Activities that affect all components of physical fitness, aerobic exercises are done regularly wil

Cardiorespiratory endurance is the ability of the heart, lungs and blood vessels to function optimally at work in a state of rest and take oxygen and distribute it to an active network that can be used in the metabolic processes of the body (MOH, 1999).
Cardiorespiratory endurance is the most important component of physical fitness food warmer trays (MOH, 1999). Blain argues kardiorespiasi high durability demonstrate the ability to work high, which means the ability to expend considerable amounts of energy in a long period food warmer trays of time (Sharkey, 2010).
Cardiovascular endurance is influenced by genetic factors which specific traits are present in a person's body from birth. Research from Canada has examined aerobic fitness differences among siblings (dizygotic) and identical twins
Genetic influences on muscle strength and muscle endurance relates generally to compositions comprising muscle fibers of red fibers and white fibers. Someone who has the more appropriate to do is aerobic activity, while having more white skeletal muscle fibers, are better able to engage in activities that are anaerobic.
Similarly, the influence of heredity on body composition, often associated food warmer trays with body type. Someone who has endomorf type (short and round body shape) tend to have more fatty tissue when compared with type ektomorf muscle (lean body shape and height) (MOH, 1994).
Age affects almost all components jsmani freshness. Cardiovascular endurance showed a tendency to increase in the childhood food warmer trays until about twenty years and reached a maximum at the age of 20 to 30 years (Ministry of Health of the Republic of Indonesia, Directorate food warmer trays General of Public Health Directorate of Health Services Health Center, 1994). The power will decline with age, with a 8-10% reduction perdekade food warmer trays for individuals who are not active, whereas for active individuals such decline 4-5% perdekade (Sharkey, 2010).
Increased muscle strength of men and women alike until the age of 12 years, next after the age of puberty more men increase food warmer trays muscle strength, maximal achieved at the age of 25 years which gradually decreases and at the age of 65 living muscle strength only 65-70% of the power muscle at age 20 to 25 years.
Influence of age on flexibility and body composition generally occurs due to the aging process caused by decreased elasticity of the muscle due to reduced activity and the incidence of obese in old age (Dep Kes, 1994).
Physical fitness among men and women differently because of differences in body size that occur after puberty. Cardiovascular endurance at puberty there is a difference, because women have more fat tissue compared pria.Hal same is true of muscle strength, due to differences in muscle strength between men and women is caused by differences in the size of both large and proportioned muscle in the body.
Activities that affect all components of physical fitness, aerobic exercises are done regularly will improve cardiovascular endurance and reduce body fat. By doing exercise or physical activity is good and right means the whole organ is triggered to perform its functions food warmer trays so as to adapt to any given load.
Physical exercise will cause the muscles to become stronger. Improvement of muscle function, especially the respiratory muscles causing breathing to be more efficient at the moment on the lung istirahat.Ventilasi trained and untrained food warmer trays alike is relatively large, but the people who practice breathing slower and deeper. This causes the oxygen needed for muscle work on the ventilation process is reduced, food warmer trays so that the same amount of oxygen, the muscles will be more effectively trained work (Kravitz, 1997).
In people who are trained dive several food warmer trays months of improvement of respiratory regulation. This improvement occurred because of decreased blood levels of lactic acid, which is balanced by the reduction in the use of oxygen by the body tissues. Fisikakan exercise affects organs such that the organs work more efficiently and achieve maximum work capacity larger. The most important factor in the improvement of respiratory ability to achieve the optimal level is the ability to increase the capillary bed is active, so the amount of blood flow in the lungs more, and the blood that binds to oxygen per unti time will also increase. This increase is used to meet the oxygen needs of the tissue (Kravitz, 1997).
Decline in lung function of people who do not exercise or old age is mainly caused by loss of elasticity of the lung and the chest wall muscle. Case