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davison chapter 13

review chapter 13

QuestionAnswer
physical activity Any movement that requires large muscle groups to work.
endorphins Chemicals that block pain messages from reaching brain cells and produce feelings of pleasure.
physical fitness Having the energy and strength to participate in a variety of activities.
body composition A measure of how much body fat a person has, as compared to muscle and bone.
aerobic exercise An ongoing physical activity that raises your breathing and heart rates.
anaerobic exercise Intense physical activity that lasts for a few seconds to a few minutes.
isometric exercise Exercise in which muscles contract but very little body movement occurs.
isotonic exercise Exercise that involves contracting and relaxing muscles through the full range of their joint’s motion.
isokinetic exercise Exercise performed with machines that ensure muscles contract at a constant rate.
lifelong fitness The ability to stay healthy and fit as you age.
FITT formula A fitness plan that depends on four factors of exercise: frequency, intensity, time, and type.
target heart rate The heart rate at which your cardiovascular system receives the most benefits from exercise without working too hard.
cross-training Participating in a wide variety of activities.
dehydration A serious reduction in the body’s water content.
dietary supplement Any product that contains one or more vitamins, minerals, herbs, or other dietary substances lacking in the diet.
overtraining Exercising too intensely or for too long without allowing enough time for rest.
Created by: kandrews3434