What causes the burning feeling in fatigued legs after a hard run? If lactate is actually cleared very quickly, then what causes the burning? Or is there residue or something?
What causes the burning feeling in fatigued legs after a hard run? If lactate is actually cleared very quickly, then what causes the burning? Or is there residue or something?
Pain is weakness leaving the body.
Muscle micro tears? It was found not too long ago that lactic acid was not responsible for delayed onset soreness. So who the heck knows! Rest is the only treatment I know of.
Demonic possession by ill humours
Lactate is always the blamed culperate for both acute and prolonged muscle soreness. Without lactate production, glycolysis is difficult to continue. We need lactate. So.. Acute soreness, ie: while you’re running, is something that we do not know the result of. Some point to a neuromuscular component to prevent further muscular damage. As for prolonged soreness, ie: DOMS, is from actual damage to the muscle tissue, not from some residual BS that people claim.
Lactate is produced to clear hydrogen ions (the real culprit) not the misconception that lactate is bad, it's actually trying to protect the muscle from becoming too acidic.
As lactate is being produced at a rate that the body cant clear fully, the hydrogen ions reduce pH in the blood. As the blood pH lowers pain tolerance and increased rate of exertion, hence why the tired burning leg feeling is predominantly worse in events that are more anaerobic in nature i.e 800m.
Good form and faster running is like having sex it's gonna hurt.
:)
gloria wrote:
Good form and faster running is like having sex it's gonna hurt.
:)
Colorless green ideas sleeping furiously, in your legs
pooloflactate wrote:
What causes the burning feeling in fatigued legs after a hard run? If lactate is actually cleared very quickly, then what causes the burning? Or is there residue or something?
Burning feel is a NASA conspiracy. It's caused by the fluor in water.
pooloflactate wrote:
What causes the burning feeling in fatigued legs after a hard run? If lactate is actually cleared very quickly, then what causes the burning? Or is there residue or something?
It's the muscle growing and stretching the skin.
What you're feeling is inflammation in one sort or another. It's the signal that you did something that took your body further than it felt comfortable doing. It's your body calling out for resources to build it up stronger. We tend to associate that burning dull buzzing sensation after a long hard run with pain at first, but once you understand whats happening it becomes ever so glorious. I love that feeling. I know what it means. 6 weeks of it and my legs are steel again.
it's the loss of sugars around the leg muscles and elasticity
pooloflactate wrote:
What causes the burning feeling in fatigued legs after a hard run? If lactate is actually cleared very quickly, then what causes the burning? Or is there residue or something?
My legs only burn when I run on pure hate. Less than a minute after a 800m, 1500m, 3000m, and sometime 5000m the burning goes away. The burn is only the last 300-500m. Shorter race equals more burn.
I've never got there in a 10k or 21.1k. in a 42.2k I've gotten there when I hit the wall and try to accelerate. I don't have pure hate so I slow down immediately and the burning goes away immediately.
Lactic acid fermentation
Glucose and glycogen ferment to lactate. All three are sugars.
There is no lactic acid, but there is an accompanying production of acidity from Anaerobic respiration which is what people refer to as lactic acid or lactic, the burn you feel when you try to hold a faster pace than you can sustain or do something you aren't used to.
But lactate is a fermented sugar to be used in Aerobic respiration.
Other posters have already mentioned post exercise aches and pains and the reasons for them.