The aim of the present study was to investigate the effect of a seven-week strength training intervention using either the power clean exercise or loaded hex bar jump in enhancing performance in counter movement jump (CMJ), sprint, 505 change of direction (COD), power clean and loaded hex bar jump. Twenty-two U17 elite soccer athletes (height=182.5±5.1 cm, body mass=70±5.2 kg) underwent a seven-week strength training intervention with performance tests before and after. The athletes were randomly divided into a hex bar training group (HX) (N = 11) or a power clean group training (PC) (N = 11). They all completed three familiarization sessions before the pre-test. The first test day consisted of the loaded hex bar jump test, power clean one repetition maximum (1RM) and CMJ, while day two consisted of sprint and COD. From pre-test to post-test, CMJ (p<0.001), power clean 1RM (p<0.01), and power output for loaded hex bar jump (p<0.05) were significantly increased for both the HX and PC group. A decrease in 10-meter sprint time (p=0.02) from pre-test to posttest was found for the PC group. An unpaired t-test revealed no significant differences in any of the physical performance measures between groups at either the pre-test or the post-test. In conclusion, power clean and loaded hex bar jump training were equally effective in enhancing physical performance.