This document discusses cardiovascular exercise and how to determine target heart rate zones for aerobic and anaerobic exercise. It defines aerobic exercise as using oxygen to sustain long periods of physical activity and anaerobic exercise as high intensity bursts that can cause lactic acid buildup. Examples of aerobic and anaerobic activities are provided. The document also provides methods for determining resting heart rate and calculating target heart rate zones, including taking 220 minus age for maximum heart rate.
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