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Table 2 Results of Repeated measures ANOVA to examine the effects of sports (soccer vs. swimming), 12-month follow-up (time-moment 1 vs. time-moment 2) and interaction factor (sport d 12-month) among male adolescent athletes (soccer players, n = 20; swimmers, n = 20)

From: Growth, body composition and bone mineral density among pubertal male athletes: intra-individual 12-month changes and comparisons between soccer players and swimmers

Dependent variable

Effects

Between sports

12-month

Interaction

(sport d 12-month)

F

p

η2

F

p

η2

F

p

η2

Factorial ANOVA

Stature, cm

3.472

0.070

0.29b

319.355

 < 0.001

0.95f

4.211

0.047

0.32 c

Body mass, kg

0.989

0.326

0.16b

170.417

 < 0.001

0.90f

0.193

0.663

0.07

Fat tissue, %

3.733

0.061

0.30c

9.281

0.004

0.44c

1.067

0.192

0.21b

LST: total body, kg

7.850

0.008

0.41c

223.043

 < 0.001

0.92f

0.393

0.535

0.10b

LST: trunk, kg

8.186

0.007

0.42c

177.569

 < 0.001

0.91f

1.011

0.391

0.16b

LST: upper limbs, kg

11.598

0.002

0.48c

130.695

 < 0.001

0.88e

0.472

0.496

0.11b

LST: lower limbs, kg

4.371

0.043

0.32c

207.302

 < 0.001

0.92f

0.001

0.989

0.01

aBMD: total body, g.cm−2

5.545

0.024

0.36c

66.908

 < 0.001

0.80e

4.847

0.034

0.34c

a

11.088

0.002

0.48c

2.087

0.157

0.23b

7.627

0.009

0.41c

aBMD: subhead, g.cm−2

5.254

0.028

0.35c

90.383

 < 0.001

0.84e

5.195

0.028

0.35c

a

13.223

0.001

0.51d

0.564

0.457

0.12b

6.521

0.015

0.39c

aBMD: trunk, g.cm−2

0.248

0.621

0.08

92.522

 < 0.001

0.84e

0.459

0.502

0.11b

aBMD: upper limbs, g.cm−2

0.569

0.455

0.12b

1.725

0.197

0.21b

0.111

0.741

0.05

aBMD: lower limbs, g.cm−2

9.146

0.004

0.44c

97.238

 < 0.001

0.85e

14.294

0.001

0.52d

aBMD: PF-neck, g.cm−2

5.052

0.030

0.34c

40.643

 < 0.001

0.72e

6.015

0.019

0.37c

aBMD: PF-ward, g.cm−2

8.129

0.007

0.42c

28.575

 < 0.001

0.66d

9.401

0.004

0.45c

aBMD: PF-trochanter, g.cm−2

7.718

0.008

0.41c

56.514

 < 0.001

0.77e

11.106

0.002

0.48c

  1. LST (Lean soft tissue), aBMD (Areal bone mineral density), PF (Proximal femur), F (F-value), p (Significance value)
  2. a(Repeated measures ANCOVA controlling for stature at baseline, centered stature = 152.3 cm)
  3. Magnitude effect: b(small), c(moderate), d(large), e(very large), f(nearly perfect)