We investigated the associations and differences between dynamic strength index (DSI) calculated from different types of vertical jump (countermovement jump; CMJ and squat jump; SJ) and different isometric knee joint angles (30, 60 and 90[degrees]), and associations with force-velocity (FV) profile and its constituent variables (maximal theoretical force (V[subscript 0]), power (P[subscript max]) and velocity (V[subscript 0]) and the slope of the FV relationship (S[subscript fv]), on a sample of young athletes and active participants (n = 28). There were moderate associations between P[subscript max] and all DSI values (r = 0.42-0.69; p < 0.05), V[subscript 0] and all DSI values from CMJ and DSI[subscript 30] from SJ (r = 0.43-0.56; p < 0.05), while S[subscript fv] was associated only with DSI[subscript 30] and DSI[subscript 90] in CMJ (r = 0.40-0.43; p < 0.05). This suggests that DSI and FV methods provide similar information and can be used in a similar manner to direct an individual's training.