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davison chapter 13
review chapter 13
| Question | Answer |
|---|---|
| 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. |