9781422272121

WORDS TO UNDERSTAND aerobic— of or relating to an activity that increases the body’s demand for oxygen, thereby resulting in marked temporary increase in respiration and heart rate cardiovascular endurance— the ability of the heart, lungs, and circulatory system to supply oxygen to working muscles during a prolonged period of exercise muscular endurance— the ability of muscle fibers to continuously produce force without fatigue phosphocreatine— a molecule found in muscle tissue that provides energy for short, intense muscular contraction VO2 max — a measure of aerobic fitness that represents the intensity at which the body maximizes its ability to use oxygen as fuel

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Endurance Training

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