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Glossary
Chapter 7
Aerobic Exercise that requires oxygen to produce the necessary energy (ATP) to carry out the activity. Circuit training Alternating exercises by performing them in a sequence of three to six or more. Cool-down Tapering off an exercise session slowly. Dysmenorrhea Painful menstruation. Endorphins Morphine-like substances released from the pituitary gland in the brain during prolonged aerobic exercise; thought to induce feelings of euphoria and natural well-being. Exercise intolerance Inability to function during exercise because of excessive fatigue or extreme feelings of discomfort. Frequency How often a person engages in an exercise session. Functional capacity The ability to perform ordinary and reasonably unusual demands of daily life without limitations and excessive fatigue or injury. Functional independence Ability to carry out activities of daily living without assistance from other individuals. Heart rate reserve (HRR) The difference between the maximal heart rate and the resting heart rate. Heat cramps Muscle spasms caused by heat-induced changes in electrolyte balance in muscle cells. Heat exhaustion Heat-related fatigue. Heat stroke Emergency situation resulting from the body being subjected to high atmospheric temperatures. Hypothermia A breakdown in the body’s ability to generate heat; a drop in temperature below 95 degrees F. Intensity In cardiorespiratory exercise, how hard a person has to exercise to improve or maintain fitness. Intensity (for flexibility exercises) Degree of stretch when doing flexibility exercises. MET Represents the rate of resting energy expenditure at rest; MET is the equivalent of 3.5 ml/kg/min. Maximal heart rate (MHR) Highest heart rate for a person, related primarily to age. Mode Form of exercise. Rate of perceived exertion (RPE) A perception scale to monitor or interpret the intensity of exercise. Resting heart rate (RHR) Heart rate after a person has been sitting quietly for 15–20 minutes. Resting metabolism Amount of energy (expressed in milliliters of oxygen per minute or total calories per day) an individual requires during resting conditions to sustain proper body function. Shin splints Injury to the lower leg characterized by pain and irritation in the shin region or front of the leg. Side stitch A sharp pain in the side of the abdomen. Thermogenic response Amount of energy required to digest food.
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