Leg fatigue is a key symptom encountered during distance running. And last spring, short hikes used to really tire me out! Overall tiredness and wobbly legs were part of my fatigue when walking or running. How come?
Increasing leg fatigue during exercise indicates that the leg muscles are acquiring task failure. Deconditioning results in more leg fatigue at a given pace. And fatigue occurring for a long time after intense exercise is common for persons with myalgic encephalomyelitis as well as chronic fatigue syndrome (ME/CFS) and with multiple sclerosis (MS). Thus, leg fatigue is an important symptom pointing to some of the limiting factors of distance performance.
