PROCESS normal aging is a process marked by progressive changes in biochemical processes, resulting in abnormalities or changes in the structure and function of tissue, cell and non cell. . Various physical and psychosocial changes will occur as a result of aging process. The occurrence of a change in all people who reach old age is not caused by the disease process, causes why geriatric patients differ from other populations.
Mild memory loss, hearing and vision impairment (presbiakusis and presbyopia) is not a disease. Often it was hard to distinguish between impairment due process that occurs because fisologis with pathological disorders, such as in osteoporosis and atherosclerosis.
Many physiological changes that affect nutritional status occurred in the process of aging such as decreased basal metabolic rate (BMR) of approximately 2% per decade after age 30. Decrease the secretion of hydrochloric acid, pepsin and bile acids that have the potential to interfere with the absorption of calcium, iron, zinc, protein, fat and fat-soluble vitamins.
By decreasing the biological function of cells and organs, the adaptability of these functions to overcome the physical and mental disorders are also declining. With age a marked reduction in symptoms of physical and mental ability of a person, then some pathological conditions may arise due to the aging process. A variety of serious complications can arise due to changes in several organ systems and metabolic functions caused by immobilization. Decubitus, osteoporosis, constipation, weakness and psychological changes are some complications due to immobilization.
Osteoporosis can be grouped according to etiology of primary osteoporosis and secondary osteoporosis. Primary osteoporosis is occurring in postmenopausal women because of the aging process. While osteoporosis is secondary osteoporosis caused by many things, among others, by endocrine disorders, impaired liver function, kidney, vitamin D deficiency, hematological disorders, gastrointestinal disorders and various kinds of drugs. Secondary osteoporosis is one of the most common cause is a glucocorticoid. It is caused by glucocorticoids can affect the production of prostaglandin E, synthesis of insulin-like growth factor, 1 (IGF-1) and transforming growth factor (TGF).
Immobilization would also lead to a negative calcium balance, which is a manifestation of increased excretion of calcium in feces and urine. This change is associated with increased bone reabsorption secondary to lying down and less absorption in the intestine. 1.25 dihydroxyvitamin D serum levels are also reduced. During immobilization paratyroid hormone will increase along with levels of alkaline phosphatase during remobilisasi along with an increase in calcium reabsorption.
In adults approximately half of alkaline phospatase obtained from the bone and the other half of the liver. In osteoporosis phospahatase alkaline activity in the bone is usually increased. In early menopause, bone turnover (formation or resorption) increased by approximately 2-fold and continued to increase for several years, then began to decline.
Osteoporosis is a state of reduced bone mass in such a way that only with minimal trauma to the bone will break. Osteoporosis will eliminate the elasticity of bones to become brittle and easily occur causing fractures (fractures).