Table 4 Effect coefficients of the variables in producing musculoskeletal symptoms

Posture group A

0.937

0.734

P < 0.001

Posture group B

0.912

0.714

P < 0.001

Coupling

0.743

0.582

P < 0.001

Contact stress

0.348

0.272

P < 0.001

Load

0.840

0.658

P < 0.001

Force

0.815

0.638

P < 0.001

Static activity

0.747

0.585

P < 0.001

Repetitive activity

0.748

0.586

P < 0.001

Rapid movement

0.670

0.525

P < 0.001

Throwing motion

0.751

0.588

P < 0.001

Hand – arm vibration

0.446

0.349

P < 0.001

Whole body vibration

0.328

0.257

P < 0.001

Air temperature

0.442

0.346

P < 0.001

Work – rest cycle

0.614

0.481

P < 0.001

Strain

0.783

-

P < 0.001