast) and individual, personal and socio-environmental factors. Half of the adolescents (fewer girls) indicated being regular breakfast consumers. Mothers’ education and family structure were associated with breakfast consumption. Adolescents with peers who gave little or no encouragement, and boys whose parents gave encouragement, were more likely to be regular breakfast consumers. Personal factors influenced the girls more than the boys in their choice of food for breakfast and socio-environmental factors influenced younger adolescents more than older adolescents. In conclusion, a broad range of (behavioral, individual, personal and socio-environmental) factors influence breakfast habits and food choices at breakfast among European adolescents. Breakfast habits were inappreciably influenced by socio-demographical factors. These factors need to be considered in discussions surrounding the development of nutritional intervention programs intended for adolescents.
|
|
| 17. |
|
|
| 18. |
|
|
| 19. |
- Iglesia, Iris, et al.
(author)
-
Foods contributing to vitamin B-6, folate, and vitamin B-12 intakes and biomarkers status in European adolescents : The HELENA study
- 2017
-
In: European Journal of Nutrition. - : SPRINGER HEIDELBERG. - 1436-6207 .- 1436-6215. ; 56:4, s. 1767-1782
-
Journal article (peer-reviewed)abstract
- To examine the association between food groups consumption and vitamin B-6, folate and B-12 intakes and biomarkers in adolescents. In total 2189 individuals participating in the cross-sectional Healthy Lifestyle in Europe by Nutrition in Adolescence study met the eligibility criteria for analysis of dietary intakes (46 % males) and 632 for biomarker analysis (47 % males). Food intakes were assessed by two non-consecutive 24-h recalls. Biomarkers were measured by chromatography and immunoassay. Food groups which best discriminated participants in the extreme tertiles of the distribution of vitamins were identified by discriminant analyses. Food groups with standardised canonical coefficients higher or equal to 0.3 were selected as valid discriminators of vitamins intake and biomarkers extreme tertiles. Linear mixed model elucidated the association between food groups and vitamins intakes and biomarkers. Vitamin B-6 intakes and biomarkers were best discriminated by meat (males and females), margarine and mixed origin lipids only in males and breakfast cereals (females). Breakfast cereals (males), and fruits, margarine and mixed origin lipids, vegetables excluding potatoes, breakfast cereals, and soups/bouillon (females) determined the most folate intakes and biomarkers. Considering vitamin B-12 intakes and biomarkers, meat, and white and butter milk (males and females), snacks (males), and dairy products (females) best discriminated individual in the extremes of the distribution. Fewer associations were obtained with mixed model for biomarkers than for vitamins intakes with food groups. Whereas B-vitamin intakes were associated with their food sources, biomarkers did with overall food consumption. Low-nutrient-density foods may compromise adolescents' vitamin status.
|
|
| 20. |
- Julian, Cristina, et al.
(author)
-
Dietary sources and sociodemographic and lifestyle factors affecting vitamin D and calcium intakes in European adolescents : the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) Study
- 2017
-
In: Public Health Nutrition. - : Cambridge University Press. - 1368-9800 .- 1475-2727. ; 20:9, s. 1593-1601
-
Journal article (peer-reviewed)abstract
- Objective; To investigate dietary sources of Ca and vitamin D (VitD) intakes, and the associated sociodemographic and Lifestyle Factors, among European adolescents. Design: Linear regression mixed models were used to examine sex-specific associations of Ca and Via) intakes with parental education, family affluence (FAS), physical activity and television (TV) watching while controlling for age, Tanner stage, energy intake and diet quality. Setting: The Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) Cross-Sectional Study. Subjects: Adolescents aged 12.5-17.5 years In 1804). Results: Milk and cheese were the main sources of Ca (23 and 19% contribution to overall Ca intake, respectively). Fish products were the main VitD source (30 % contribution to overall VitD intake). Ca intake was positively associated with maternal education (beta) =56.41; 95% Cl 1.98, 110.82) and negatively associated with TV viewing in boys (beta=-0.43; 95% CI -0.79, -0.07); however, the significance of these associations disappeared when adjusting for diet quality. In girls, Ca intake was positively associated with mother's (beta=73.08; 95% CI 34.41, 111.74) and father's education (beta =43.29; 95% CI 5.44, 81.14) and FAS (beta=37.45; 95% Cl 2.25, 72.65). This association between Ca intake and mother's education remained significant after further adjustment for diet quality (beta=41.66; 95 % CI 0.94, 82.38). Girls with high-educated mothers had higher Ca intake. Conclusions: Low-educated families with poor diet quality may be targeted when strategizing health promotion programmes to enhance dietary Ca.
|
|
