♛ Aerobic fitness.
Aerobic activities condition your heart and lungs. Aerobic means "with oxygen." The purpose of aerobic conditioning is to increase the amount of oxygen that is delivered to your muscles, which allows them to work longer.
♞ Muscle strengthening.
Stronger muscles can mean either more powerful muscles that can do bigger jobs (such as lifting heavier weights) or muscles that will work longer before becoming exhausted (endurance).
♚Flexibility.
Like aerobic fitness and muscle strengthening, flexibility is a result of physical activity. Flexibility comes from stretching. Your muscles are repeatedly shortened when they are used, especially when exercising.
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