 This research examined the potential of exoskeletons to increase human performance in fast motion tasks. It focused on the effects of different spring stiffnesses, joint configurations, and initial engagement angles on the maximum jump height. The results showed that increasing the spring stiffness increases the jump height up to a certain point, while a single joint configuration was more effective than multiple joints. Additionally, an elliptical pulley had an advantage over a round pulley when it came to maximum spring tension. Finally, an initial engagement angle of 50 degrees was found to be optimal. This article was authored by Baraka Straitge and Roziel Riemer.