Nutritional status of adventure racers

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• 作者：Ioná ; Zalcman ; Heloisa Vidigal Guarita ; Claudia Ridel Juzwiak ; Cibele Aparecida Crispim ; Hanna Karen Moreira Antunes ; Ben Edwards ; Sé ; rgio Tufik ; Marco Tú ; lio de Mello
• 关键词：Nutritional status ; Ultraendurance ; Adventure race ; Athletes ; Food intake
• 刊名：Nutrition
• 出版年：2007
• 期刊代码：81_08999007
• 类别：abs
• 出版时间：May 2007
• 卷：23
• 期：5
• 页码：404-411
• 文件大小：120 K

摘要

Objective

We describe the usual food intake, body composition, and biochemical profile of adventure racers during their training season and evaluate their energy and nutrient intake in relation to current recommendations for ultraendurance athletes.

Methods

Twenty-four adventure race athletes (18 men and 6 women), 24 to 42 y of age, participated in the study. Food intake was determined with a 3-d food record and body composition by plethysmography. Blood samples were obtained from all subjects for biochemical analyses. All assessments were made during the usual training phase.

Results

Female athletes had a higher body fat percentage than did male athletes (20.2 ± 5.7%versus 12.5 ± 3.5%). For men and women, food intake was high in protein (1.9 ± 0.5 g/kg in men, 2.0 ± 0.4 g/kg in women) and fat (1.6 ± 0.3 g/kg in men, 1.5 ± 1.3 g/kg in women). Carbohydrate intake of male athletes was at the lower limit of that recommended (5.9 ± 1.8 g/kg). For most vitamins and minerals, athletes’ intake was adequate, with the exception of magnesium, zinc, and potassium in men and women and vitamin E and calcium in women, which presented a high probability of being inadequate compared with reference values. High blood levels of total cholesterol and low-density lipoprotein cholesterol were found in female athletes (201.0 ± 44.7 and 104.1 ± 43.1 mg/dL, respectively) and all other biochemical analyses were within normal reference values.

Conclusion

The adventure racers presented an inadequate nutritional profile when compared with recommendations for endurance exercise. These athletes need to be educated about consuming an adequate diet to meet the nutritional needs of their activity.