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Doctor insights on: Causes Of Exercise Intolerance

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What are the causes of exercise intolerance, and how does one acquire the disease?

What are the causes of exercise intolerance, and how does one acquire the disease?

Could be serious: A severe drop in your ability to exercise should be evaluated by a doctor. Although it could be as minor as a cold, or just overtraining, it could be an early sign of a serious heart or lung condition. ...Read more

Dr. Heidi Fowler
5,149 Doctors shared insights

Exercise Or Physical Activity (Definition)

Exercise is a physical activity that is completed to maintain or improve health. Benefits of exercise include weight maintenance, improving mood, increasing energy, preventing or controlling chronic diseases, promoting better sleeping, and improving sex life and libido. ...Read more


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What causes exercise intolerance?

What causes exercise intolerance?

Many things: Hormonal problems, heart related conditions, lung related conditions, low blood counts (anemia). .. just to name a few things! ...Read more

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What could cause exercise intolerance in a thin 17 year-old?

What could cause exercise intolerance in a thin 17 year-old?

Probably a medical c: Probably a medical cause. Depending on other factors, anemia may be a root cause. The bottom line is that this 17 year old needs to be seen soon. ...Read more

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Can being underweight cause tiredness and exercise intolerance?

Can being underweight cause tiredness and exercise intolerance?

See below: Yes: Underweight might be secondary to or symptomatic of an underlying disease. Unexplained weight loss needs evaluation asap. Severely underweight individuals may have poor physical stamina and a weak immune system, leaving one open to infection. Malnutrition due to poor/inadeq intake, genetics, underlying mental or physical disease need to be ruled out. ...Read more

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Can being underweight cause fatigue or exercise intolerance?

Can being underweight cause fatigue or exercise intolerance?

Yes: An individual needs enough energy stores during exercise to avoid fatigue or cramps. The body preferentially burns simple and complex carbohydrates first, then protein, then fat. If you don't have enough carbohydrate energy stores then protein (muscle) is broken down and then fat. The caveat is that some well trained underweight people don't have a problem but they have done extensive training. ...Read more

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Stress test stated moderate to severe ischemia anterior/apical. Heart cath says stress test false p, no blocks, but mild elevated EDP/LBBB. Is this causing dyspnea and exercise intolerance? Help?

Stress test stated moderate to severe ischemia anterior/apical. Heart cath says stress test false p, no blocks, but mild elevated EDP/LBBB. Is this causing dyspnea and exercise intolerance? Help?

Yes: Elevated EDP indicates left ventricular dysfunction. You did not report what your ejection fraction (EF) is - it's crucial. Your EDP may be elevated from systolic and/or diastolic dysfunction. Moreover, LBBB causes dys-synchrony which further compromises LV function. Both abnormalities you list will result in impaired functional capacity manifested as exercise intolerance. ...Read more

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Can my anxiety and depression problems cause me to have exercise intolerance? How?

Can my anxiety and depression problems cause me to have exercise intolerance? How?

Depression can: Drain your energy and lead to lack of motivation. Anxiety can exert energy - eventually leaving you exhausted. However, - stay physically active because exercise is a great antidote to both anxiety ; depression. Take care. ...Read more

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Does low testosterone cause penis shrinkage and exercise intolerance?

Does low testosterone cause penis shrinkage and exercise intolerance?

Possibly: A truly low level can have those effects but there is much over-diagnosing of "low T". It should be measured in the early morning hours and repeated at least once. Only truly low levels warrant replacement hormone. There is a potential for serious side effects. ...Read more

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Can a Vitamin D deficiency cause muscle weakness, shakiness and exercise intolerance? I have low vitamin D, I'm being treated, on week 2, feel awful

Can a Vitamin D deficiency cause muscle weakness, shakiness and exercise intolerance? I have low vitamin D, I'm being treated, on week 2, feel awful

Severe vitamin D def: May cause Adults to experience "bone pain" as well as muscle weakness. There is no clear pattern of symptoms. In fact many people remain asymptomatic despite low levels. But here are the more common symptoms: Fatigue, General muscle pain and weakness, Muscle cramps, Joint pain, Chronic pain, Weight gain, High blood pressure, Restless sleep, Poor concentration, and Headaches. ...Read more

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What could cause a vitamin d deficiency and exercise intolerance?

What could cause a vitamin d deficiency and exercise intolerance?

Different issues: Vitamin d deficiency is common in the us due low exposure to sun, low milk consumption and obesity. If you are deficient in vitamin d you can take over the counter supplement. Exercise intolerance can be due to many causes from lack of physical activity to many systemic disorders and you should consult your doctor. ...Read more

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What adrenal issues cause shortness of breath, severe stress intolerance, weak immunity, exercise intolerance? Gp wants me 2 c specialist for adrenals.

What adrenal issues cause shortness of breath, severe stress intolerance, weak immunity, exercise intolerance? Gp wants me 2 c specialist for adrenals.

Low adrenal function: You have symptoms of low adrenal function. The medical profession recognizes addison's disease, an extreme form of low adrenal function. However, only 1 in 10, 000 people have severe enough adrenal problems to qualify for addison's, but millions have lesser yet significant degrees of poor adrenal function. See http://www. Adrenalfatigue. Org/ and the book adrenal fatigue by dr. James wilson. ...Read more

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I'm 21 and since a bad flu 3 months ago, I've been having tachycardia and extreme exercise intolerance. Ekgs, echo and troponins have been normal, but potassium is low despite high dietary intake. Causes?

I'm 21 and since a bad flu 3 months ago, I've been having tachycardia and extreme exercise intolerance. Ekgs, echo and troponins have been normal, but potassium is low despite high dietary intake. Causes?

Low potassium levels: You may have a problem with potassium (k) wasting, possibly by your kidneys. If you had no wasting of k, k supplements would have elevated your blood k level. See a nephrologist to rule out a renal cause of k loss. Good luck. ...Read more

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What are signs of exercise intolerance?

What are signs of exercise intolerance?

Think along the: Lines of more shortness of breath and/or fatigue than you would otherwise expect at any particular level of exercise (exertion). ...Read more

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So what are signs of exercise intolerance?

So what are signs of exercise intolerance?

Powerful Impact: The signs of exercise intolerance can include unusual breathlessness, muscle pain, and increasing muscle weakness with exercise. After exercise one can experience headaches, dizziness and fatigue. Exercise intolerance can have a profound negative impact forcing an individual to make significant lifestyle changes. ...Read more

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What is the definition or description of: Exercise intolerance?

What is the definition or description of: Exercise intolerance?

Exercise intolerance: Is when one has less ability to perform physical exercise than one can reasonably expect. It can also involve problems after exercise like nausea, vomiting, extreme fatigue or pain. ...Read more

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Exercise intolerance in a thin 17 year-old is from anorexia?

Exercise intolerance in a thin 17 year-old is from anorexia?

Likely The Cause: Patients suffering from anorexia nervosa restrict their intake leading to protein-energy malnutrition. This in turn causes muscle dysfunction and finally exercise intolerance. In one study all subjects showed impaired muscle function on strength and exercise measurement. 50% of patients showed nerve damage and tissue biopsies showed muscle damage at the microscopic level. ...Read more

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If all of my general health assessments indicate I'm healthy, but I'm still having exercise intolerance, what type of doctor do you recommend seeing?

A psychologist: May be able to help you understand why you are having difficulty with exercising if all of your objective testing and evaluations are normal. ...Read more

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I have had extreme exercise intolerance that is getting worse. I used to exercise 1 hour daily. Now I'm exhausted after 10 min. What could this be?

Illness: Could be a problem with your heart. Possibly a hormone problem such as the thyroid. Symptoms like these deserve a full evaluation in person by your health care provider. ...Read more

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RE: Exercise Intolerance- the mitochondrial disorder. Is it possible that this and CFS could be one and the same? Any studies done to check this out?

RE: Exercise Intolerance- the mitochondrial disorder. Is it possible that this and CFS could be one and the same? Any studies done to check this out?

Not likely: Easy fatigue is just one symptom of mitochondrial disease which is a rare medical condition cause by mutations in mitochondrial genes encoding enzymes involve in cellular oxidative metabolism. In contrast to chronic fatigue syndrome which is not uncommon, mitochondrial disorders are often associated with-neurological and cardiac dysfunction and abnormal muscle biopsy ...Read more

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Hello I have severe exercise intolerance from lactic acid build up. I've been having uncontrollable weight gain, but eat very healthy. Any tips on WL?

Hello I have severe exercise intolerance from lactic acid build up. I've been having uncontrollable weight gain, but eat very healthy. Any tips on WL?

Loosing weight too: Fast can be dangerous. See your doc first, and then consider lower carb and higher protein intake. Exercise daily if possible, even brisk walking 20-30 minutes is helpful. Above all, like yourself and others no matter what the scale says. Peace and good health. ...Read more

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43yom. Exercise intolerance/muscle fatigue out of blue last3-5wks. Tons of bloodtests, normal. How long if not better is rare muscle disorder likely?

43yom. Exercise intolerance/muscle fatigue out of blue last3-5wks. Tons of bloodtests, normal. How long if not better is rare muscle disorder likely?

See your PCP: Get a referral to a cardiologist.
Depends what blood test done and for what reason. Make sure do liver and kidney function test
if under stress talk to your friend. If lack of sleep get chamomile tea, or yogurt helps you to sleep. ...Read more

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Have been having constant chest pain which radiates to my back for 5 days, EKG normal, exercise intolerance, but ativan (lorazepam) relieved. What could it be? Help

Have been having constant chest pain which radiates to my back for 5 days, EKG normal, exercise intolerance, but ativan (lorazepam) relieved. What could it be? Help

Many things: I assume the above investigations are normal? Anxiety can certainly present with chest discomfort relieved with ativan (lorazepam). Problems with your stomach or digestive system may also present with chest discomfort. Be sure to follow up with your doctor. ...Read more

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Tsh: 0.013 (0.27-4.7), ft4: 19.7 (12-22), ft3: 5.2 (3.1-6.8). Exercise intolerance, tired & breathlessness. To wait & recheck later or any advice?

Tsh: 0.013 (0.27-4.7), ft4: 19.7 (12-22), ft3: 5.2 (3.1-6.8). Exercise intolerance, tired & breathlessness. To wait & recheck later or any advice?

Hyperthyroidism: The low TSH indicates that your thyroid levels are high for you, despite the normal ft4 and ft3 levels. If you had no symptoms we would call this subclinical hyperthyroidism. If your doctor feels that your symptoms are related to your thyroid, treatment would be indicated. Overall, it is reasonable to wait 4-6 weeks and repeat the levels. ...Read more

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Hypoglycemia documented with glucose meter and ogtt, gained 10kg in 1 year, no diabetes, hunger, dizziness, exercise intolerance, glycogen issues.

Hypoglycemia documented with glucose meter and ogtt, gained 10kg in 1 year, no diabetes, hunger, dizziness, exercise intolerance, glycogen issues.

Sorry!: Sorry. Hypoglyciemia is very uncommon in people without diabetes. Meters are not accurate and do not confirm the diagnosis nor are ogts. Ask your doctor to allow you to wear a continous glucose sensor-ipro for 3 days. ...Read more

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I have exercise intolerance. Muscles seize up, fatigue even when not training. Got muscle biopsy and was inconclusive. I'm lost as to what to do next?

I have exercise intolerance. Muscles seize up, fatigue even when not training. Got muscle biopsy and was inconclusive. I'm lost as to what to do next?

What's your Doc say?: If you're so far as to have gotten a muscle or muscle/nerve biopsy then, that means you're being aggressively worked up for your symptoms. I understand YOU may not know "where to go next" but in all fairness, isn't that's why you have a doctor? They likely have more in their bag of tricks than just an inconclusive biopsy. So what's next? Talk to your doctor about next steps to be taken.. ...Read more

Dr. Julie Abbott
73 Doctors shared insights

Exercise Intolerance (Definition)

Is when one has less ability to perform physical exercise than one can reasonably expect. It can also involve problems after exercise like nausea, vomiting, ...Read more