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 Duchenne muscular dystrophy (DMD): DMD affects young boys, causing progressive muscle weakness, usually beginning in the legs. 2  It is the most severe form of muscular dystrophy. 3  DMD occurs in about 1 in 3,500 male births, and affects approximately 8,000 boys and young men in the United States.imb-girdle muscular dystrophy (LGMD) â This form of muscular dystrophy begins in late childhood to early adulthood and affects both men and women, causing weakness in the muscles around the hips and shoulders.