muacular dystrophy

Katrina Etchu

Causes of Muscular dystrtophy

This condition is caused by defects in genes that control muscle development and function. In some cases, the genes are passed from parent to child. In other cases, the genetic mutation occurs spontaneously.


The main sign of muscular dystrophy is progressive muscle weakness. Specific signs and symptoms begin at different ages and in different muscle groups, depending on the type of muscular dystrophy.

Signs and symptoms typically appear between the ages of 2 and 3, and may include:

  • Frequent falls
  • Difficulty getting up from a lying or sitting position
  • Trouble running and jumping
  • Waddling gait
  • Walking on the toes
  • Large calf muscles
  • Muscle pain and stiffness
  • Learning disabilities



  • Assistive devices, such as braces, crutches, or wheelchairs, help you move. ...
  • Physical and occupational therapy are programs to help you learn how to take care of yourself. ...
  • Surgery may be done to release tight muscles so it is easier for you to move.

LIfe expectancy

This is the most common form of MD affecting only boys. Since, this is an X-linked genetic disorder, males are the victims of it. However, females may carry the defective gene, and pass it on to their offspring. The symptoms of DMD are evident between the age of 2 to 6, when the child shows abnormal muscle development. By the time the child reaches 10 to 13 years of age, he becomes bound by a wheelchair. The disease keeps on progressing such that during late teens the child falls prey to several heart and respiratory disorders. People with this disorder rarely survive their early twenties.
Read more at Buzzle:

3 important facts or points

Initial symptoms include deformities, scoliosis (crooked spine), decreased muscle tone, intellectual retardation or a waddling action when walking.

MD can be treated using surgical methods such as tendon release, where the tendon connecting the calf muscle to the ankle joint is severed. This is done to reduce the side effects of muscle shortening.
• The average lifespan of a person diagnosed with Duchenne MD is roughly 20 years, however, people diagnosed with Becker MD are said to have a normal life expectancy.