Variables

Before

/After

JD-Up group

(n = 21)

JD-Down group

(n = 27)

Main effects

Interaction

Group

Before/After

Jump distance (m)

Before

3.77 ± 0.34

4.18 ± 0.47^a

n.s.

n.s.

P < 0.05

After

4.00 ± 0.32^b

3.94 ± 0.50^c

Feedback parameters

Speed (m/s)

Before

3.34 ± 0.43

3.64 ± 0.40^a

P < 0.05

n.s.

P < 0.05

After

3.54 ± 0.35^b

3.57 ± 0.50

Angle (degree)

Before

12.9 ± 5.1

13.5 ± 5.2

n.s.

n.s.

n.s.

After

15.2 ± 4.3

14.5 ± 4.4

GT height (m)

Before

0.83 ± 0.08

0.85 ± 0.11

n.s.

n.s.

n.s.

After

0.82 ± 0.08

0.85 ± 0.13