Aging is characterized by numerous changes that affect structures at the molecular, cellular, organ and whole organism. One of the effects of decreasing physical activity and the progressive aging of the human body is a systematic decline in muscle strength paralleled by a deterioration in the basic activities of daily living. Exercises, including exercises aimed at increasing muscle strength, performed by older people slow down the aging process and prevent the occurrence of many diseases. However, even the constant and regular physical activity can not prevent a age-related loss of strength, the adaptive changes in the central nervous system and muscles caused by the use of strength training can largely compensate for this process. Exercises aimed at increasing strength and muscle mass, commonly called strength exercises, is the world’s well-known and used by the elderly. In Poland, the model of the physical improvement of the elderly is based almost exclusively on endurance and stretching exercises, and the use of traditional strength exercises is often cause for concern. Aim of this work is to justify the need for exercises aimed at increasing muscle strength in older people and presentation of the results of their use.