Evaluation des apports vitaminique et minéral chez des sportifs adolescents et adultes

Klepping, J; Fuchs, F.; Boggio, Vincent; Moreau, David; Guilland, J. C.; Penaranda, Thierry; Marcer, I.

doi:10.1016/s0765-1597(88)80008-x

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…L'exploitation a été réalisée avec un logiciel de diététique (« Fruit d'Or »), après y avoir introduit les teneurs en 18:3 n-3 des aliments, absentes de cet outil. Ces valeurs sont issues soit de tables de composition [10,11], soit des dosages effectués spécialement au laboratoire.…”

Section: Traitements Des Enquêtes Alimentairesunclassified

Apports alimentaires en acides linoléique et alpha-linolénique d’une population d’Aquitaine

Combe

Boué

2001

OCL

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Apports alimentaires en acides linoléique et alpha-linolénique d'une population d'Aquitaine Linoleic and alpha-linolenic acids supplied by food in a population group in AquitaineOléagineux, Corps Gras, Lipides. Résumé : Les apports alimentaires quotidiens en acides linoléique (18:2 n-6) et alpha-linolénique (18:3 n-3) ont fait récemment l'objet de recommandations pour la population française (ANC 2001). Cependant, peu d'informations sont actuellement disponibles sur la situation réelle, en particulier vis-à-vis du 18:3 n-3. Cette étude montre que la consommation de 18:2 n-6, en Aquitaine (n = 140 femmes), représente en moyenne 4,4 % (± 1,8) de l'apport énergétique total (AET), valeur acceptable par rapport aux ANC (4 %). En revanche, l'apport en 18:3 n-3 est insuffisant (0,34 ± 0,1 % au lieu de 0,8 % recommandé). Dans cette population, le 18:3 n-3 est à 75 % d'origine animale. La contribution des huiles est faible (9 %). La teneur moyenne en 18:2 n-6 et 18:3 n-3 du tissu adipeux des sujets est respectivement égale à 14 % et 0,5 % des acides gras totaux. Dans le plasma, ce sont les esters de cholestérol (EC) qui en véhiculent le plus (53 % de 18:2 n-6 et 0,42 % de 18:3 n-3). Cette étude met en évidence une corrélation positive entre les pourcentages de 18:2 n-6 dans les EC plasmatiques et ceux du tissu adipeux (r = 0,606 et p < 0,001), confirmant que cette fraction plasmatique est un « marqueur » non invasif des apports en acide linoléique.Mots-clés : consommation française, acide linoléique, acide alpha-linolénique, biomarqueurs. Summary :The levels of dietary supply with linoleic acid (LA) and alpha-linolenic acid (LNA) have been revised for French people. However, few data of real intake are actually available, especially regarding LNA. This study shows that, in Aquitaine (n = 140 women), average LA supply (4.4 ± 1,8% of total energy) is in accordance with the recommended value (4%), whereas LNA supply is too low (0.34 ± 0.1% versus 0.8%). Three quarters of total LNA are provided by animal fats. In adipose tissue, LA and LNA levels represent respectively 14% and 0.5% of total fatty acids. In plasma, these fatty acids are mainly incorporated into cholesterol esters (CE) (53% LA and 0.42% LNA). Moreover, LA percentage value in CE is positively correlated with that found in adipose tissue (r = 0.606; p < 0.001). Therefore, plasma CE could be used as a non-invasive indicator of LA intake.

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Section: Traitements Des Enquêtes Alimentairesunclassified

Apports alimentaires en acides linoléique et alpha-linolénique d’une population d’Aquitaine

Combe

Boué

2001

OCL

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“…This method is based on the recapitulation of a list in detail about the daily nourishing during a week. In order to help the confection of the 'weekly inquest', there is a summary abut the guidelines at the beginning of the diary, with some examples that illustrate the recommendations [30]. The statistical treatment of the codified data is carried out with a logistic program, specially built for the purpose, using a personal computer.…”

Section: Dietary Intakesmentioning

confidence: 99%

Effect of Training on Zinc Metabolism: Changes in Serum and Sweat Zinc Concentrations in Sportsmen

Córdova

Cámara

1998

Ann Nutr Metab

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The purpose of this research was to determine the effects of daily physical training on serum and sweat zinc concentrations in professional sportsmen between October and December, during the competing season. Twelve volleyball players and another 12 control subjects have participated in this study. Tests were made in October and December which consisted of a progressive bicycle ergometer test (increasing 30 W every 3 min to reach maximum tolerated power). Blood samples were obtained at rest and immediately after exercise. Total serum zinc increased significantly after maximal exercise in both sportsmen and control subjects. In athletes, the change after exercise was significantly higher in December than in October. The percentage of ultrafiltrable zinc (ZnUf) in October was similar in sportsmen and in controls. In December, however, after exercise, the percentage of ZnUf was higher in athletes. With respect to sweat zinc, it was in the same range both in controls and in sportsmen in October. In December, however, sweat zinc was significantly higher in athletes as compared with the situation in October and with respect to the control group. In October, the zinc concentration of urine was similar for sportsmen and controls. In December, the sportsmen showed an increase in urinary zinc excretion with respect to control subjects. Cortisol in athletes increased significantly after exercise in December. In conclusion, a daily and maintained practice of exercise is probably responsible for an alteration of zinc metabolism. The results suggest that ZnUf control, zinc supplementation and/or stress control appear to be indicated in athletes to prevent the diminution of active ZnUf. In our practical opinion we think that alterations in zinc metabolism with increases in zinc excretion and stress levels lead to a situation of latent fatigue with a decreased endurance.

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Méthodes d'étude de la consommation alimentaire chez les sportifs

et al. 1988

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Evaluation des apports vitaminique et minéral chez des sportifs adolescents et adultes

Cited by 4 publications

References 4 publications

Apports alimentaires en acides linoléique et alpha-linolénique d’une population d’Aquitaine

Apports alimentaires en acides linoléique et alpha-linolénique d’une population d’Aquitaine

Effect of Training on Zinc Metabolism: Changes in Serum and Sweat Zinc Concentrations in Sportsmen

Méthodes d'étude de la consommation alimentaire chez les sportifs

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