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Exercise Intolerance is a term used to describe a condition where the patient is unable to do physical exercise at the level or for the duration that would be expected of someone in his or her general physical condition, or experiences unusually severe post-exercise pain, fatigue, or other negative effects. Exercise intolerance is not a disease or syndrome in and of itself, but a symptom.
Additional recommended knowledge
Since there are many possible specific reasons why exercise could be inhibited, this is a rather slippery term. For instance, the patient may experience unusual breathlessness (dyspnea), muscle pain (myalgia), or increasing muscle weakness while exercising, or may, after exercise, experience severe headache, nausea, dizziness or extreme fatigue. In most cases the specific reason that exercise is not tolerated is of considerable significance when trying to isolate the cause down to a specific disease.
Exercise intolerance is primarily found in organic brain diseases, mitochondrial diseases and neuromuscular diseases. It is considered the central symptom in chronic fatigue syndrome. Exercise intolerance can also be caused by heart conditions or conditions that cause back pain. Several heart conditions, such as a cardiac arrhythmia (abnormal heart rate or rhythm) or an aortic valve insufficiency, if severe enough can cause activity problems such as shortness of breath and/or exercise intolerance. People with acute back pain from an injury or chronic back pain (e.g., from a degenerative condition) may also experience exercise limitations due to muscle spasms or limited range of spinal motion. Overtraining can also cause the intolerance.
Exercise is key for many heart and back patients, and a variety of specific exercise techniques are available for both groups. Some exercise specialists (e.g., physical therapists, athletic trainers) are trained in modifications specific to these patients.
Certain conditions in particular exist where exercise, particularly rehabilitation, may be contraindicated, including:
Other conditions may also preclude exercising under certain conditions. Passive physiotherapy can in some instances be an alternative for some patients unable to safely self-power.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Exercise_intolerance". A list of authors is available in Wikipedia.|