One of the benefits of exercise is the formation of the body or physical fitness. Physical fitness is the body’s ability to perform daily activities without causing physical and mental fatigue excessive. Physical fitness is very important in supporting the activities of daily life, but the value of physical fitness of each person is different according to the task / profession respectively.
Physical fitness consists of components which are grouped into groups related to health (health-related physical fitness) and a set of related skills (skills related physical fitness).
Components of physical fitness related to health.
A. Composition of the body
1. It is the percentage (%) of total body weight fat and body mass index (BMI).
2. Fat rapidly increased after the age of 30 years and tended to decline after the age of 60 years.
3. Giving the body shape.
4. Measurement: skinfold callipers, IMT.
5. Obesity in children is caused by: hipeplasi and adipocyte cell hypertrophy and excessive input.
6. Obesity in adults by: hyperplasia and hypertrophy of adipocytes cells and less output.
B. Flexibility / flexibility of the body
1. Is a maximum bandwidth of motion in the joints, without being influenced by a force or pressure.
2. Influenced by: Type joints; Bone structure; Tissue around the joints, muscles, tendons and ligaments.
3. Women (especially pregnant women) are more flexible than men.
4. Children are bigger than adults.
5. Peak spasticity occurs at the end of puberty.
6. It is important at every gesture because it increases the efficiency of muscle work.
7. Can reduce injuries (those who are not good flexibility prone to injury).
8. Measurement: Sit up front (Sit and reachTest) Flexometer.
C. The muscle strength
1. It is produced maximal muscle contraction, is the ability to generate a voltage to a prisoner.
2. Male approximately 25% greater than women (testosterone is an anabolic steroid).
3. Measured with a dynamometer.
4. Durability pulmonary heart