The transition stage in triathlon effect performance and injury risk. The objective was to determine neuromuscular fatigue induced over 40 km of cycling and the efficacy of plyometric training to combat fatigue and improve performance in the foot race. Twelve triathletes participated, with 5 completing the plyometric training and 7 continuing their normal training. Jump tests were conducted both before and after 40 km of cycling to establish fatigue and pace during the 5 km race was measured. Significant differences were observed in jump height (p<0,05) indicated that 40 km of cycling induces fatigue in the lower extremities. Following plyometric training significant improvements were observed in the Squat Jump test conducted after cycling (p=0.038) and in the pace of the first kilometre (p=0.015). Plyometric training appears to be more efficacious than regular training for reducing neuromuscular fatigue and improving the pace of the first kilometre.
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