Select the most appropriate sentence below:

Question

BlackTom AI · Accepted Answer

Let's evaluate each option in turn to determine which sentence best matches established carbohydrate guidelines for endurance-type activities.
Option 1: 'The general carbohydrate intake recommendation for an athlete performing 1–3 hours of moderate to high exercise per day is 6–10 g/kg/day.' This aligns with widely accepted guidelines that recommend roughly 6–10 g of carbohydrate per kilogram of body weight per day for athletes engaging in daily training of 1–3 hours, with adjustments based on training intensity and goals. This option is consistent with standard sports nutrition recommendations.
Option 2: 'The general carbohydrate intake recommendation ... is 3–5 g/kg/day.' This lower range underestimates typical needs for athletes in the 1–3 hour daily window, especially when exercise is moderate to high in intensity; it would likely be inadequate for sustaining glycogen stores and performance.
Option 3: 'The general carbohydrate intake recommendation ... is 12–15 g/kg/day.' This higher range is usually reserved for high-volume training or ultra-endurance workloads, not the typical 1–3 hour daily training scenario; it may be excessive for most athletes in this category and could lead to unnecessary energy surplus.
Option 4: 'The general carbohydrate intake recommendation ... is 2–4 g/kg/day.' This range is below even the commonly cited lower bound for athletes and would likely be insufficient to maintain glycogen and energy during regular moderate to high intensity sessions.
In summary, Option 1 accurately reflects the standard guideline for athletes training about 1–3 hours daily, while Options 2, 3, and 4 provide ranges that are either too low or too high for the described situation, leading to potential underfueling or overfueling depending on context.

Select the most appropriate sentence below: 单项选择题

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