Experimental approach to the problem
vastus lateralis stiffness
The experiment was performed following a randomized crossover design, where each participant performed four experimental sessions to compare the acute effects of bilateral (BI-CA), stronger-only (S-CA), weaker-only (W-CA) lower limb or no CA (CTRL) on vastus lateralis stiffness, countermovement jumps selected kinematics variables and 10 m sprint time. Measurements were performed 5 minutes before and in the 5