As it returns to the heart via the veins, the blood is lower in oxygen because much of it has been extracted along the way by tissues needing oxygen. Oxygen Consumption As blood leaves the heart and passes through the arteries, it is high in oxygen.

Adenosine triphosphate (ATP)-The chemical compound that is the immediate source of energy for physical activity.Īerobic Activity Aerobic means “with oxygen.” As you exercise, your muscles need a steady supply of oxygen to continue contracting and functioning.

Anaerobic-Producing energy for physical activity without oxygen.

Aerobic-Producing energy for physical activity with oxygen.

Cardiorespiratory-Pertaining to the cardiac (heart) and respiratory (lung) systems.

Fitness-The ability of your body systems to work together efficiently to allow you to be healthy and meet life’s daily demands with enough energy left to respond to unplanned events.

Health-A state of complete mental, physical, and emotional well-being.Define the concept of alternative activities and provide examples of those activities.Write an exercise prescription based on the FITT concept.

Develop an exercise prescription based on the 2008 Physical Activity Guidelines for Americans to improve and maintain good health.Describe the components of oxygen consumption, including cardiac output and the A-VO2 difference.Describe the chemical compound ATP and how it is produced by the energy metabolism systems of the human body.Department of Health and Human Services produce and publish the guidelines? Do you know the basic information in the 2008 Physical Activity Guidelines for Americans?.What are the key components of exercise prescription? (continued).What are the four principles of developing an exercise program?.

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