In its most normal meaning, physical fitness is a normal state of good physical health. Obtaining and maintaining physical fitness is a result of physical activity, allowable diet and food and of policy allowable rest for physical recovery. In its simplest terms, physical fitness is to the human body what fine-tuning is to an engine. It enables people to achieve up to their potential. Regardless of age, fitness can be described as a health that helps individuals look, feel and do their best. Thus, physical fitness trainers, describe it as the potential to achieve daily tasks vigorously and alertly, with left over energy to enjoy leisure-time activities and meet emergency demands. Specifically true for senior citizens, physical fitness is the potential to endure, bear up, withstand stress and carry on in circumstances where an unfit someone could not continue.
In order for one to be determined physically fit, the heart, lungs, and muscles have to achieve at a confident level for the private to continue feeling capable of performing an activity. At the same time, since what humans do with their bodies directly affects the state of mind, fitness influences to some degree qualities such as mental alertness and emotional expression.
Physical fitness is often divided into the following categories in order for people to be able discover its components or parts. Particularly, physical fitness is judged by:
1. Cardiovascular endurance: This is the potential of the body to deliver oxygen and nutrients to tissues and to remove wastes over sustained periods of time.
2. Muscular vigor & endurance: vigor deals with the potential of the muscle to exert force for a brief time period, while stamina is the potential of a muscle, or group of muscles, to retain repeated contractions or to continue to apply force against an inert object.
3. Flexibility: This denotes the potential to move joints and use muscles straight through their full range of motion.
4. Body composition: determined as one of the components of fitness, composition refers to the body in terms of lean mass (muscle, bone, vital tissue, and organs) and fat mass. Actually, the optimal ratio of fat to lean mass is an indication of fitness. Performing the right set of exercises can help people get rid off body fat and increase or enunciate muscle mass.
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