Muscle Disorders: Difference between revisions

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Sometimes the cause is not known.<br>  
Sometimes the cause is not known.<br>  


== Types: ==
== Types: ==


<ref name="library">http://uhealthsystem.com/health-library/neuro/disorder/muscular/musctype</ref>Muscular dystrophy is a group of inherited diseases that are characterized by weakness and wasting away of muscle tissue, with or without the breakdown of nerve tissue. There are nine types of muscular dystrophy, with each type involving an eventual loss of strength, increasing disability, and possible deformity.
<ref name="library">http://uhealthsystem.com/health-library/neuro/disorder/muscular/musctype</ref>Muscular dystrophy is a group of inherited diseases that are characterized by weakness and wasting away of muscle tissue, with or without the breakdown of nerve tissue. There are nine types of muscular dystrophy, with each type involving an eventual loss of strength, increasing disability, and possible deformity.  


The most well known of the muscular dystrophies is Duchenne muscular dystrophy (DMD), followed by Becker muscular dystrophy (BMD).
The most well known of the muscular dystrophies is Duchenne muscular dystrophy (DMD), followed by Becker muscular dystrophy (BMD).  


'''Becker:'''Symptoms are almost identical to Duchenne but less severe; progresses more slowly than Duchenne; survival into middle age.
'''Becker:'''Symptoms are almost identical to Duchenne but less severe; progresses more slowly than Duchenne; survival into middle age.  


'''Congenital:'''Symptoms include general muscle weakness and possible joint deformities; disease progresses slowly; shortened life span.


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'''Duchenne:'''Symptoms include general muscle weakness and wasting; affects pelvis, upper arms, and upper legs; eventually involves all voluntary muscles; survival beyond 20s is rare.
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'''Distal:'''Symptoms include weakness and wasting of muscles of the hands, forearms, and lower legs; progression is slow; rarely leads to total incapacity.
 
'''Limb-Girdle:'''Symptoms include weakness and wasting, affecting shoulder girdle and pelvic girdle first; progression is slow; death is usually due to cardiopulmonary complications.
 
'''Myotonic:'''Symptoms include weakness of all muscle groups accompanied by delayed relaxation of muscles after contraction; affects face, feet, hands, and neck first; progression is slow, sometimes spanning 50 to 60 years.<br> &lt;/div&gt; <br>


== Reference:  ==
== Reference:  ==
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Revision as of 09:29, 16 August 2014

Descripation:[edit | edit source]

The terms ’muscle disease’, ‘muscular dystrophy’, ‘neuromuscular conditions’ and ‘neuromuscular disorders’ all describe a large group of conditions which affect either the muscles, such as those in the arms and legs or heart and lungs, or the nerves which control the muscles. [1]

Causes:[edit | edit source]

Causes of muscle disorders include[2]
  • Injury or overuse, such as sprains or strains, cramps or tendinitis
  • A genetic disorder, such as muscular dystrophy
  • Some cancers
  • Inflammation, such as myositis
  • Diseases of nerves that affect Muscle
  • Infectious Diseases
  • Certain medicines

Sometimes the cause is not known.

Types:[edit | edit source]

[3]Muscular dystrophy is a group of inherited diseases that are characterized by weakness and wasting away of muscle tissue, with or without the breakdown of nerve tissue. There are nine types of muscular dystrophy, with each type involving an eventual loss of strength, increasing disability, and possible deformity.

The most well known of the muscular dystrophies is Duchenne muscular dystrophy (DMD), followed by Becker muscular dystrophy (BMD).

Becker:Symptoms are almost identical to Duchenne but less severe; progresses more slowly than Duchenne; survival into middle age.

Congenital:Symptoms include general muscle weakness and possible joint deformities; disease progresses slowly; shortened life span.

Duchenne:Symptoms include general muscle weakness and wasting; affects pelvis, upper arms, and upper legs; eventually involves all voluntary muscles; survival beyond 20s is rare.

Distal:Symptoms include weakness and wasting of muscles of the hands, forearms, and lower legs; progression is slow; rarely leads to total incapacity.

Limb-Girdle:Symptoms include weakness and wasting, affecting shoulder girdle and pelvic girdle first; progression is slow; death is usually due to cardiopulmonary complications.

Myotonic:Symptoms include weakness of all muscle groups accompanied by delayed relaxation of muscles after contraction; affects face, feet, hands, and neck first; progression is slow, sometimes spanning 50 to 60 years.
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Reference:[edit | edit source]