The goal of this paper was to prove whether ergogenic aids could give better results in the performance and the number of repetitions in deadlift, i.e. whether there are differences and to what extent in the three lifting conditions. Selected population of top level powerliters (n=8) performed a deadlift in three conditions: only the bar (1), the chalk (2) and the lifting straps (3). Lifts were made in all three conditions with 85% of 1 RM and they performed the maximum number of repetitions until the muscle failure. The results of MANOVA method and Tukey post-hoc test show a statistically significant difference (p = 0,01) between the conditions 1 and 2 in the number of repetitions and a statistically significant difference (p = 0,04) between conditions 2 and 3 in the peak speed variables, i.e. the results indicate that the use of chalk increases the number of repetitions compared to the lift only with the bar by 102%. Also, the use of chalk increases the peak speed compared to the use of lifting straps by 60%. In conclusion, chalk has given the best results in the number of repetitions and the performance of deadlift which can be very important in increasing the overall work. A statistically significant difference in the use of lifting straps has not occurred in any variable, but there is a limiting factor which is the selected and specific powerlifter population. The assumption is that in nonselected populations, the lifting straps would have a statistically significant influence on most variables.