Tips. The pile squat is effective if you can achieve proper form and a complete range of motion. A lack of flexibility in the ankles will affect your form. To correct this, stand with your heels on two small blocks. The floor may limit your range of motion.
OTHER FORMS OF HYDROCEPHALUS. Hydrocephalus ex vacuo: dilatation of the cerebral ventricles due to loss of brain tissue. This is a common sequel of wasting brain diseases (leukodystrophies, multiple sclerosis, multiple strokes, Alzheimer's disease, Huntington's disease, etc.).
Pectus excavatum (a Latin term meaning hollowed chest) is the most common congenital deformity of the anterior wall of the chest, in which several ribs and the sternum grow abnormally. This produces a caved-in or sunken appearance of the chest. It can either be present at birth or not develop until puberty. Pectus excavatum is sometimes considered to be cosmetic; however, depending on the severity, it can impair cardiac and respiratory function and cause pain in the chest and back. People with the condition may experience negative psychosocial effects, and avoid activities that expose the chest.