摘要：This study aimed to identify the number of jumps in Jump Kick training (Mix 30), the magnitudes and duration time of the impacts generated in the knee and ankle during landing; compare the magnitudes and associate them with weight, height and practice time. Eight teachers with 28,12±6,46 years; height 171,0±6,12 m; weight 68,38±9,04 kg and 41±32,23 months of practice time in Body Combat participated in this study. Was used a semi-structured interview, a video camera, a digital balance and a tri-axial accelerometer. The teachers realized 1420 jumps per class; the biggest impact magnitudes occurred in the ankle (31,4g, 27,6 g e 21,6 g in axis x, y e z respectively); the biggest impact time occurred in the knee (0,028 s, x axis); there was difference in impact values between teachers; there was any correlation (p≤0,05) between variables. Even if the impact values are low, the high impact numbers during a day is a factor that can cause future injuries.
