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Doctor insights on: How Does Lactic Acid Interfere With Muscle Contraction

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I have a question regarding lactic acid buildup in muscles?

I have a question regarding lactic acid buildup in muscles?

It goes away: They say "pain is just weakness leaving the body". But it's really lactic acidosis building up in the muscles. This occurs as part of the normal metabolism of glucose by your muscle in the absence of oxygen (called anaerobic metabolism). The Lactic Acid clears from the muscles (and your body) with rest, plenty of fluids and appropriate nutrition. ...Read more

Muscle (Definition)

It is a body tissue that has the ability to contract. It shortens and generates force. It relaxes and returns to its original length. Muscles move joints, stabilize the body, move air and food through the organs, act as valves for bladder, bowel and other organs. They control movement of the eyes. They help us express ourselves by changing the shape of our ...Read more


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Will a muscle relaxer help lactic acid?

Will a muscle relaxer help lactic acid?

No. : Lactic acid is normal products of muscle strong or prolonged activity. It is helpful to have warm pad apply to increase blood circulation to bring the acid away. Muscle relaxer is not work on blood vessels and may have significant side effects, not indicate to use for this purpose. ...Read more

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What is the role of lactic acid in muscle metabolism?

What is the role of lactic acid in muscle metabolism?

Lactic acidosis: Lactic acid is an end product of "anerobic metabolism". Normally cells use oxygen as a substrate for metabolism however if there is not enough oxygen available cells have an altered metabolic process where the end product is lactic acid Treatment is aimed at restoring normal perfusion. Individuals who exercise can generate lactate but it is rapidly removed due to a healthy cardiovascular system ...Read more

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Where does lactic acid fermentation occur? Is that what makes muscles burn when you work out?

Where does lactic acid fermentation occur? Is that what makes muscles burn when you work out?

Lack of oxygen-: -& lactic acid build up. Your heart rate goes up to try& remove it but it burns because the demand on the muscles is greater than the circulatory system can remove it. ...Read more

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When i'm practicing and i feel depressed or anxious because i'm not doing well suddenly my muscles feels like they're full of lactic acid , why?

When i'm practicing and i feel depressed or anxious because i'm not doing well suddenly my muscles feels like they're full of lactic acid , why?

Practicing what?: Muscles can become fatigued and "full of lactic acid, " resulting in a burning sensation. You don't mention what you're practicing -- is it a sport? A musical instrument? Other? Anxiety can cause physical sensations that become uncomfortable, such as muscle tension, tingling of different parts of the body, heart pounding, shortness of breath, etc. ...Read more

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How can I remove the lactic acid from my muscle tissue?

How can I remove the lactic acid from my muscle tissue?

It is already done: Your body removes it as fast as it can, and you cannot do anything to change it. ...Read more

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Does icing an overstretched muscle reduce lactic acid ? If so, how ?

Does icing an overstretched muscle reduce lactic acid ? If so, how ?

Icing...: ...Reduces the metabolic rate of the muscle, and therefore the rate at which it produces new lactic acid, allowing the old Lactic Acid to get washed away with blood flow. ...Read more

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Can you explain to me how athletes can feel less pain of lactic acid, I mean how in detail their muscle adapts to it?

Can you explain to me how athletes can feel less pain of lactic acid, I mean how in detail their muscle adapts to it?

Increased blood flow: Lactic acid comes from anaerobic metabolism (metabolism in the absence of oxygen). Over time, athletes increase their blood supply to muscles thus delivering more oxygen to muscle the decreasing the amount of Lactic Acid build up. Also, the body rids itself of Lactic Acid via the lungs. As they train, athletes become more efficient at "breathing out" lactic acid. ...Read more

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Can lactic acid in muscles cause prickling sensations and soreness ?

Can lactic acid in muscles cause prickling sensations and soreness ?

yes: Lactic acid in muscles typically causes cramping. But it can be perceived as itching or soreness. Increase your fluids to 2 liters a day and wash it out! ...Read more

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Is there any effects of ssri on lactic acid build up in the muscle during swimming practice?

No: Lactic acid is a byproduct of anaerobic exercise, that is, vigorous exercise that outpaces the body's ability to supply oxygen to the tissues. It's not dangerous but can be painful; it helps to work the muscles to a gradual stop instead of stopping suddenly. To the best of my knowledge, ssris have no effect on this process. ...Read more

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How athlete muscle cells get adapted day after day to lactic acid buildup ???

How athlete muscle cells get adapted day after day to lactic acid buildup ???

Lactic acid: This is the by product of anaerobic metabolism. Athlete's train very rigorously to both adapt to this and condition so that they get to anaerobic glycolysis later in their sport. Everyone has a different tolerance to the pain that comes from Lactic Acid as well as the level at which it occurs ( based on training). The only thing you can do is to do your best in your sport . ...Read more

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What can cause muscle burning with no weakness ? Normal CPK aldolase ESR and lactic acid 5 times each...No 1 can figure it out..Horrible pain all day

Ouch: Hard to say. Maybe someone called it fibromyalgia which is a pain syndrome without a good explanation. Sounds like over-the-counter pain meds haven't helped. There are pills like Gabapentin that help for various nervy pain problems. Maybe ask about it. ...Read more

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Can adrenaline rushes cause lactic acid build up ? Or cause muscle pain or burning ? Had like 10 of them during a poker tournament.Not the same since

Can adrenaline rushes cause lactic acid build up ? Or cause muscle pain or burning ?  Had like 10 of them during a poker tournament.Not the same since

Adrenal rush: Is an internet hoax. It doesn't happen or cause anything, much less Lactic Acid buildup. See the Adrenalin rush blog for more info. ...Read more

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Quads and other leg muscles still sore after 3 days (from first workout), what is the best way to get rid of lactic acid build up?

Quads and other leg muscles still sore after 3 days (from first workout), what is the best way to get rid of lactic acid build up?

Overdoing workouts: It sounds like you did too much during your first workout. Enthusiasm is great, but you need to go slowly to start. Get some guidance from a trainer as to how to get a workout routine started, make sure you are adequately hydrated and do warm up and cool down stretching . These things should go a long way to prevent your post-workout soreness. ...Read more

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Last night I was vomiting very forcefully. Right after that my muscles, particularly my biceps, became very sore. Other muscles to a lesser extent. After 9 hours this is beginning to subside. Is the some type of lactic acid release from the vom?

Last night I was vomiting very forcefully.   Right after that my muscles, particularly my biceps, became very sore.  Other muscles to a lesser extent.  After 9 hours this is beginning to subside.   Is the some type of lactic acid release from the vom?

Yes and no.: It's a lactic acid response, but not from the vomiting. When we vomit, we tend to spasm the muscles in our bodies, some more than others. Chest wall and abdominal muscles are usually the most affected. If you "held on tight" to something during the episode, your arm muscles can be affected most. This should clear within 48 hrs. Make sure you are hydrating well (6-7, 8oz glasses daily). ...Read more

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Have chronic shingles with severe pain and stiffening of muscles in both legs. Could Valtrex (valacyclovir) be causing a lactic acid problem?

Have chronic shingles  with  severe pain and stiffening  of muscles in both legs. Could Valtrex (valacyclovir) be causing a lactic acid problem?

Valtrex (valacyclovir): It is unlikely that Valtrex (valacyclovir) is causing muscular aches. The most common side effects are nausea, headache, vomiting, dizziness, fatigue, rash, depression, and abdominal pain. However, it is known that Valtrex (valacyclovir) can give you joint pain. Shingles, can give you flu like symptoms including muscle pains. I hope you feel better soon. ...Read more

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Normal emg/ncv normal CPK normal lactic acid but I have intense burning pain in my arms and legs...With no weakness.Just very bad burning muscle pain?

Medication complicat: The symptoms are from the atenolol and if they are from that med you probably have an intolerance to all beta blockers and medication metabolized by cytochrome p450 system in the liver. Need to stop the meds and check to see if you have enough magnesium in you body you probably need magnesium supplements. ...Read more

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Contraction (Definition)

This usually has to do with the onset of labor. It is a muscular tightening of the uterus. Contractions are timed from beginning to end of hardening of the uterus (duration) and from beginning of one contraction until the beginning of the next (frequency). A third descriptor is intensity or how hard ...Read more


Dr. Hollis Potter
675 doctors shared insights

Lactic Acid (Definition)

Lactic acid ...Read more