The aim of this study was to show the influence of speed training over the aerobic performance of senior swimmers. 15 well-trained swimmers (aged 21+-3 years) performed two times six repeated maximal 50-m sprints (RS) departing every 2 minutes, interspersed with either in or out recovery. At the beginning of the 6-month period, the swimmers performed a 2000m test, and the lactate was taken before and after the end of the test, so the heart rate. A link was made between lactate and heart rate in order to confirm the development of aerobic capacity. Due to the importance of limiting factors during a sprint exercise, certain interdependence between aerobic indices could be expected. Our study demonstrates a significant correlation between aerobic capacity and repeated sprint exercise, with an influence on aerobic capabilities, as well as a significant correlation between general endurance and anaerobic sprint power. The high correlation between them suggests that endurance and overall resistance are related, at least partially. Similarly, the best indices of general anaerobic power are observed in subjects with the highest anaerobic power indices. On the other hand, the highest aerobic indices were observed in subjects with the lowest anaerobic power indices. To conclude, the present results confirm the beneficial effect of speed training over the aerobic performance.
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