| A | B |
|---|
| physical fitness | A set of physical attributes that allows the body to respond or adapt to the demands and stress of physical effort |
| cardiorespiratory endurance | The ability of the body to perform prolonged, large-muscle, dynamic exercise at moderate-to-high levels of intensity |
| muscular strength | The amount of force a muscle can produce with a single maximum effort |
| muscular endurance | The ability of a muscle or group of muscles to remain contracted or to contract repeatedly for a long period of time |
| flexibility | The range of motion in a joint or group of joints; flexibility is related to muscle length |
| body composition | The proportion of fat and fat-free mass (muscle, bone, and water) in the body |
| cardiovascular disease (CVD) | A collective term for diseases of the heart and blood vessels |
| lipoproteins | Substances in blood, classified according to size, density, and chemical composition, that transport fats |
| endorphins | Brain chemicals that seem to be involved in modulating pain and producing euphoria |
| neurotransmitters | Brain chemicals that transmit nerve impulses |
| cardiorespiratory endurance (aerobic) exercise | Rhythmical, large-muscle exercise for a prolonged period of time |
| electrocardiogram (ECG or EKG) | A recording of the changes in electrical activity of the heart |
| overload | The amount of stress placed on the body; a gradual increase in the amount of overload causes adaptations that improve fitness |
| maximal oxygen consumption (MOC) | The body's maximum ability to transport and use oxygen |
| target heart rate | The heart rate at which exercise yields cardiorespiratory benefits |
| synovial fluid | Found within many joints that provides lubrication and nutrition to the cells of the joint surface |
| resistance exercise | Exercise that forces muscles to contract against increased resistance; also called strength training |
| isometric exercise | The application of force without movement; also called static exercise |
| isotonic exercise | The application of force with movement |
| anabolic steroids | Synthetic male hormones used to increase muscle size and strength |
| cross-training | Participating in two or more activities to develop a particular component of fitness |
