1. Ratio of body fat to lean body mass (including water, bones muscles and connective tissues) Having too many fat tissues is a risk factor for cardiovascular diseases diabetes, cancer, and arthritis 2 Refers to the ability of the muscles to work over an extended period of time without fatigue. Performing push-ups and sit-ups or crunches or one minute is commonly used in fitness testing of muscular endurance 3. Ability to move a body part through a full range of motion (ROX at a joint 4. Ability of the heart (cardio) and circulatory system (vascular) to supply oxygen to muscles for an extended period of time 5. Ability of the muscles to work over an extended period of time without fatigue