Today, BMI has become a major diagnostic tool for assessing the weight of a subject and its gap from the ideal, considered as being statistically associated with the lower risk of developing disease
The middle arm muscle circumference (MAMC) of the upper arm measures the circumference of the arm in the midway between the shoulder and the elbow. This assessment is used as an anthropometric measurement of skeletal muscle mass and to estimate the amount of muscle protein in the body.
Walking test (walking-speed) is the method most frequently used in clinical practice for measuring step velocity and represents the screening test for the diagnosis of sarcopenia.
Loss of muscle mass is often accompanied by the risk of adverse events such as physical disability and reduced quality of life. When the loss is of 30% or more of muscle mass, the risk of falling greatly increases with a consequent increase in the risk of fracture.