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Dry-land resistance training is intended to increase the force and power output of the muscles specific to swimming performance. In terms of turning ability in the pool, leg power is thought to be important. The purpose of this study was to determine if leg power during a jump squat, countermovement jump and a vertical jump would be significantly correlated with tumble turn ability, and whether these jumps effectively discriminate between those swimmers with faster and slower turning ability. The tumble turn velocity (V2-4 m, V4-6m, V6-8 m and V8-10 m) of 67 male swimmers from the Australian Institute of Sport Elite Development Squad was assessed using video analysis and then compared with the leg power measures. All the independent variables were significantly related (P < 0.05) to initial turn velocity (V2-4 m), but the correlations could only be described as low to moderate (r= 0.28-0.41). No anthropometric or …