Date of Award
Summer 5-13-2025
Document Type
Dissertation
Degree Name
Doctor of Kinesiology (PhD)
Department
Kinesiology
Abstract
The purpose of this case series was to examine the effects that flywheel training had on a person’s dynamic strength index in comparison to concurrent training (DSI). It has been shown that with strength training alone there can be an overall decrease in the DSI, due to an increase the IMTP peak force and no significant change in the CMJ performance (Comfort et al., 2018). Flywheel training’s effect on the DSI specifically have not been previously examined. It was hypothesized that a regimented flywheel training intervention will demonstrate an
improvement in the peak force for the countermovement jumps as well as the isometric mid- thigh pull yet not changing the DSI score significantly. The participants performed a three-week
block consisting of concurrent training then followed by a three-week block consisting of solely flywheel-based training. The DSI was measured eight times throughout a six-week intervention. The three participants all had a previous history of strength training; however, none have trained extensively utilizing flywheel training. At the end of the study, there was an average increase of 20% in CMJ peak force across the three individuals. There was an average increase of 9.4% in IMTP peak force across the three individuals. The average peak force increases of the three individuals in both the CMJ and the IMTP can be considered sizeable, yet these results are not considered statistically significant indicating that further studies with larger populations need to be examined.