Document Type



Post-activation potentiation (PAP) refers to the phenomenon where muscular performance is improved as a result of contractile history. The aim of this study was to investigate the effects of upper limb PAP on vertical jumping. Firstly, countermovement jumps were performed with (CMJAS) and without an arm swing (CMJ). Participants then carried out 10 dumbbell swings with a weight of 15% of the participant’s body weight and performed further countermovement jumps with an arm swing at 3 (PAP3mins), 6 (PAP6mins) and 9 (PAP9mins) minute rest periods. There was a significant difference (p < 0.05) in jump height, peak vertical GRF and peak concentric power when comparing CMJ to CMJAS. No significant difference was found when comparing a CMJAS to any of the conditions with induced PAP on the upper limbs. This indicates that inducing PAP on the upper limbs does not have a significant effect on jump height.