Body-building is a growing sport worldwide. Once considered only for men, it currently is enjoyed by thousands of women as well. Participants in this sport combine diet and specific weight training to develop maximum muscle mass and minimum body fat. Thus all skeletal muscles must be developed to their maximum. It is relatively simple for the uniformed, untrained muscle builder to build some muscles and ignore others; the result is a disproportioned body. Skill, training, and concentration are required to build all the muscles, to know which exercises build a large number of muscles and which are specialized to build certain parts of the body.
Body-building has its own language in which it is improper to refer to a muscle by its full name. Body-builders refer to the “lats”, “traps”, and “delts” rather than the lattissimus dorsi, trapezus, and deltoids.
Body-builders concentrate on increasing skeletal muscle mass. Endurance tests conducted several years ago demonstrated that the cardiovascular and respiratory abilities of body-builders were similar to those abilities in normal, healthy persons untrained in a sport. However, more recent studies of American scientists indicate that the cardio-respiratory fitness of body-builders is similar to that of other well-trained athletes. The difference between the new studies and the older studies is attributed to modern body-building techniques that include aerobic exercise.
Photographs of body-builders are very useful in the study of anatomy to identify easily the surface anatomy of muscles that cannot be seen easily in untrained people.
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