Frailty is an unstable condition related to functional decline, which affects the individual's interaction with the environment and may cause limitation in the activities of daily living and result in loss of autonomy. This study aimed to provide a theoretical background on the effects of physical exercise on frail older people. This is a systematic review of studies published between 2011 and 2016 in the Medline, PubMed, PEDro, SciELO and LILACS databases. After data search, 12 articles were included in the investigation, which highlight the positive effects of physical exercise on frailty, emphasizing multicomponent training with regularity of two to three times a week. We can conclude that physical exercises bring beneficial effects to frail older people in terms of quality of life and physical and cognitive aspects.

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