摘 要：铁人三项是由游泳、自行车、长跑3个有氧项目组成的综合性新兴体育运动项目，具有较强的观赏性和竞争性，对运动员体能和各项运动技术均有较高要求。本文根据铁人三项运动项目的特点，结合运动员的膳食营养需求，深入分析铁人三项运动员在日常膳食中存在的问题并针对性地提出相关营养建议，为运动员采取合理的膳食营养搭配提供科学依据，从而提高我国铁人三项运动员的营养知识水平和竞技水平。

    关键词：铁人三项；运动员；膳食营养

    Abstract： Triathlon is a comprehensive new sports event composed of swimming， cycling and long-distance running. It has strong appreciation and competition， and has higher requirements for athletes’ physical fitness and various sports techniques. Based on the characteristics of triathlon events and the dietary nutrition needs of athletes， this paper deeply analyzes the problems existing in the daily diet of triathlon athletes and puts forward relevant nutrition suggestions in order to provide scientific basis for athletes to adopt reasonable dietary nutrition collocation， so as to improve the nutritional knowledge level and competitive level of Chinese triathlon athletes.

    Keywords： triathlon; athlete; dietary nutrition

    由于竞技比赛中对抗激烈，情况复杂，尤其针对铁人三项这类户外项目，除了运动员自身综合运动能力和不可控的环境因素外，合理的膳食营养补充对运动员同等重要。科学合理的膳食营养有助于提高运动能力，是保证运动员营养素需要和维持健康状态的最重要的物质基础 ......