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Carbohydrate Availability and Physical Performance: Physiological Overview and Practical Recommendations.

Fernando Mata1, Pedro L Valenzuela2, Jaume Gimenez3

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This summary is machine-generated.

Carbohydrate availability significantly impacts athletic performance and training adaptations. Optimal intake strategies depend on exercise type and goals, requiring personalized nutrition periodization for athletes.

Keywords:
ergogenic aidsexercisesport nutritionsupplement

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Area of Science:

  • Sports Nutrition
  • Exercise Physiology
  • Metabolic Adaptations

Background:

  • Carbohydrates (CHO) are crucial for sport performance, acting as both an energy source and signaling molecule.
  • Glycogen availability influences exercise-induced adaptations, with varying effects based on intensity and duration.
  • Understanding CHO's role is key for optimizing athletic outcomes.

Purpose of the Study:

  • To provide a comprehensive review of how carbohydrate availability affects athletic performance.
  • To offer practical, evidence-based recommendations for combining training and nutrition strategies.
  • To highlight the individualized nature of carbohydrate intake for athletes.

Main Methods:

  • Narrative review of existing scientific literature.
  • Analysis of studies investigating carbohydrate availability and exercise performance.
  • Synthesis of research on training adaptations related to carbohydrate metabolism.

Main Results:

  • High CHO availability is critical for high-intensity performance and resistance training adaptations.
  • Low CHO availability may enhance endurance adaptations like mitochondrial biogenesis and fat utilization.
  • Performance outcomes are context-dependent, influenced by exercise type, intensity, and duration.

Conclusions:

  • No universal carbohydrate recommendations exist for all athletes.
  • Nutrition strategies must be periodized based on training demands and specific athletic objectives.
  • Personalized carbohydrate intake is essential for maximizing performance and adaptation.