Abstract
This study explored the influence of different counter movement jump (CMJ) goals on performance, kinetics, and kinematics between 56 highly-trained and elite track and field (T&F), football, and futsal athletes. Within and between-sport difference were compared when aiming to: (a) “jump as high as possible” (CMJ h ) and (b) “jump as fast as possible” (CMJ f ), using a mixed MANOVA and follow-up univariate mixed ANOVAs. Movement goals had a significant main effect on all variables (p < 0.001). Comparatively, CMJ f elicited higher mean propulsive power normalized to body mass (MPP bm , η p 2 = 0.794) and reactive strength index modified (RSI MOD , η p 2 = 0.755), alongside lower jump height (η p 2 = 0.782), contraction time (ConT, η p 2 = 0.857), propulsive displacement (η p 2 = 0.751), and countermovement velocity (CM velocity , η p 2 = 0.600). Sport interaction analyses revealed that T&F athletes consistently outperformed the other sports in RSI MOD across both movement goals (d = 1.105 − 1.598). MPP bm and ConT differed significantly between T&F and football (d = 0.947 − 1.324). A Movement goal × Sport interaction for CM velocity indicated that T&F and football athletes increased CM velocity under CMJ h (d = 1.242 − 1.635, p < 0.001) compared to CMJ f , whereas futsal players maintained similar downward motion across goals (p = 0.938). In conclusion, movement goals significantly modify CMJ performance variables in such athletes, and these effects are further influenced by sport specialization. Clear and goal-specific verbal instructions should be standardized in CMJ testing to ensure reliable athlete monitoring and performance evaluation.
Description
This study investigates how different jump goals affect performance in elite athletes.