mechanistic
Overtraining can make your heart beat faster at rest, respond poorly during exercise, and thicken your blood, making it harder for oxygen to reach your muscles and making your legs feel heavy.
Evidence from Studies
No evidence studies found yet.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.