Is it true that lactic acid gives your muscles energy after the fatigue?

Question

I heard it from someone who I think knows what he is talking about.

Answer 1

Yes, it is true.
Believe it or not, lactic acid has been discovered to actually help energize the muscles. It acts as a "middle man" for metabolizing carbohydrates. A lot of the glucose from the intestine actually bypasses the liver, and goes directly into the bloodstream to be used by the active muscles. Glucose is broken down into lactic acid, which then arrives at the liver via the circulatory system, where it is used by the liver as a building block for making glycogen, which is storable fast energy. So, LACTIC ACID ESSENTIALLY ALLOWS THE BODY 2 SOURCES OF ENERGY; one from the original glucose molecule, the second from the liver, as it re-uses the glycogen to make yet more glucose.
We have been erroneously taught for years that lactic acid is what causes muscle cramps in athletes. Not so. What causes the cramping and pain, are tiny tears that develop in muscles from hard use. That is why weight lifters should lift only every other day, or better yet, twice weekly. Also, cross training is advised, so that the same muscles aren't used all the time.

Answer 2

Lactic acid is something your muscles produce naturally as a way to cool them down during a work out. When it builds up it limits the movement of the muscles and is why cool-downs and stretching after a work out is so important. It will disperse naturally, but if you allow it to build up without a cool down enough times you can get permanent problems.

Answer 3

As I recall from my days of weight lifting for sports in HS and college, lactic acid is part of the building action of muscles after exercise. It's a good thing.

Answer 4

No. Lactic acid builds up in your muscles and makes them fatigued.

Answer 5

During intense exercise, such as sprinting type activities, when the rate of demand for energy is high, lactate is produced faster than the ability of the tissues to remove it and lactate concentration begins to rise. This is what makes us begin to weaken during exercise. I learned it in Physical Education last year. lactic acid causes muscles to fatigue.Lactic acid is the breakdown product of glucose and glycogen within the bloodstream produced during a process called glycolysis. There is so much i could say but i hope this helps. If you want my whole knowledge, just email me and i will send it to you.