Cardio exercise - Exercise that gets the heart rate up for a long period of time, Pulse - Rhythmic throbbing of the arteries, Heart rate - Speed of heart contractions per minute, Aerobic exercise - Using oxygen to meet energy demands during exercise, Anaerobic exercise - Exercise that does not use oxygen to fuel muscles, Cardiac muscle - Heart , MHR - maximum heart rate, THR - Target heart rate, RHR - resting heart rate, Exercise - Activity requiring physical effort to improve or sustain health,

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