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Table 4 Results of the main effect variance analysis

From: Spine system changes in soldiers after load carriage training in a plateau environment: a prediction model research

Item

Load time

Load weight

DEVSQ

Df

Mean square

F

P

DEVSQ

Df

Mean square

F

P

CSA

12.258

2

6.129

0.243

0.7915

86.341

2

43.171

3.359

0.1050

Gray value

660.432

2

330.216

2.925

0.1298

165.991

2

82.995

0.425

0.6721

FCSA

8.102

2

4.051

0.114

0.8940

128.419

2

64.209

4.159

0.0736

FCSA/CSA

3.249

2

1.624

0.283

0.7630

13.060

2

6.530

1.591

0.2791

L1/2 IVD

10.450

2

5.225

0.189

0.8322

32.111

2

16.055

0.670

0.5463

L2/3 IVD

36.934

2

18.467

1.072

0.3999

72.082

2

36.041

3.171

0.1149

L3/4 IVD

57.379

2

28.690

3.193

0.1137

3.654

2

1.827

0.102

0.9047

L4/5 IVD

4.001

2

2.001

0.209

0.8169

15.676

2

7.838

1.029

0.4130

L5/S1 IVD

168.697

2

84.349

1.737

0.2539

29.461

2

14.731

0.205

0.8199

L1-S1 IVD

19.978

2

9.989

2.343

0.1770

7.759

2

3.880

0.616

0.5712

L3/4 E-IF%

0.000

2

0.000

1.462

0.5050

0.000

2

0.000

1.573

0.4910

L4/5 E-IF%

5.789

2

2.894

0.636

0.6640

0.560

2

0.280

0.062

0.9441

LSA

98.999

2

49.500

0.217

0.8111

1075.995

2

537.998

8.228

0.0191

LLA

1822.127

2

911.064

1.922

0.2264

1117.132

2

558.566

0.944

0.4400

  1. DEVSQ Deviation sum of squares, Df Degrees of freedom, CSA Cross-sectional area, FCSA Functional cross-sectional area, IVD Intervertebral discs, E-IF% Percentage of effective intervertebral foramen area, LSA Lumbosacral angle, LLA Lumbar lordosis angle