1.1 the muscular system the muscles will grow up. The size of the enlarged muscle fibers (Hypertrophy) and adds the ability to exit. Performance in the work of the muscles increases. The muscles to work for longer because there is less oxygen.
1.1 musculoskeletal system The muscles are growing up. The size of the muscle fibers grow. (Hypertrophy) and adds the ability to exert too. To enhance muscle function increased. Muscles to work for longer. Because there is less oxygen.
1.1 system, muscles are growing up. The size of muscle fibers enlarged (Hypertrophy) and increase the ability to exert. The work efficiency of the muscle increased. The muscles to work longer. Due to oxygen use less.