运动饮料比水有益吗？

For endurance athletes, sports drinks may help
对于耐力运动员，运动饮料会有帮助

Most sports drinks contain a combination of water, carbohydrates in the form of sucrose or high-fructose corn syrup and electrolytes such as sodium, potassium, and magnesium.
许多运动饮料将水，以蔗糖或高果糖谷物糖浆形式出现的碳水化合物和如钠，钾，镁这些电解质结合在一起。

According to the American College of Sports Medicine, athletes who are performing high-intensity, endurance sports for more than 60-90 minutes, especially in hot weather, may experience an improvement in performance after drinking a sports drink.
根据美国运动医学会报道，进行超过60—90分钟高强度和耐力性运动的运动员，尤其在夏天，喝运动饮料后会表现得更好。

Carbohydrates can help prevent fatigue by boosting blood sugar levels and replacing glycogen stores in muscles.
碳水化合物可以通过提高血糖浓度预防疲劳和补充储存在肌肉中的糖原。

Electrolytes carry electrical impulses through the tissues of the body and are important for maintaining proper fluid levels and muscle function. The average person consumes all the electrolytes they need through their daily diet, however some can be lost during excessive sweating.
电解质使电脉冲通过身体的组织，而且对维持适当液面和肌肉功能很重要。一般人通过日常饮食摄入所需的电解质，然而一些电解质可能在过度出汗时丢失。