Aging is a natural and unstoppable process that affects every human being. It is caused by various factors that leave larger or smaller consequences on the human body and is characterized by the weakening of the function of all organic systems. Physiotherapy deals with changes affecing the musculoskeletal system, such as reducing the density of bones, reducing flexibility in joints, elasticity of tendons and loss of muscle mass. These changes can be accelerated by some pathological conditions such as diseases and injuries. Physiotherapy works to prevent and suppress such conditions and strives to ensure the patient's independence and functionality. The initial step in any physiotherapy intervention is a physiotherapy assessment. It consists of various measurements, questionnaires and tests, the results of which are synthesized and analyzed at the end, and a therapy plan is determined accordingly. The physiotherapist determines which measurements, questionnaires and tests he will use according to the patient's diagnosis and his assessment of his condition and possibilities. In this paper, the physiotherapy assessment of elderly people will be studied, that is, how it is carried out, how data is collected and analyzed, and what is its importance in the implementation of therapy.