What Is Muscular Dystrophy?

Muscular Dystrophy: any of a group of hereditary diseases marked by progressive wasting of certain "muscles." (Oxford) A general term for a group of inherited disorders which are characterized by progressive degeneration of skeletal muscles. A group of inherited progressive muscle disorders characterized by muscle weakness and eventual death of the muscle tissues. Examples include “Duchenne muscular dystrophy” and “Becker's muscular dystrophy.” (NCIt) All of the muscles may be affected. Or, only specific groups of muscles may be affected, such as those around the pelvis, shoulder, or face. Muscular dystrophy can affect adults, but the more severe forms tend to occur in early childhood. (PubMedHealth2)) Becker Muscular Dystrophy: an “X-linked”
Myotonic Dystrophy: an inherited progressive disorder affecting the muscles. http://m.kidshealth.org/en/parents/muscular-dystrophy.html?WT.ac= Your cells store energy in the form of ATP. When muscles contract, they break down ATP in a reaction that provides energy. However, muscle cells only store enough ATP to fuel a few seconds of maximal contraction. To keep working, they must replenish their ATP supply. They can do this for a short period of time by breaking down another high-energy compound called creatine phosphate. Because stores of creatine phosphate are also limited, this energy system, called the phosphagen system, can only sustain maximal muscle output for about 10 seconds. The phosphagen system is the primary energy source during very short, rapid bursts of activity, such as a sprint. Example is what i've remember in class, uring rapid, high-intensity exercise, your muscles use large amounts of energy. Within two minutes of exercise, the body starts to supply working muscles with oxygen. When oxygen is present, aerobic respiration can take place to break down the glucose for