Kinesiology 2230A/B Study Guide - Midterm Guide: Italian National Olympic Committee, Chief Operating Officer, Citric Acid Cycle
27 Oct 2014
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Introductory exercise physiology midterm 1 study notes. Energy can neither be created nor destroyed, it can only change form from one to another: ex. Northern lights are energy from the sun reacting with the earths magnetic energy. The potential to do work defines energy. N biological reactions, energy will produce heat therefore intake and output can be measured in kcals or joules (1kcal = 4. 2kj) 1 kcal represents the amount of energy necessary to raise the temperature of 1kg of water 1 degree at 15 degrees: efficiency = (work produced/free energy of atp) or output/input. 70-80-% of energy used in our bodies is released as heat therefore exothermic reactions: these chemical reactions occurring in the muscles are vital for maintaining body temperature at rest 37 degrees. Nutritional sources of energy: fats, carbohydrates and protein, all are composed of carbon, hydrogen and oxygen, protein also contains nitrogen, cho are stored within the muscles and are the most readily available source.
