![knee tuck jumps knee tuck jumps](https://i.ytimg.com/vi/Xo0eV-4g2-I/hqdefault.jpg)
FPPA- r during the TJA was significantly and moderately greater in the circa-peak height velocity (PHV) group compared with the post-PHV cohorts (169.4° vs 175.3° P < .05 ES = 0.49). Results: On a whole-group level, FPPA- r (172.7° vs 177.2° P < .05 effect size = 0.46) and FPPA- l (173.4° vs 179.2° P < .05 ES = 0.62) were significantly greater for both limbs in the TJA compared with the DVJ however, these differences were less consistent when grouped by maturity status. FPPA for both right (FPPA- r) and left (FPPA- l) legs, with values <180° indicative of medial knee displacement.
![knee tuck jumps knee tuck jumps](https://dailyburn.com/life/wp-content/uploads/2016/10/Knee-Tuck-Jumps.gif)
Participants performed 3 trials of the DVJ and TJA, during which movement was recorded with 2-dimensional video cameras. Methods: A total of 57 male youth soccer players from an English championship soccer club participated in this study.
![knee tuck jumps knee tuck jumps](https://i.ytimg.com/vi/O8Xbq6sED0A/hqdefault.jpg)
Objective: To compare the frontal plane projection angles (FPPAs) during the drop vertical jump (DVJ) and tuck jump assessment (TJA) in a cohort of elite male youth soccer players of varying maturity status. This is especially the case for rebounding-based protocols involving young athletes. Context: Despite the popularity of jump-landing tasks being used to identify injury risk factors, minimal data currently exist examining differences in knee kinematics during commonly used bilateral jumping tasks.