越野滑雪运动员的合理营养膳食研究

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Abstract： Cross-country sking is a winter endurance sport that demands extremely high physical fitness，and its unique athletic characteristics pose a chalenge toathletes’ nutritional support.This article systematicallyanalyzes the core sportscharacteristics ofcroscountryskiers，suchas extremelyhigh energyconsumptionanaerobicandaerobic mixed energy supply， high participation of whole body muscle groups，and chalenges in severe cold environments. A comprehensive nutritional demand framework covering macro nutrients，water electrolytes，and micronutrients is constructed，and specific and actionable dietary recommendations are proposed for diferent stages of daily training， pre competition， in competition，and post competition recovery，forming a full cycle nutritional support system.

Keywords： cross-country skiing; sports nutrition; energy consumption; dehydration; glycogen load

越野滑雪运动是在起伏的雪原山林间，凭借滑雪板与滑雪杖，全程依靠运动员自身力量进行移动和竞速的滑雪项目。（剩余5321字）