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Amsterdam, December 17, - Heart and lung complications are responsible for much of the morbidity and mortality associated with Duchenne muscular dystrophy DMD. Although regular monitoring of pulmonary function is recommended in order to detect deterioration, compliance with routine testing, such as hospital-based spirometry, is frequently poor. A new study in the Journal of Neuromuscular Diseases describes the at-home use of a child-compatible, hand-held device HHD that makes monitoring pulmonary function in teens more convenient and provides the data needed for better disease management.

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The Teenager's Guide to Building Muscle

A balanced exercise routine includes aerobic cardio activity, stretching, and strength training. Walking, running, and swimming are examples of aerobic activity. Aerobic activity strengthens your heart and lungs.

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Strength Training

Two teenagers in China ended up in the intensive care unit after doing too many squats, chinapress. That's not a euphemism; "squats" are not a new designer drug you're unaware of at least we don't think they are? The two teen girls were literally squatting over and over again, 1, times apiece, in a contest to see who could flex their glutes the longest.

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It is not just girls these days who are consumed by an unattainable body image. Take David Abusheikh. At age 15, he started lifting weights for two hours a day, six days a week. Now that he is a senior at Fort Hamilton High School in Brooklynhe has been adding protein bars and shakes to his diet to put on muscle without gaining fat.