EDKP 330 Lecture Notes - Lecture 6: Adenosine Triphosphate, Cardiovascular Disease, Circulatory System
19 Nov 2012
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Moderate activity 30min/day 5-7 days a week. Vigorous acitivity 30min/day 3-5 days a week. ~420min/week we see ~4-% reduction in risk of premature death. Aerobic exercise is the single most important component of health-related physical fitness. Hypokinetic disease: chronic conditions associated with lack of pa. Cardiorespiratory: pertaining to cardiac (heart) and respiratory (lungs) systems. Aerobic- produces energy during pa using o2! Anaerobic- producing energy during pa without o2: short term bursts of energy hockey players, football players, two systems. Atp pc: high amounts of energy quickly (sprinters) Lactic acid system: high intensity, short duration (hockey players) Adenosine triphosphate (atp)- chemical compound that is the immediate source of energy for pa. As blood leaves the heart and passes through arteries, it is high in. As it returns to the heart via veins, it is lower in o2: o2 has been extracted at the tissues who require o2. Note: an athletes heart may appear larger (and therefore stronger) then an untrained individual.
