What is apposition bone?

Apposition bone refers to a type of bone growth where new bone tissue is added to the external surface of the existing bone tissue. It occurs in response to mechanical stress or strain, as well as hormonal and metabolic factors. Apposition bone growth helps to increase bone density and strength, providing structural support for the body. It is particularly important in areas that are subject to repeated mechanical stress, such as the bones of the hands, feet, and spine. Apposition bone growth is regulated by a number of factors, including vitamins and minerals, growth hormone, estrogen, and testosterone. It is also influenced by physical activity and exercise, with weight-bearing activities such as running and weightlifting being particularly effective in promoting apposition bone growth.