Physical fitness is to the human body what fine-tuning is to an engine. It is not a race, it’s a pursuit. In its most general meaning, physical fitness is a general state of good physical health. It is a foundation for a long and successful life.
Physical fitness is usually measured by periodic tests measuring strength, endurance, agility, coordination, and flexibility. Physical fitness is the capacity of the heart, blood vessels, lungs, and muscles to function at optimum efficiency.
It has two meanings — General fitness (a state of health and well-being) and specific fitness (the ability to perform specific aspects of sports or occupations). Physical Fitness is important, even on bed rest.
A general-purpose physical fitness program must address the following essentials:
Cardiovascular Fitness: It is the ability of the circulatory and respiratory systems to supply oxygen to muscles during continuing physical activity.
Regular exercises enable more blood to be pumped with each stroke of heart.
Flexibility Training: Stretching increases the range of motion of a joint. It improves suppleness.
Strength Training: Strength training is the use of resistance to muscular contraction to build the strength, and size of skeletal muscles.
Muscular Endurance: Endurance is the ability to exert for a long period of time. In humans, it is usually used in aerobic or anaerobic exercise.
Body Composition: In physical fitness, body composition is used to describe the percentages of fat, bone and muscle in human bodies.
Fitness, most importantly cardio-respiratory fitness, has been directly correlated to the mortality rate. Fitness can be described as a condition that helps us look, feel, and do our best.
In previous years, fitness was commonly defined as the capacity to carry out the day’s activities without undue fatigue. These days, physical fitness is considered a measure of the body’s ability to function efficiently and effectively in work and leisure activities, to be healthy, to resist diseases, and to meet emergency situations.
Many sources also cite mental and emotional health as an important part of overall fitness. This is often presented in textbooks as a triangle made up of three sub-sections, which represent physical, emotional, and mental fitness.
Physical fitness involves the performance of the heart, lungs, and muscles. And, since what we do with our bodies also affects what we can do with our minds, fitness influences to some degree qualities such as mental alertness and emotional stability.
People normally prefer walking for fitness activities followed in order by: swimming, fishing, bicycle riding, camping, golf, bowling, exercise equipment, hiking, hunting, aerobics, calisthenics, jogging, and tennis. Women prefer fitness-related indoor activities and men prefer outdoor sports.