Drug Medical Information

PRINCIPLES OF EXERSISE

FOR THE PAST year, I have seen Maya in the university gymnasium almost every time I work out. It doesn't seem to matter what time I choose to exercise, she is also there exercising. Finally, I couldn't resist asking her about her exercise habits and was not surprised to learn that she trains seven times weekly for two to three hours each session in a combination of formal aerobic classes, weight training, jogging, and stationary cycling. Nor was I surprised to hear that she has recovered from a number of overuse injuries, is tired most of the time, and suffers from aching muscles and sore knees.
Although Maya is doing a lot of things correctly, it is obvious that she is overdoing the training and does not thoroughly understand the basic principles of exercise such as the PRE principle, cross training, altering light and heavy workouts, and other key concepts that protect the body from injury and ensure safe progression to higher levels of fitness.
You may know someone like Maya. The situation is a common one that can be avoided through the application of the exercise principles discussed in this chapter.
Once the decision to begin a fitness program has been made, you are ready to master the principles that will help you achieve a higher level of aerobic (cardiorespiratory) fitness; increase muscular strength, muscular endurance, and flexibility; and help you lose or maintain body weight and fat.
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