Final answer:
Athletes should consume a meal rich in carbohydrates before an event to provide the necessary fuel for intense physical activity. A big pasta dinner the night before a competition helps replenish glycogen stores, while simple sugars a few hours before provide a quick source of energy to the muscles. A candy bar the night before may not be as beneficial due to its lack of complex carbohydrates.
Step-by-step explanation:
Athletes should consume a meal rich in carbohydrates before an event. This is because carbohydrates are easily digested and provide the body with the necessary fuel for intense physical activity. A big pasta dinner the night before a competition is recommended because it helps to replenish the body's glycogen stores, which are important for sustained energy during exercise. As for simple sugars a few hours before the competition, they provide a quick source of energy to the muscles. This can help enhance performance during short bursts of intense activity. However, it is important to note that consuming a candy bar the night before a competition may not be as beneficial because it primarily provides a high amount of sugar without the necessary complex carbohydrates that are needed for sustained energy.