topicElectrolyte Hydration Fatigue Randomized Trial
claimWhile research conflicts on whether carbohydrate ingestion during exercise spares muscle glycogen, it consistently demonstrates reduced liver glycogenolysis [].
evidence level1
citationSalame Adriana (2026)
sourceCarbohydrate supplementation for endurance exercise in the heat: a systematic review with practical recommendations
topicElectrolyte Hydration Fatigue Randomized Trial
claimBeyond exercise-induced gastrointestinal disturbances, cardiovascular strain further damages the gastrointestinal barrier and impairs gastric emptying, perpetuating a cycle of heat stress-associated dehydration, tissue hypoperfusion and impaired fluid, electrolyte, and energy replacement [].
evidence level1
citationSalame Adriana (2026)
sourceCarbohydrate supplementation for endurance exercise in the heat: a systematic review with practical recommendations
topicElectrolyte Hydration Fatigue Randomized Trial
claimIn contrast, muscle glycogenolysis decreases with carbohydrate ingestion, which is consistent with reduced muscle fatigue under hot conditions [].
evidence level1
citationSalame Adriana (2026)
sourceCarbohydrate supplementation for endurance exercise in the heat: a systematic review with practical recommendations
topicElectrolyte Hydration Fatigue Randomized Trial
claim1 2 3 4 Muscle and liver glycogen critically determine fatigue during prolonged exercise [].
evidence level1
citationSalame Adriana (2026)
sourceCarbohydrate supplementation for endurance exercise in the heat: a systematic review with practical recommendations
topicElectrolyte Hydration Fatigue Randomized Trial
claimFor example, statistics from the 2022/23 UEFA Champions League season revealed that when the match temperature was ≥21 °C, both total distance covered and high-speed running distance were markedly lower than in matches played at 6–10 °C, with sprint frequency also reduced [].
evidence level4
citationDai Xincheng (2026)
sourceNutritional Strategies to Support Performance Maintenance and Recovery in Football Under Hot Environmental Conditions: A Narrative Review
topicElectrolyte Hydration Fatigue Randomized Trial
claimIn hot environments, increased skin blood flow and heavy sweating facilitate heat dissipation; however, if fluid and electrolyte replacement is insufficient, dehydration and electrolyte imbalance occur, leading to reductions in plasma volume, decreased cardiac output, and elevated heart rate, thereby increasing cardiovascular strain [].
evidence level4
citationDai Xincheng (2026)
sourceNutritional Strategies to Support Performance Maintenance and Recovery in Football Under Hot Environmental Conditions: A Narrative Review
topicElectrolyte Hydration Fatigue Randomized Trial
claimSubjective fatigue and thermal discomfort are also greatly increased in hot environments: during constant-intensity exercise at 35 °C, ratings of perceived exertion (RPEs) were 2–3 points higher than at 20 °C and remained consistently elevated throughout exercise [].
evidence level4
citationDai Xincheng (2026)
sourceNutritional Strategies to Support Performance Maintenance and Recovery in Football Under Hot Environmental Conditions: A Narrative Review
topicElectrolyte Hydration Fatigue Randomized Trial
claim1 2 3 4 5 With the progression of global climate warming, football matches held in hot climates have become increasingly frequent, and the performance and health of players in high-temperature environments have attracted widespread attention [,].
evidence level4
citationDai Xincheng (2026)
sourceNutritional Strategies to Support Performance Maintenance and Recovery in Football Under Hot Environmental Conditions: A Narrative Review