The Most Expensive iRobot Roombas. iRobot is an American robotic and advanced technology company that develops and sells a variety of autonomous robots for both household consumers and the military/police. The company was first founded in 1990 and primarily concerned itself with developing robots for the armed services, such as bomb-difusing robots.
Muscular dystrophies are a group of genetic conditions characterized by progressive muscle weakness and wasting (atrophy). The Duchenne and Becker types of muscular dystrophy are two related conditions that primarily affect skeletal muscles, which are used for movement, and heart (cardiac) muscle.These forms of muscular dystrophy occur almost exclusively in males.he Duchenne and Becker types of muscular dystrophy are two related conditions that primarily affect skeletal muscles, which are used for movement, and heart (cardiac) muscle.
1 Distal. 2  This group of rare diseases affects adult men and women. 3  It causes weakness and wasting of the distal muscles (those farthest from the center) of the forearms, hands, lower legs, and feet. 4  It is generally less severe, progresses more slowly, and affects fewer muscles than other forms of muscular dystrophy.ome types of muscular dystrophy affect only males; some people with MD enjoy a normal life span with mild symptoms that progress very slowly; others experience swift and severe muscle weakness and wasting, dying in their late teens to early 20s. The various types of MD affect more than 50,000 Americans.