Table 3 Height of center of mass elevation, swing depth, relative maximal power, and shock absorption depth (mean ± SD) in deaf male basketball players and inactive deaf participants.there is a problem with X ± SD in the table header

From: Longitudinal anthropometric and physical performance adaptations in the Polish Deaf National basketball team during a three-year preparation for the deaflympics

Variables

\(\:\stackrel{-}{\varvec{X}}\pm\:\varvec{S}\varvec{D}\)

(2019; n = 11)

\(\:\stackrel{-}{\varvec{X}}\pm\:\varvec{S}\varvec{D}\)

(2021; n = 11)

T(10)/p/Cl

(n = 11; 2019 and 2021)

Cohen’s d

(2019–2021)

X ̅±SD

(DS; n = 15)

p/Cohen’s d

(2021 vs. DS)

Countermovement jump

Pw_max

3534.70 ± 666.60*

3362.10 ± 383.31

0.91/0.38/(−250.50 ÷ 595.40)

0.32

1900.47 ± 451.59

< 0.01/3.46

H_max

0.498 ± 0.076

0.484 ± 0.082

0.84/0.42/(−0.02 ÷ 0.05)

0.18

0.387 ± 0.134

0.05/0.87

D_BML

0.381 ± 0.057

0.369 ± 0.071

0.83/0.42/(−0.02 ÷ 0.04)

0.19

0.310 ± 0.054

< 0.01/0.95

Akimbo countermovement jump

Pw_max

2658.81 ± 561.26

2503.91 ± 521.61

1.44/0.18/(−85.20 ÷ 395.10)

0.29

1721.50 ± 378.60

< 0.01/1.70

H_max

0.421 ± 0.044

0.408 ± 0.085

0.70/0.50/(−0.02 ÷ 0.05)

0.19

0.310 ± 0.063

< 0.01/1.35

D_BML

0.368 ± 0.071

0.368 ± 0.092

−0.01/0.99/(−0.06 ÷ 0.06)

0.00

0.298 ± 0.060

< 0.01/0.92

Spike jump

Pw_max

4272.09 ± 672.90

4353.18 ± 643.61

−0.44/0.67/(−527.20 ÷ 355.00)

−0.12

2443.20 ± 550.51

< 0.01/3.20

H_max

0.542 ± 0.099

0.563 ± 0.107

−1.61/0.14/(−0.05 ÷ 0.01)

−0.20

0.378 ± 0.082

< 0.01/1.99

D_BML

0.349 ± 0.079

0.357 ± 0.077

−0.40/0.70/(−0.05 ÷ 0.04)

−0.10

0.272 ± 0.072

< 0.01/1.16

D_SPJ

0.338 ± 0.076

0.356 ± 0.078

−0.95/0.37/(−0.06 ÷ 0.02)

−0.23

0.256 ± 0.073

< 0.01/1.32

  1. n – number of athletes; Pw_max – maximum power output of lower limbs; H_max – maximal jump height; D_BML – depth of lowering of the body’s center of mass during jump; D_SPJ – depth of lowering of the body’s center of mass after landing in spike jump; DS – physically inactive Deaf students (control group); T – t statistic for paired-sample t-test; p – p value indicating statistical significance, p < 0.05 considered significant; Cl – 95% confidence interval; Cohen’s d – effect size for comparison between 2019–2021 or 2021 vs. DS; 0.20 → small effect, 0.50 → medium effect, 0.80 → large effect; * indicates nonnormal distribution in Shapiro–Wilk test.
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