{"id":44238,"date":"2007-08-01T00:00:00","date_gmt":"2018-12-04T02:19:59","guid":{"rendered":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/nutritional-and-plasmatic-antioxidant-vitamins-status-of\/"},"modified":"2018-12-04T03:19:59","modified_gmt":"2018-12-04T02:19:59","slug":"nutritional-and-plasmatic-antioxidant-vitamins-status-of","status":"publish","type":"resume","link":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/nutritional-and-plasmatic-antioxidant-vitamins-status-of\/","title":{"rendered":"Nutritional and plasmatic antioxidant vitamins status of ultra endurance athletes."},"content":{"rendered":"<p>OBJECTIVE: The \u00ab\u00a0Marathon des Sables\u00a0\u00bb (MDS) is a competition known to induce oxidative stress. Antioxidant vitamins prevent exercise-induced oxidative damages. The purpose of this study was to evaluate daily intake and plasma level of the main antioxidant vitamins (alpha-tocopherol, vitamin C, beta-carotene and retinol) in 19 male athletes who participated in this competition. METHODS: Data collected before the beginning of the competition included daily dietary intake using a 7-day food record and plasma biochemical measurements (alpha-tocopherol, vitamin C, beta-carotene and retinol). RESULTS: First, total energy intake was obviously lower than the energetic intake usually observed in well-trained endurance athletes. Second, antioxidant vitamins intake was also insufficient. Indeed, the intake was lower than the French Dietary Reference Intakes (DRI) for this population in 18 subjects for vitamin E and 6 subjects for vitamin C, beta-carotene and Retinol Equivalent. As a significant relationship was found between total energy intake and the intake of vitamin E (r = 0.73; p &lt; 0.001) and vitamin C (r = 0.78; p &lt; 0.001), the low total energy intake contributed partially to the insufficient antioxidant vitamins intake. The dietary questionnaire analysis also revealed a low intake of vegetable oils, fruits and vegetables. However, plasma concentrations of these antioxidant vitamins were similar to the literature data observed in athletes. CONCLUSION: This study evidenced obvious insufficient energy intake in ultra endurance athletes associated with a low antioxidant vitamin intake.<\/p>\n","protected":false},"template":"","mots_cles":[],"class_list":["post-44238","resume","type-resume","status-publish","hentry"],"acf":{"adresse":"Laboratoire de Physiologie et de Biom\u00e9canique de l'Exercice Musculaire, UFRAPS Rennes 2, EA 1274, Avenue Charles Tillon, Campus la Harpe, CS 24414, 35044 Rennes Cedex, France. guillaume.machefer@uhb.fr","annee":"2007","mois":"8","numero":"26(4)","page":"311-16","auteurs":[{"ID":44230,"post_author":"0","post_date":"2018-12-04 03:19:54","post_date_gmt":"2018-12-04 02:19:54","post_content":"","post_title":"Vincent","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"vincent","to_ping":"","pinged":"","post_modified":"2018-12-04 03:19:54","post_modified_gmt":"2018-12-04 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02:19:57","post_content":"","post_title":"Youssef","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"youssef","to_ping":"","pinged":"","post_modified":"2018-12-04 03:19:57","post_modified_gmt":"2018-12-04 02:19:57","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/youssef\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":44236,"post_author":"0","post_date":"2018-12-04 03:19:58","post_date_gmt":"2018-12-04 02:19:58","post_content":"","post_title":"Malarde","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"malarde","to_ping":"","pinged":"","post_modified":"2018-12-04 03:19:58","post_modified_gmt":"2018-12-04 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