Dietitian-Observed Macronutrient Intakes of Young Skill and Team-Sport Athletes: Adequacy of Pre, During, and Postexercise Nutrition

• Autores: Lindsay B. Baker, Lisa E. Heaton, Ryan P. Nuccio, Kimberly W. Stein
• Localización: International journal of sport nutrition and exercise metabolism, ISSN 1526-484X, ISSN-e 1543-2742, Vol. 24, Nº. 2, 2014, págs. 166-176
• Idioma: inglés
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• Resumen

  • Context: Sports nutrition experts recommend that team-sport athletes participating in intermittent high-intensity exercise for =1 hr consume 1�4 g carbohydrate/kg 1�4 hr before, 30�60 g carbohydrate/hr during, and 1�1.2 g carbohydrate/kg/hr and 20�25 g protein as soon as possible after exercise. The study objective was to com- pare observed vs. recommended macronutrient intake of competitive athletes under free-living conditions. Methods: The dietary intake of 29 skill/team-sport athletes (14�19 y; 22 male, 7 female) was observed at a sports training facility by trained registered dietitians for one 24-hr period. Dietitians accompanied subjects to the cafeteria and field/court to record their food and fluid intake during meals and practices/competitions. Other dietary intake within the 24-hr period (e.g., snacks during class) was accounted for by having the subject take a picture of the food/fluid and completing a log. Results: For male and female athletes, respectively, the mean ± SD (and percent of athletes meeting recommended) macronutrient intake around exercise was 1.4 ± 0.6 (73%) and 1.4 ± 1.0 (57%) g carbohydrate/kg in the 4 hr before exercise, 21.1 ± 17.2 (18%) and 18.6 ± 13.2 (29%) g carbohydrate/hrr during exercise, 1.4 ± 1.1 (68%) and 0.9 ± 1.0 (43%) g carbohydrate/kg and 45.2 ± 36.9 (73%) and 18.0 ± 21.2 (43%) g protein in the 1 hr after exercise. Conclusion: The male athletes� carbohydrate and protein intake more closely approximated recommendations overall than that of the female athletes. The most common shortfall was carbohydrate intake during exercise, as only 18% of male and 29% of female athletes consumed 30�60 g carbohydrate/hr during practice/competition.