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KMID : 1146820230250040041
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Asian Journal of Kinesiology
2023 Volume.25 No. 4 p.41 ~ p.49
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Effect of Loaded Plyometric Training on Physical Fitness, Lower Extremity Isokinetic Muscle Function and Dynamic Balance
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Lee Gwan-Hyung
Lee Kwang-Jin
An Keun-Ok
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Abstract
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OBJECTIVES : This study purposed to investigate the effects of an 8-week intervention of loaded plyometric training on physical fitness, lower limb isokinetic muscle function, and dynamic balance in healthy adults.
METHODS : The participants were 12 undergraduate students at K University in Chungcheong-do, South Korea, who had no experience of injury in the past year and who showed ≥250 peak torque/body weight(%) in the test of lower limb isokinetic muscle function. At pre-test and post-test, an identical set of tests was conducted to assess the physical fitness, lower limb isokinetic muscle function, and dynamic balance.
RESULTS : After exercise intervention, Loaded plyometric training group(LPTG) had significant differences in sit-ups, standing long jump, T agility test, extensor muscle strength-right(EMS-R), flexor muscle strengthright( FMS-R), extensor muscle power-left(EMP-L), flexor muscle power-left(FMP-L), flexor muscle powerright( FMP-R) and anterior-left(AN-L). Unloaded plyometric training gruop(UPTG) had significant differences in standing long jump, T agility test, EMS-R, EMP-L, and posterolateral-right(PL-R). Between the two groups, there were significant differences in standing long jump, extensor muscle strength-left(EMS-L), and EMP-L.
CONCLUSIONS : Thus, compared to the UPTG, the LPTG has been shown to exert a stronger effect on the standing long jump, muscle strength, and muscle power, and it is predicted to be a more effective method of exercise.
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KEYWORD
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Dynamic Balance, Fitness, Isokinetic Muscle Function, Loaded Plyometric Training, Unloaded Plyometric Training
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