Tag: Running fatigue

According to research published in Human Kinetics Journals, between 20% and 60% of athletes experience symptoms of fatigue and mood disturbances at some point in their careers. So, is it normal to be tired after running 4 miles? The short answer is yes, but understanding why can help you optimize your recovery.

The human body can store enough muscle glycogen for approximately two hours of continuous running. It's normal to feel tired after an intense effort, but if you're asking, "Why do I feel so depleted after a long run?", it's likely due to a combination of physiological and training factors.