The paper deals with the topic of the most common modalities of physical therapy in the gerontological population preceded by the assessment of physiotherapists. Aging is a biological process that begins at birth and that every human being goes through, while old age is the last developmental period in human life. The characteristics of older people are manifested in terms of their functional abilities. As age progresses, numerous changes take place in the organism, which causes progressive weakening and impairment of organ function, so multimorbidity is common at that age, which further worsens the quality of life. Physiotherapy assessment is the process of collecting and interpreting the data needed to understand a person, situation, or system, including planning the therapeutic process, and documentation, using specific tools and instruments that are an integral part of physiotherapy. The assessment includes an examination of the individual with visible or potential impairment as well as functional limitations. The main goals of physiotherapy in the intervention of elderly patients are to reduce pain, increase strength, increase or maintain range of motion in the joints, maintain or establish balance and coordination, learning to walk with aids and using a wheelchair, improving functional abilities in daily activities, and finally education patient and family about emerging problems and habits. The aim of this review is to search medical databases to review the literature on the most common modalities of physical therapy in the gerontological population, focusing on the most common, and based on the results to describe the most optimal approach to rehabilitation that will help future researchers develop even more precise guidelines for rehabilitation. All studies up to 2019 were taken into account, and databases relevant to the field of physical and rehabilitation medicine were searched: PubMed, PEDro (Physiotherapy Evidence Database) and Cochrane Central. To date, evidence in the studies has indicated for now in the gerontological population, only the effectiveness of aerobic exercise and cryotherapy in rheumatoid arthritis, while ultrasound, magnet and electrotherapy indicate a benefit, but very low levels of evidence.