RESUMOEste estudo objetivou identificar os testes de desempenho motor mais fortemente associados à fragilidade e seus respectivos pontos de corte, e verificar o melhor indicador de desempenho motor como instrumento de triagem para discriminar fragilidade em idosos cadastrados em ABSTRACTThis study aimed to identify the motor performance tests more strongly associated with frailty and respective cut-off points, and verify the best motor performance indicator as screening tool to discriminate frailty in elderly registered in Family Health Unit. Participated in the study 139 elderly aged ≥60 years, 105 women and 34 men. The frailty was identified by the criteria of Fried et al. (2001). The motor performance tests realized were: Handgrip strength (HS), sit-to-stand test, walk test (WT) and pick up a pen test. Logistic regression analysis was used to associate the motor performance tests and frailty. The cutoff points were evaluated by parameters provided by Receiver Operating Characteristic curve (ROC), with significance level of 5%. Data were analyzed using SPSS 21.0 and MedCalc. The mean age was 72.32 ± 8.4. The walk test was positively associated with frailty (OR 1.30; p <0.01), and handgrip strength in elderly women was inversely associated with frailty on feminine sex (OR 0.74; p <0.001). The WT presented a cutoff 5s (sensitivity 88.9 and specificity 74.5%) and the handgrip in the women obtained a cutoff point 14.6 kgf (sensitivity 83.3 and specificity 79.0%). It was concluded that the walk test was the best screening indicator to discriminate the frailty in elderly, both sexes, registered in a Family Health Unit.