| Term | Definition |
| Cardiovascular Endurance | the capacity of the heart and lungs to deliver blood and oxygen to the working muscles during exercise |
| Intensity | known as exceptionally great concentration, power, or force |
| Time | a non-spatial continuum in which events occur in apparently irreversible succession from the past through the present to the future |
| Aerobic | requires the heart and lungs to work harder to meet the body's increased oxygen demand |
| Anaerobic | does not require oxygen. It is exercise that builds muscles through tension |
| Heart Rate | the rate at which the heart beats; usually measured to obtain a quick evaluation of a person's health |
| Target Zone | (pertaining to heart rate) a guideline that can help you measure your fitness level before and after you begin an exercise program |
| Muscular Endurance | the body's ability to exercise whole muscle groups over an extended period of time at moderate intensity, utilizing aerobic energy |
| Muscular Strength | the maximum force that can be generated by a specific muscle or muscle group |
| Flexibility | the capability of being bent repeatedly without injury or damage |
| Body Density | considered to be the mass, weight, solidity, thickness, substantiality, or heaviness of one's body |
| Frequency | the number of complete repetitions and/or cycles of a periodic process occurring per unit time |