Physical fitness is a state of health and well-being and, more specifically, the ability to perform aspects of sports, occupations in daily activities. Physical fitness is generally achieved through proper nutrition, moderate-vigorous physical exercise, and sufficient rest. Before the industrial revolution, fitness was defined as the capacity to carry out the days activities without undue fatigue. Before the industrial revolution, fitness was defined as the capacity to carry out the days activities with minimum fatigue. However, with automation in changes in lifestyle physical fitness is now considered a measure of the bodies ability to function efficiently and effectively in work and leisure activities, To be healthy, To resist hypokinetic diseases, and to meet emergency situation.
Fitness is defined as the quality of state or being fit. Around 1950, Perhaps consistent with industrial revolution and the treatise of World War II, the term fitness increase in western vernacular by a factor of Ten. Modern definition of fitness describe either a person all machines ability to perform a specific function or a Hellenistic definition of human adaptability to cope with various situations. This has led to an interrelation of human fitness and attractiveness which has mobilized global fitness and fitness equipment industries. Regarding specific function, Fitness is good to person who possesses significant aerobic or anaerobic ability i.e. strength or endurance. Well rounded fitness programs will improve a person in all aspects of fitness, Rather then one, such as only cardio/respiratory endurance or only weight training.
Comprehensive fitness programme tailored for an individual typically focuses on one or more specific skills, one age or health-related needs such as bone health. Many sources also cite mental, social and emotional health as an important part of overall fitness. This is often presented in textbooks is a triangle made up of three points which represents physical, emotional, and mental fitness. Physical fitness can also prevent or treat many chronic health conditions brought on by unhealthy lifestyle or ageing. Working out can also help some people sleep better and possibly alleviates some mood disorders in certain individuals.
Developing research has demonstrated that many of the benefits of exercise are mediated through the role of skeletal muscle as an endocrine organ. That is, contracting muscles release multiple substances known as myokines which promotes the growth of the new tissue, tissue repair, and various anti-inflammatory functions, which in turn reduce the risk of developing various inflammatory diseases.