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Table 3 Mechanical energy compensation coefficients (MECs) of the ankle, knee, and Initial hip contact and the Peak knee flexion of front and right lunging (Meanā€‰Ā±ā€‰SD) for concentric and eccentric energy transfers

From: Comparison of mechanical energy transfer during right-forward lunge between female amateur and professional badminton players

Variable

Initial contact

Peak knee flexion

Professional

Amateur

p-Value

Professional

Amateur

p-Value

Meanā€‰Ā±ā€‰SD

Meanā€‰Ā±ā€‰SD

Ankle

MECC

0.42ā€‰Ā±ā€‰0.07

1.69ā€‰Ā±ā€‰0.16

<ā€‰0.001*

0.52ā€‰Ā±ā€‰0.08

0.44ā€‰Ā±ā€‰0.24

0.318

MECE

0.88ā€‰Ā±ā€‰0.06

0.84ā€‰Ā±ā€‰0.08

0.302

0.79ā€‰Ā±ā€‰0.13

0.61ā€‰Ā±ā€‰0.13

<ā€‰0.007*

Knee

MECC

1.71ā€‰Ā±ā€‰0.57

0.29ā€‰Ā±ā€‰0.28

<ā€‰0.001*

0.03ā€‰Ā±ā€‰0.02

0.64ā€‰Ā±ā€‰0.16

<ā€‰0.001*

MECE

1.81ā€‰Ā±ā€‰0.57

0.44ā€‰Ā±ā€‰0.32

<ā€‰0.001*

0.30ā€‰Ā±ā€‰0.06

2.04ā€‰Ā±ā€‰0.33

<ā€‰0.001*

Hip

MECC

1.48ā€‰Ā±ā€‰0.20

1.33ā€‰Ā±ā€‰0.27

0.198

1.46ā€‰Ā±ā€‰0.51

0.38ā€‰Ā±ā€‰0.23

<ā€‰0.001*

MECE

2.46ā€‰Ā±ā€‰1.21

0.38ā€‰Ā±ā€‰0.10

<ā€‰0.001*

1.37ā€‰Ā±ā€‰0.10

0.32ā€‰Ā±ā€‰0.16

<ā€‰0.001*

  1. Note: *statistically significant differences between the Professional and Amateur groups. **P-valueā€‰<ā€‰0.05 is considered to be statistically significant; MEC always zero for no-transfer conditions
  2. Abbreviations: MEEC, concentric energy transfer condition; MEEE, eccentric energy transfer condition; MEEN, no transfer condition