Search results for "nutrition"
showing 10 items of 6788 documents
Physical activity, nutrition, and bone health
2018
This review aims to describe the roles that physical activity and nutrition have in bone metabolism and to examine their effects on bone in a situation of altered metabolism as a consequence of inadequate nutrition and/or excessive physical activity. Referring to the recent studies and the main guidelines in the literature on athlete nutrition, the paper also focuses on essential nutrients for bone health during performance. Finally, it discusses the negative effect of some nutrients on bone mineral density.
INFLUENCE OF NUTRITION AND GENETICS ON PERFORMANCE: A PILOT STUDY IN A GROUP OF GYMNASTS
2017
Purpose. Energy requirements in sports performance are affected by numerous factors: physical characteristics, age, genetic basis, sports discipline. The Food and Nutrition Board recommended nutrition based on age, height, and body weight gain in relation to physical activity. Some genetic factors, such as the PPAR-encoding gene, play a key role in metabolism. The aim of the study was to investigate the effect of specific snacks on performance. Methods. Seventeen girls aged 10–14 years practising artistic gymnastics were enrolled. A carb or protein/carb snack was provided before the training, and a questionnaire was administered at the end. In addition, saliva samples were collected for gen…
Quality of autochthonous Sicilian plums
2015
Thirty four plum local varieties and accessions obtained from different growing area of the Sicilian island were analyzed for their qualitative and nutraceutical properties and three commercialcultivar were used as references. These properties included the fruit fresh weight (g), the pulp firmness (FFF), the total soluble solids (TSS), the titratable acidity (TA), the total anthocyanins,the phenolics content and the antioxidant activity.This preliminary study showed significantly differeces among the plums; Zuccarato giallo and Prunu Niuru presented TSS higher than the commercial cultivars (24.9 and 21.6 °Brix respectively)and interesting data obtained on the nutraceutical compounds values …
Nutritional and microbiological quality of tiger nut tubers (Cyperus esculentus), derived plant-based and lactic fermented beverages
2018
International audience; Tiger nut (Cyperus esculentus) is a tuber that can be consumed raw or processed into beverages. Its nutritional composition shows a high content of lipid and dietary fiber, close to those of nuts, and a high content of starch, like in other tubers. Tiger nuts also contain high levels of phosphorus, calcium, and phenolic compounds, which contribute to their antioxidant activity. From those characteristics, tiger nuts and derived beverages are particularly relevant to limit food insecurity in regions where the plant can grow. In Europe and United States, the tiger nut derived beverages are of high interest as alternatives to milk and for gluten-free diets. Fermentation…
Intended or Unintended Doping? A Review of the Presence of Doping Substances in Dietary Supplements Used in Sports
2017
Introduction: The use of dietary supplements is increasing among athletes, year after year. Related to the high rates of use, unintentional doping occurs. Unintentional doping refers to positive anti-doping tests due to the use of any supplement containing unlisted substances banned by anti-doping regulations and organizations, such as the World Anti-Doping Agency (WADA). The objective of this review is to summarize the presence of unlabeled doping substances in dietary supplements that are used in sports. Methodology: A review of substances/metabolites/markers banned by WADA in ergonutritional supplements was completed using PubMed. The inclusion criteria were studies published up until Se…
Effect of energy density on liking and on caloric adjustment conditioning after sweet beverage exposure in children aged 8-11 y
2014
The contribution of sweet beverages to weight gain in children and adolescents is controversial. The present study was conducted to study, in 8-11 year-old children, the influence of energy conditioning on liking and on caloric adjustment after sweet beverages exposure. We also studied the stability of the conditioning effects after a period without exposure and an extinction period. Children (n = 44) were exposed to 2 flavored sweetened beverages: a high energy version (HE: 150kcal) and a no energy version (NE: 0kcal). During a 4-wk conditioning period, children were exposed either 2 or 7 times to each beverage. During a 3-wk stability period children were not exposed to any beverage. Duri…
Notre cerveau est-il responsable de nos préférences alimentaires ?
2016
Publication du texte correspondant à la présentation invitée à destination d'un public professionnel lors des 18e entretiens de Nutrition de l'Institut Pasteur de Lille le 9 juin 2016 à Lille (France); Notre cerveau est-il responsable de nos préférences alimentaires ?
Solving a Bloody Mess: B-Vitamin Independent Metabolic Convergence among Gammaproteobacterial Obligate Endosymbionts from Blood-Feeding Arthropods an…
2015
Endosymbiosis is a common phenomenon in nature, especially between bacteria and insects, whose typically unbalanced diets are usually complemented by their obligate endosymbionts. While much interest and focus has been directed toward phloem-feeders like aphids and mealybugs, blood-feeders such as the Lone star tick (Amblyomma americanum), Glossina flies, and the human body louse (Pediculus humanus corporis) depend on obligate endosymbionts which complement their B-vitamin-deficient diets, and thus are required for growth and survival. Glossiphoniid leeches have also been found to harbor distinct endosymbionts housed in specialized organs. Here, we present the genome of the bacterial endosy…
Effets de la variabilité interindividuelle de la salive humaine (flux et composition) sur la libération d’arômes et la perception de la flaveur chez …
2018
International audience
A survey on lifestyle and attitudes on fruit and vegetable consumption and participation in physical activity in a sample of secondary school and uni…
2010
<p><strong>Background</strong>: Fruit and vegetable (F&amp;V) consumption, and physical activity (PA), are thought to be some of the most important protective factors that can improve long-term health quality of life. Many epidemiological studies indicate, in fact, that F&amp;V consumption and PA are health-promoting and are correlated with the beneficial effects and positive outcomes such as preventing some chronic diseases. Evidence, however, indicates that large proportions of adolescents are not consuming the minimum servings of F&amp;V as recommended by experts and a high percentage of them have sedentary habits.</p><p><strong>Objective a…