The Claim
In trained male endurance athletes, prolonged exercise in the heat (150 minutes at 65% VO2max in 33°C) reduces skeletal muscle glycogen by approximately 44% and muscle water content by about 13%, indicating that combined thermal and metabolic stress significantly depletes both energy and hydration stores in muscle tissue.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When fit male runners exercise for a long time in hot weather, their muscles lose nearly half their fuel and over 10% of their water — showing that heat and hard effort together really drain both energy and hydration from muscles.
See the scientific wording
Prolonged exercise in the heat (150 minutes at 65% VO2max in 33°C) reduces muscle glycogen by approximately 44% and muscle water content by about 13% in trained male endurance athletes, demonstrating that combined thermal and metabolic stress significantly depletes both energy and hydration stores in skeletal muscle.
What the research says
1 studyThe study looked at what happens to muscles after long, hot workouts and found they lose about 44% of their energy stores and 13% of their water, just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.