Flywheel Eccentric Overload Training vs. Plyometric Training on Countermovement Jump Parameters, Badminton Specific Agility and Flexibility among University Badminton Players

Low, Ming Jun (2023) Flywheel Eccentric Overload Training vs. Plyometric Training on Countermovement Jump Parameters, Badminton Specific Agility and Flexibility among University Badminton Players. Final Year Project (Bachelor), Tunku Abdul Rahman University of Management and Technology.

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Abstract

The purpose of this study was to compare the effectiveness between flywheel eccentric overload training (overloaded concentric action) and plyometric training on countermovement jump (CMJ) parameters, badminton specific agility and hamstring flexibility among university badminton players in four weeks. A total of 36 university badminton players were randomly assigned to a flywheel eccentric overload group (n = 12; age = 20.75 ± 1.14 years; height = 174.23 ± 5.14 cm; weight = 69.43 ± 10.89 kg), plyometric training group (n = 12; age = 20.42 ± 1.31 years; height = 168.73 ± 6.79 cm; weight = 63.34 ± 10.33 kg) and control group (n = 12; age = 20.67 ± 1.15 years; height = 173.96 ± 6.03 cm; weight = 69.23 ± 12.66 kg). While all groups maintained their regular badminton playing sessions, flywheel eccentric overload group underwent additional flywheel eccentric overload training and plyometric training group underwent additional plyometric training for four weeks with two sessions per week. The participants were assessed on CMJ, Badcamp agility test as well as sit-and-reach test before and after intervention. Both flywheel eccentric overload group and plyometric training group showed significantly better scores than control group in CMJ height (p < .05), modified reactive strength index (p < .05) and Badcamp agility test (p < .01) after the intervention. However, there were no significant difference (p > .05) after intervention between flywheel eccentric overload group and plyometric training group for CMJ height, modified reactive strength index, Badcamp agility test as well as sit-and-reach test. These suggested that flywheel eccentric overload training and plyometric training have the same effectiveness in improving CMJ height, modified reactive strength index, badminton specific agility and hamstring flexibility among university badminton players in four weeks. However, the effects of both training modalities in improving hamstring flexibility among university badminton players do not seem to be very effective.