In the most ordinary sense, physical fitness is a general state of good physical health. Obtaining and maintaining physical fitness is the result of exercise, proper diet and nutrition, and of course proper rest for physical recovery. In its simplest terms, physical fitness is to the human body what fine-tuning is to an engine. It allows people to perform up to their potential. Regardless of age, fitness can be described as a condition that helps individuals look, feel and do their best. Thus, physical fitness trainers, describing it as the ability to perform daily tasks vigorously and alertly, with energy left over for enjoying leisure-time activities and meeting emergency requirements. Especially true for the elderly, physical fitness is the ability to endure, carry a withstand stress and carry on in circumstances where an unfit person could not continue.
In order for one to be considered physically fit, the heart, the lungs, and muscles to perform at a certain level for the individual to continue feeling able to perform operations. At the same time, as they do with their bodies directly affects the state of mind, the ability to effect 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 to explore the part or parts. Specifically, physical fitness is judged by
1. Cardiovascular endurance: This is the body’s ability to deliver oxygen and nutrients to tissues and to remove waste on a sustained time.
2. muscular strength and endurance, concentration deals with the ability of the muscle to have power for a short time, but endurance is the ability of a muscle or group of muscles, to sustain repeated contractions or to continue to use force an inert object.
3. Flexibility: This represents the ability to move joints and use muscles through their full range of motion.
4. Body composition: considered one of the components of fitness, composition refers to the body in terms of lean mass (muscle, bone, vital tissues and organs) and fat mass. Actually, the optimal ratio of fat to lean mass is an indication of ability. Perform the right set of exercises can help people get rid off body fat and increase or maintain muscle mass.