Athletes can use several strategies to maintain energy levels during competition, such as consuming easily digestible carbohydrates for a quick energy boost. Planning calorie intake before and during events helps sustain energy while preventing fatigue. Proper hydration is also crucial, helping to maintain peak performance. Implementing short, high-intensity efforts can maximize energy expenditure effectively. Lastly, practicing mental strategies, such as positive visualization, can help manage stress and maintain focus, thereby preserving energy throughout competition.